diff --git a/src/bootstrap/test.rs b/src/bootstrap/test.rs
index e168dd571f6d2..935ce5e7f84b3 100644
--- a/src/bootstrap/test.rs
+++ b/src/bootstrap/test.rs
@@ -1052,6 +1052,9 @@ impl Step for Tidy {
         if builder.is_verbose() {
             cmd.arg("--verbose");
         }
+        if builder.config.cmd.bless() {
+            cmd.arg("--bless");
+        }
 
         builder.info("tidy check");
         try_run(builder, &mut cmd);
diff --git a/src/test/mir-opt/address_of.address_of_reborrow.SimplifyCfg-initial.after.mir b/src/test/mir-opt/address_of.address_of_reborrow.SimplifyCfg-initial.after.mir
index d41a66871cc43..5f8b2f9312b75 100644
--- a/src/test/mir-opt/address_of.address_of_reborrow.SimplifyCfg-initial.after.mir
+++ b/src/test/mir-opt/address_of.address_of_reborrow.SimplifyCfg-initial.after.mir
@@ -1,115 +1,115 @@
 // MIR for `address_of_reborrow` after SimplifyCfg-initial
 
 | User Type Annotations
-| 0: user_ty: Canonical { max_universe: U0, variables: [CanonicalVarInfo { kind: Ty(General(U0)) }], value: Ty(*const ^0) }, span: $DIR/address-of.rs:7:5: 7:18, inferred_ty: *const [i32; 10]
-| 1: user_ty: Canonical { max_universe: U0, variables: [CanonicalVarInfo { kind: Region(U0) }], value: Ty(*const dyn std::marker::Send) }, span: $DIR/address-of.rs:9:5: 9:25, inferred_ty: *const dyn std::marker::Send
-| 2: user_ty: Canonical { max_universe: U0, variables: [CanonicalVarInfo { kind: Ty(General(U0)) }], value: Ty(*const ^0) }, span: $DIR/address-of.rs:13:12: 13:20, inferred_ty: *const [i32; 10]
-| 3: user_ty: Canonical { max_universe: U0, variables: [CanonicalVarInfo { kind: Ty(General(U0)) }], value: Ty(*const ^0) }, span: $DIR/address-of.rs:13:12: 13:20, inferred_ty: *const [i32; 10]
-| 4: user_ty: Canonical { max_universe: U0, variables: [], value: Ty(*const [i32; 10]) }, span: $DIR/address-of.rs:14:12: 14:28, inferred_ty: *const [i32; 10]
-| 5: user_ty: Canonical { max_universe: U0, variables: [], value: Ty(*const [i32; 10]) }, span: $DIR/address-of.rs:14:12: 14:28, inferred_ty: *const [i32; 10]
-| 6: user_ty: Canonical { max_universe: U0, variables: [CanonicalVarInfo { kind: Region(U0) }], value: Ty(*const dyn std::marker::Send) }, span: $DIR/address-of.rs:15:12: 15:27, inferred_ty: *const dyn std::marker::Send
-| 7: user_ty: Canonical { max_universe: U0, variables: [CanonicalVarInfo { kind: Region(U0) }], value: Ty(*const dyn std::marker::Send) }, span: $DIR/address-of.rs:15:12: 15:27, inferred_ty: *const dyn std::marker::Send
-| 8: user_ty: Canonical { max_universe: U0, variables: [], value: Ty(*const [i32]) }, span: $DIR/address-of.rs:16:12: 16:24, inferred_ty: *const [i32]
-| 9: user_ty: Canonical { max_universe: U0, variables: [], value: Ty(*const [i32]) }, span: $DIR/address-of.rs:16:12: 16:24, inferred_ty: *const [i32]
-| 10: user_ty: Canonical { max_universe: U0, variables: [CanonicalVarInfo { kind: Ty(General(U0)) }], value: Ty(*const ^0) }, span: $DIR/address-of.rs:18:5: 18:18, inferred_ty: *const [i32; 10]
-| 11: user_ty: Canonical { max_universe: U0, variables: [CanonicalVarInfo { kind: Region(U0) }], value: Ty(*const dyn std::marker::Send) }, span: $DIR/address-of.rs:20:5: 20:25, inferred_ty: *const dyn std::marker::Send
-| 12: user_ty: Canonical { max_universe: U0, variables: [CanonicalVarInfo { kind: Ty(General(U0)) }], value: Ty(*const ^0) }, span: $DIR/address-of.rs:23:12: 23:20, inferred_ty: *const [i32; 10]
-| 13: user_ty: Canonical { max_universe: U0, variables: [CanonicalVarInfo { kind: Ty(General(U0)) }], value: Ty(*const ^0) }, span: $DIR/address-of.rs:23:12: 23:20, inferred_ty: *const [i32; 10]
-| 14: user_ty: Canonical { max_universe: U0, variables: [], value: Ty(*const [i32; 10]) }, span: $DIR/address-of.rs:24:12: 24:28, inferred_ty: *const [i32; 10]
-| 15: user_ty: Canonical { max_universe: U0, variables: [], value: Ty(*const [i32; 10]) }, span: $DIR/address-of.rs:24:12: 24:28, inferred_ty: *const [i32; 10]
-| 16: user_ty: Canonical { max_universe: U0, variables: [CanonicalVarInfo { kind: Region(U0) }], value: Ty(*const dyn std::marker::Send) }, span: $DIR/address-of.rs:25:12: 25:27, inferred_ty: *const dyn std::marker::Send
-| 17: user_ty: Canonical { max_universe: U0, variables: [CanonicalVarInfo { kind: Region(U0) }], value: Ty(*const dyn std::marker::Send) }, span: $DIR/address-of.rs:25:12: 25:27, inferred_ty: *const dyn std::marker::Send
-| 18: user_ty: Canonical { max_universe: U0, variables: [], value: Ty(*const [i32]) }, span: $DIR/address-of.rs:26:12: 26:24, inferred_ty: *const [i32]
-| 19: user_ty: Canonical { max_universe: U0, variables: [], value: Ty(*const [i32]) }, span: $DIR/address-of.rs:26:12: 26:24, inferred_ty: *const [i32]
-| 20: user_ty: Canonical { max_universe: U0, variables: [CanonicalVarInfo { kind: Ty(General(U0)) }], value: Ty(*mut ^0) }, span: $DIR/address-of.rs:28:5: 28:16, inferred_ty: *mut [i32; 10]
-| 21: user_ty: Canonical { max_universe: U0, variables: [CanonicalVarInfo { kind: Region(U0) }], value: Ty(*mut dyn std::marker::Send) }, span: $DIR/address-of.rs:30:5: 30:23, inferred_ty: *mut dyn std::marker::Send
-| 22: user_ty: Canonical { max_universe: U0, variables: [CanonicalVarInfo { kind: Ty(General(U0)) }], value: Ty(*mut ^0) }, span: $DIR/address-of.rs:33:12: 33:18, inferred_ty: *mut [i32; 10]
-| 23: user_ty: Canonical { max_universe: U0, variables: [CanonicalVarInfo { kind: Ty(General(U0)) }], value: Ty(*mut ^0) }, span: $DIR/address-of.rs:33:12: 33:18, inferred_ty: *mut [i32; 10]
-| 24: user_ty: Canonical { max_universe: U0, variables: [], value: Ty(*mut [i32; 10]) }, span: $DIR/address-of.rs:34:12: 34:26, inferred_ty: *mut [i32; 10]
-| 25: user_ty: Canonical { max_universe: U0, variables: [], value: Ty(*mut [i32; 10]) }, span: $DIR/address-of.rs:34:12: 34:26, inferred_ty: *mut [i32; 10]
-| 26: user_ty: Canonical { max_universe: U0, variables: [CanonicalVarInfo { kind: Region(U0) }], value: Ty(*mut dyn std::marker::Send) }, span: $DIR/address-of.rs:35:12: 35:25, inferred_ty: *mut dyn std::marker::Send
-| 27: user_ty: Canonical { max_universe: U0, variables: [CanonicalVarInfo { kind: Region(U0) }], value: Ty(*mut dyn std::marker::Send) }, span: $DIR/address-of.rs:35:12: 35:25, inferred_ty: *mut dyn std::marker::Send
-| 28: user_ty: Canonical { max_universe: U0, variables: [], value: Ty(*mut [i32]) }, span: $DIR/address-of.rs:36:12: 36:22, inferred_ty: *mut [i32]
-| 29: user_ty: Canonical { max_universe: U0, variables: [], value: Ty(*mut [i32]) }, span: $DIR/address-of.rs:36:12: 36:22, inferred_ty: *mut [i32]
+| 0: user_ty: Canonical { max_universe: U0, variables: [CanonicalVarInfo { kind: Ty(General(U0)) }], value: Ty(*const ^0) }, span: $DIR/address_of.rs:7:5: 7:18, inferred_ty: *const [i32; 10]
+| 1: user_ty: Canonical { max_universe: U0, variables: [CanonicalVarInfo { kind: Region(U0) }], value: Ty(*const dyn std::marker::Send) }, span: $DIR/address_of.rs:9:5: 9:25, inferred_ty: *const dyn std::marker::Send
+| 2: user_ty: Canonical { max_universe: U0, variables: [CanonicalVarInfo { kind: Ty(General(U0)) }], value: Ty(*const ^0) }, span: $DIR/address_of.rs:13:12: 13:20, inferred_ty: *const [i32; 10]
+| 3: user_ty: Canonical { max_universe: U0, variables: [CanonicalVarInfo { kind: Ty(General(U0)) }], value: Ty(*const ^0) }, span: $DIR/address_of.rs:13:12: 13:20, inferred_ty: *const [i32; 10]
+| 4: user_ty: Canonical { max_universe: U0, variables: [], value: Ty(*const [i32; 10]) }, span: $DIR/address_of.rs:14:12: 14:28, inferred_ty: *const [i32; 10]
+| 5: user_ty: Canonical { max_universe: U0, variables: [], value: Ty(*const [i32; 10]) }, span: $DIR/address_of.rs:14:12: 14:28, inferred_ty: *const [i32; 10]
+| 6: user_ty: Canonical { max_universe: U0, variables: [CanonicalVarInfo { kind: Region(U0) }], value: Ty(*const dyn std::marker::Send) }, span: $DIR/address_of.rs:15:12: 15:27, inferred_ty: *const dyn std::marker::Send
+| 7: user_ty: Canonical { max_universe: U0, variables: [CanonicalVarInfo { kind: Region(U0) }], value: Ty(*const dyn std::marker::Send) }, span: $DIR/address_of.rs:15:12: 15:27, inferred_ty: *const dyn std::marker::Send
+| 8: user_ty: Canonical { max_universe: U0, variables: [], value: Ty(*const [i32]) }, span: $DIR/address_of.rs:16:12: 16:24, inferred_ty: *const [i32]
+| 9: user_ty: Canonical { max_universe: U0, variables: [], value: Ty(*const [i32]) }, span: $DIR/address_of.rs:16:12: 16:24, inferred_ty: *const [i32]
+| 10: user_ty: Canonical { max_universe: U0, variables: [CanonicalVarInfo { kind: Ty(General(U0)) }], value: Ty(*const ^0) }, span: $DIR/address_of.rs:18:5: 18:18, inferred_ty: *const [i32; 10]
+| 11: user_ty: Canonical { max_universe: U0, variables: [CanonicalVarInfo { kind: Region(U0) }], value: Ty(*const dyn std::marker::Send) }, span: $DIR/address_of.rs:20:5: 20:25, inferred_ty: *const dyn std::marker::Send
+| 12: user_ty: Canonical { max_universe: U0, variables: [CanonicalVarInfo { kind: Ty(General(U0)) }], value: Ty(*const ^0) }, span: $DIR/address_of.rs:23:12: 23:20, inferred_ty: *const [i32; 10]
+| 13: user_ty: Canonical { max_universe: U0, variables: [CanonicalVarInfo { kind: Ty(General(U0)) }], value: Ty(*const ^0) }, span: $DIR/address_of.rs:23:12: 23:20, inferred_ty: *const [i32; 10]
+| 14: user_ty: Canonical { max_universe: U0, variables: [], value: Ty(*const [i32; 10]) }, span: $DIR/address_of.rs:24:12: 24:28, inferred_ty: *const [i32; 10]
+| 15: user_ty: Canonical { max_universe: U0, variables: [], value: Ty(*const [i32; 10]) }, span: $DIR/address_of.rs:24:12: 24:28, inferred_ty: *const [i32; 10]
+| 16: user_ty: Canonical { max_universe: U0, variables: [CanonicalVarInfo { kind: Region(U0) }], value: Ty(*const dyn std::marker::Send) }, span: $DIR/address_of.rs:25:12: 25:27, inferred_ty: *const dyn std::marker::Send
+| 17: user_ty: Canonical { max_universe: U0, variables: [CanonicalVarInfo { kind: Region(U0) }], value: Ty(*const dyn std::marker::Send) }, span: $DIR/address_of.rs:25:12: 25:27, inferred_ty: *const dyn std::marker::Send
+| 18: user_ty: Canonical { max_universe: U0, variables: [], value: Ty(*const [i32]) }, span: $DIR/address_of.rs:26:12: 26:24, inferred_ty: *const [i32]
+| 19: user_ty: Canonical { max_universe: U0, variables: [], value: Ty(*const [i32]) }, span: $DIR/address_of.rs:26:12: 26:24, inferred_ty: *const [i32]
+| 20: user_ty: Canonical { max_universe: U0, variables: [CanonicalVarInfo { kind: Ty(General(U0)) }], value: Ty(*mut ^0) }, span: $DIR/address_of.rs:28:5: 28:16, inferred_ty: *mut [i32; 10]
+| 21: user_ty: Canonical { max_universe: U0, variables: [CanonicalVarInfo { kind: Region(U0) }], value: Ty(*mut dyn std::marker::Send) }, span: $DIR/address_of.rs:30:5: 30:23, inferred_ty: *mut dyn std::marker::Send
+| 22: user_ty: Canonical { max_universe: U0, variables: [CanonicalVarInfo { kind: Ty(General(U0)) }], value: Ty(*mut ^0) }, span: $DIR/address_of.rs:33:12: 33:18, inferred_ty: *mut [i32; 10]
+| 23: user_ty: Canonical { max_universe: U0, variables: [CanonicalVarInfo { kind: Ty(General(U0)) }], value: Ty(*mut ^0) }, span: $DIR/address_of.rs:33:12: 33:18, inferred_ty: *mut [i32; 10]
+| 24: user_ty: Canonical { max_universe: U0, variables: [], value: Ty(*mut [i32; 10]) }, span: $DIR/address_of.rs:34:12: 34:26, inferred_ty: *mut [i32; 10]
+| 25: user_ty: Canonical { max_universe: U0, variables: [], value: Ty(*mut [i32; 10]) }, span: $DIR/address_of.rs:34:12: 34:26, inferred_ty: *mut [i32; 10]
+| 26: user_ty: Canonical { max_universe: U0, variables: [CanonicalVarInfo { kind: Region(U0) }], value: Ty(*mut dyn std::marker::Send) }, span: $DIR/address_of.rs:35:12: 35:25, inferred_ty: *mut dyn std::marker::Send
+| 27: user_ty: Canonical { max_universe: U0, variables: [CanonicalVarInfo { kind: Region(U0) }], value: Ty(*mut dyn std::marker::Send) }, span: $DIR/address_of.rs:35:12: 35:25, inferred_ty: *mut dyn std::marker::Send
+| 28: user_ty: Canonical { max_universe: U0, variables: [], value: Ty(*mut [i32]) }, span: $DIR/address_of.rs:36:12: 36:22, inferred_ty: *mut [i32]
+| 29: user_ty: Canonical { max_universe: U0, variables: [], value: Ty(*mut [i32]) }, span: $DIR/address_of.rs:36:12: 36:22, inferred_ty: *mut [i32]
 |
 fn address_of_reborrow() -> () {
-    let mut _0: ();                      // return place in scope 0 at $DIR/address-of.rs:+0:26: +0:26
-    let _1: &[i32; 10];                  // in scope 0 at $DIR/address-of.rs:+1:9: +1:10
-    let _2: [i32; 10];                   // in scope 0 at $DIR/address-of.rs:+1:14: +1:21
-    let mut _4: [i32; 10];               // in scope 0 at $DIR/address-of.rs:+2:22: +2:29
-    let _5: *const [i32; 10];            // in scope 0 at $DIR/address-of.rs:+4:5: +4:18
-    let mut _6: *const [i32; 10];        // in scope 0 at $DIR/address-of.rs:+4:5: +4:18
-    let _7: *const [i32; 10];            // in scope 0 at $DIR/address-of.rs:+5:5: +5:26
-    let _8: *const dyn std::marker::Send; // in scope 0 at $DIR/address-of.rs:+6:5: +6:25
-    let mut _9: *const dyn std::marker::Send; // in scope 0 at $DIR/address-of.rs:+6:5: +6:25
-    let mut _10: *const [i32; 10];       // in scope 0 at $DIR/address-of.rs:+6:5: +6:6
-    let _11: *const [i32];               // in scope 0 at $DIR/address-of.rs:+7:5: +7:22
-    let mut _12: *const [i32; 10];       // in scope 0 at $DIR/address-of.rs:+7:5: +7:6
-    let _13: *const i32;                 // in scope 0 at $DIR/address-of.rs:+8:5: +8:20
-    let mut _14: *const [i32; 10];       // in scope 0 at $DIR/address-of.rs:+8:5: +8:6
-    let mut _18: *const [i32; 10];       // in scope 0 at $DIR/address-of.rs:+12:30: +12:31
-    let mut _20: *const [i32; 10];       // in scope 0 at $DIR/address-of.rs:+13:27: +13:28
-    let _21: *const [i32; 10];           // in scope 0 at $DIR/address-of.rs:+15:5: +15:18
-    let mut _22: *const [i32; 10];       // in scope 0 at $DIR/address-of.rs:+15:5: +15:18
-    let _23: *const [i32; 10];           // in scope 0 at $DIR/address-of.rs:+16:5: +16:26
-    let _24: *const dyn std::marker::Send; // in scope 0 at $DIR/address-of.rs:+17:5: +17:25
-    let mut _25: *const dyn std::marker::Send; // in scope 0 at $DIR/address-of.rs:+17:5: +17:25
-    let mut _26: *const [i32; 10];       // in scope 0 at $DIR/address-of.rs:+17:5: +17:6
-    let _27: *const [i32];               // in scope 0 at $DIR/address-of.rs:+18:5: +18:22
-    let mut _28: *const [i32; 10];       // in scope 0 at $DIR/address-of.rs:+18:5: +18:6
-    let mut _32: *const [i32; 10];       // in scope 0 at $DIR/address-of.rs:+22:30: +22:31
-    let mut _34: *const [i32; 10];       // in scope 0 at $DIR/address-of.rs:+23:27: +23:28
-    let _35: *mut [i32; 10];             // in scope 0 at $DIR/address-of.rs:+25:5: +25:16
-    let mut _36: *mut [i32; 10];         // in scope 0 at $DIR/address-of.rs:+25:5: +25:16
-    let _37: *mut [i32; 10];             // in scope 0 at $DIR/address-of.rs:+26:5: +26:24
-    let _38: *mut dyn std::marker::Send; // in scope 0 at $DIR/address-of.rs:+27:5: +27:23
-    let mut _39: *mut dyn std::marker::Send; // in scope 0 at $DIR/address-of.rs:+27:5: +27:23
-    let mut _40: *mut [i32; 10];         // in scope 0 at $DIR/address-of.rs:+27:5: +27:6
-    let _41: *mut [i32];                 // in scope 0 at $DIR/address-of.rs:+28:5: +28:20
-    let mut _42: *mut [i32; 10];         // in scope 0 at $DIR/address-of.rs:+28:5: +28:6
-    let mut _46: *mut [i32; 10];         // in scope 0 at $DIR/address-of.rs:+32:28: +32:29
-    let mut _48: *mut [i32; 10];         // in scope 0 at $DIR/address-of.rs:+33:25: +33:26
+    let mut _0: ();                      // return place in scope 0 at $DIR/address_of.rs:+0:26: +0:26
+    let _1: &[i32; 10];                  // in scope 0 at $DIR/address_of.rs:+1:9: +1:10
+    let _2: [i32; 10];                   // in scope 0 at $DIR/address_of.rs:+1:14: +1:21
+    let mut _4: [i32; 10];               // in scope 0 at $DIR/address_of.rs:+2:22: +2:29
+    let _5: *const [i32; 10];            // in scope 0 at $DIR/address_of.rs:+4:5: +4:18
+    let mut _6: *const [i32; 10];        // in scope 0 at $DIR/address_of.rs:+4:5: +4:18
+    let _7: *const [i32; 10];            // in scope 0 at $DIR/address_of.rs:+5:5: +5:26
+    let _8: *const dyn std::marker::Send; // in scope 0 at $DIR/address_of.rs:+6:5: +6:25
+    let mut _9: *const dyn std::marker::Send; // in scope 0 at $DIR/address_of.rs:+6:5: +6:25
+    let mut _10: *const [i32; 10];       // in scope 0 at $DIR/address_of.rs:+6:5: +6:6
+    let _11: *const [i32];               // in scope 0 at $DIR/address_of.rs:+7:5: +7:22
+    let mut _12: *const [i32; 10];       // in scope 0 at $DIR/address_of.rs:+7:5: +7:6
+    let _13: *const i32;                 // in scope 0 at $DIR/address_of.rs:+8:5: +8:20
+    let mut _14: *const [i32; 10];       // in scope 0 at $DIR/address_of.rs:+8:5: +8:6
+    let mut _18: *const [i32; 10];       // in scope 0 at $DIR/address_of.rs:+12:30: +12:31
+    let mut _20: *const [i32; 10];       // in scope 0 at $DIR/address_of.rs:+13:27: +13:28
+    let _21: *const [i32; 10];           // in scope 0 at $DIR/address_of.rs:+15:5: +15:18
+    let mut _22: *const [i32; 10];       // in scope 0 at $DIR/address_of.rs:+15:5: +15:18
+    let _23: *const [i32; 10];           // in scope 0 at $DIR/address_of.rs:+16:5: +16:26
+    let _24: *const dyn std::marker::Send; // in scope 0 at $DIR/address_of.rs:+17:5: +17:25
+    let mut _25: *const dyn std::marker::Send; // in scope 0 at $DIR/address_of.rs:+17:5: +17:25
+    let mut _26: *const [i32; 10];       // in scope 0 at $DIR/address_of.rs:+17:5: +17:6
+    let _27: *const [i32];               // in scope 0 at $DIR/address_of.rs:+18:5: +18:22
+    let mut _28: *const [i32; 10];       // in scope 0 at $DIR/address_of.rs:+18:5: +18:6
+    let mut _32: *const [i32; 10];       // in scope 0 at $DIR/address_of.rs:+22:30: +22:31
+    let mut _34: *const [i32; 10];       // in scope 0 at $DIR/address_of.rs:+23:27: +23:28
+    let _35: *mut [i32; 10];             // in scope 0 at $DIR/address_of.rs:+25:5: +25:16
+    let mut _36: *mut [i32; 10];         // in scope 0 at $DIR/address_of.rs:+25:5: +25:16
+    let _37: *mut [i32; 10];             // in scope 0 at $DIR/address_of.rs:+26:5: +26:24
+    let _38: *mut dyn std::marker::Send; // in scope 0 at $DIR/address_of.rs:+27:5: +27:23
+    let mut _39: *mut dyn std::marker::Send; // in scope 0 at $DIR/address_of.rs:+27:5: +27:23
+    let mut _40: *mut [i32; 10];         // in scope 0 at $DIR/address_of.rs:+27:5: +27:6
+    let _41: *mut [i32];                 // in scope 0 at $DIR/address_of.rs:+28:5: +28:20
+    let mut _42: *mut [i32; 10];         // in scope 0 at $DIR/address_of.rs:+28:5: +28:6
+    let mut _46: *mut [i32; 10];         // in scope 0 at $DIR/address_of.rs:+32:28: +32:29
+    let mut _48: *mut [i32; 10];         // in scope 0 at $DIR/address_of.rs:+33:25: +33:26
     scope 1 {
-        debug y => _1;                   // in scope 1 at $DIR/address-of.rs:+1:9: +1:10
-        let mut _3: &mut [i32; 10];      // in scope 1 at $DIR/address-of.rs:+2:9: +2:14
+        debug y => _1;                   // in scope 1 at $DIR/address_of.rs:+1:9: +1:10
+        let mut _3: &mut [i32; 10];      // in scope 1 at $DIR/address_of.rs:+2:9: +2:14
         scope 2 {
-            debug z => _3;               // in scope 2 at $DIR/address-of.rs:+2:9: +2:14
-            let _15: *const [i32; 10] as UserTypeProjection { base: UserType(2), projs: [] }; // in scope 2 at $DIR/address-of.rs:+10:9: +10:10
+            debug z => _3;               // in scope 2 at $DIR/address_of.rs:+2:9: +2:14
+            let _15: *const [i32; 10] as UserTypeProjection { base: UserType(2), projs: [] }; // in scope 2 at $DIR/address_of.rs:+10:9: +10:10
             scope 3 {
-                debug p => _15;          // in scope 3 at $DIR/address-of.rs:+10:9: +10:10
-                let _16: *const [i32; 10] as UserTypeProjection { base: UserType(4), projs: [] }; // in scope 3 at $DIR/address-of.rs:+11:9: +11:10
+                debug p => _15;          // in scope 3 at $DIR/address_of.rs:+10:9: +10:10
+                let _16: *const [i32; 10] as UserTypeProjection { base: UserType(4), projs: [] }; // in scope 3 at $DIR/address_of.rs:+11:9: +11:10
                 scope 4 {
-                    debug p => _16;      // in scope 4 at $DIR/address-of.rs:+11:9: +11:10
-                    let _17: *const dyn std::marker::Send as UserTypeProjection { base: UserType(6), projs: [] }; // in scope 4 at $DIR/address-of.rs:+12:9: +12:10
+                    debug p => _16;      // in scope 4 at $DIR/address_of.rs:+11:9: +11:10
+                    let _17: *const dyn std::marker::Send as UserTypeProjection { base: UserType(6), projs: [] }; // in scope 4 at $DIR/address_of.rs:+12:9: +12:10
                     scope 5 {
-                        debug p => _17;  // in scope 5 at $DIR/address-of.rs:+12:9: +12:10
-                        let _19: *const [i32] as UserTypeProjection { base: UserType(8), projs: [] }; // in scope 5 at $DIR/address-of.rs:+13:9: +13:10
+                        debug p => _17;  // in scope 5 at $DIR/address_of.rs:+12:9: +12:10
+                        let _19: *const [i32] as UserTypeProjection { base: UserType(8), projs: [] }; // in scope 5 at $DIR/address_of.rs:+13:9: +13:10
                         scope 6 {
-                            debug p => _19; // in scope 6 at $DIR/address-of.rs:+13:9: +13:10
-                            let _29: *const [i32; 10] as UserTypeProjection { base: UserType(12), projs: [] }; // in scope 6 at $DIR/address-of.rs:+20:9: +20:10
+                            debug p => _19; // in scope 6 at $DIR/address_of.rs:+13:9: +13:10
+                            let _29: *const [i32; 10] as UserTypeProjection { base: UserType(12), projs: [] }; // in scope 6 at $DIR/address_of.rs:+20:9: +20:10
                             scope 7 {
-                                debug p => _29; // in scope 7 at $DIR/address-of.rs:+20:9: +20:10
-                                let _30: *const [i32; 10] as UserTypeProjection { base: UserType(14), projs: [] }; // in scope 7 at $DIR/address-of.rs:+21:9: +21:10
+                                debug p => _29; // in scope 7 at $DIR/address_of.rs:+20:9: +20:10
+                                let _30: *const [i32; 10] as UserTypeProjection { base: UserType(14), projs: [] }; // in scope 7 at $DIR/address_of.rs:+21:9: +21:10
                                 scope 8 {
-                                    debug p => _30; // in scope 8 at $DIR/address-of.rs:+21:9: +21:10
-                                    let _31: *const dyn std::marker::Send as UserTypeProjection { base: UserType(16), projs: [] }; // in scope 8 at $DIR/address-of.rs:+22:9: +22:10
+                                    debug p => _30; // in scope 8 at $DIR/address_of.rs:+21:9: +21:10
+                                    let _31: *const dyn std::marker::Send as UserTypeProjection { base: UserType(16), projs: [] }; // in scope 8 at $DIR/address_of.rs:+22:9: +22:10
                                     scope 9 {
-                                        debug p => _31; // in scope 9 at $DIR/address-of.rs:+22:9: +22:10
-                                        let _33: *const [i32] as UserTypeProjection { base: UserType(18), projs: [] }; // in scope 9 at $DIR/address-of.rs:+23:9: +23:10
+                                        debug p => _31; // in scope 9 at $DIR/address_of.rs:+22:9: +22:10
+                                        let _33: *const [i32] as UserTypeProjection { base: UserType(18), projs: [] }; // in scope 9 at $DIR/address_of.rs:+23:9: +23:10
                                         scope 10 {
-                                            debug p => _33; // in scope 10 at $DIR/address-of.rs:+23:9: +23:10
-                                            let _43: *mut [i32; 10] as UserTypeProjection { base: UserType(22), projs: [] }; // in scope 10 at $DIR/address-of.rs:+30:9: +30:10
+                                            debug p => _33; // in scope 10 at $DIR/address_of.rs:+23:9: +23:10
+                                            let _43: *mut [i32; 10] as UserTypeProjection { base: UserType(22), projs: [] }; // in scope 10 at $DIR/address_of.rs:+30:9: +30:10
                                             scope 11 {
-                                                debug p => _43; // in scope 11 at $DIR/address-of.rs:+30:9: +30:10
-                                                let _44: *mut [i32; 10] as UserTypeProjection { base: UserType(24), projs: [] }; // in scope 11 at $DIR/address-of.rs:+31:9: +31:10
+                                                debug p => _43; // in scope 11 at $DIR/address_of.rs:+30:9: +30:10
+                                                let _44: *mut [i32; 10] as UserTypeProjection { base: UserType(24), projs: [] }; // in scope 11 at $DIR/address_of.rs:+31:9: +31:10
                                                 scope 12 {
-                                                    debug p => _44; // in scope 12 at $DIR/address-of.rs:+31:9: +31:10
-                                                    let _45: *mut dyn std::marker::Send as UserTypeProjection { base: UserType(26), projs: [] }; // in scope 12 at $DIR/address-of.rs:+32:9: +32:10
+                                                    debug p => _44; // in scope 12 at $DIR/address_of.rs:+31:9: +31:10
+                                                    let _45: *mut dyn std::marker::Send as UserTypeProjection { base: UserType(26), projs: [] }; // in scope 12 at $DIR/address_of.rs:+32:9: +32:10
                                                     scope 13 {
-                                                        debug p => _45; // in scope 13 at $DIR/address-of.rs:+32:9: +32:10
-                                                        let _47: *mut [i32] as UserTypeProjection { base: UserType(28), projs: [] }; // in scope 13 at $DIR/address-of.rs:+33:9: +33:10
+                                                        debug p => _45; // in scope 13 at $DIR/address_of.rs:+32:9: +32:10
+                                                        let _47: *mut [i32] as UserTypeProjection { base: UserType(28), projs: [] }; // in scope 13 at $DIR/address_of.rs:+33:9: +33:10
                                                         scope 14 {
-                                                            debug p => _47; // in scope 14 at $DIR/address-of.rs:+33:9: +33:10
+                                                            debug p => _47; // in scope 14 at $DIR/address_of.rs:+33:9: +33:10
                                                         }
                                                     }
                                                 }
@@ -126,183 +126,183 @@ fn address_of_reborrow() -> () {
     }
 
     bb0: {
-        StorageLive(_1);                 // scope 0 at $DIR/address-of.rs:+1:9: +1:10
-        StorageLive(_2);                 // scope 0 at $DIR/address-of.rs:+1:14: +1:21
-        _2 = [const 0_i32; 10];          // scope 0 at $DIR/address-of.rs:+1:14: +1:21
-        _1 = &_2;                        // scope 0 at $DIR/address-of.rs:+1:13: +1:21
-        FakeRead(ForLet(None), _1);      // scope 0 at $DIR/address-of.rs:+1:9: +1:10
-        StorageLive(_3);                 // scope 1 at $DIR/address-of.rs:+2:9: +2:14
-        StorageLive(_4);                 // scope 1 at $DIR/address-of.rs:+2:22: +2:29
-        _4 = [const 0_i32; 10];          // scope 1 at $DIR/address-of.rs:+2:22: +2:29
-        _3 = &mut _4;                    // scope 1 at $DIR/address-of.rs:+2:17: +2:29
-        FakeRead(ForLet(None), _3);      // scope 1 at $DIR/address-of.rs:+2:9: +2:14
-        StorageLive(_5);                 // scope 2 at $DIR/address-of.rs:+4:5: +4:18
-        StorageLive(_6);                 // scope 2 at $DIR/address-of.rs:+4:5: +4:18
-        _6 = &raw const (*_1);           // scope 2 at $DIR/address-of.rs:+4:5: +4:6
-        AscribeUserType(_6, o, UserTypeProjection { base: UserType(0), projs: [] }); // scope 2 at $DIR/address-of.rs:+4:5: +4:18
-        _5 = _6;                         // scope 2 at $DIR/address-of.rs:+4:5: +4:18
-        StorageDead(_6);                 // scope 2 at $DIR/address-of.rs:+4:18: +4:19
-        StorageDead(_5);                 // scope 2 at $DIR/address-of.rs:+4:18: +4:19
-        StorageLive(_7);                 // scope 2 at $DIR/address-of.rs:+5:5: +5:26
-        _7 = &raw const (*_1);           // scope 2 at $DIR/address-of.rs:+5:5: +5:6
-        StorageDead(_7);                 // scope 2 at $DIR/address-of.rs:+5:26: +5:27
-        StorageLive(_8);                 // scope 2 at $DIR/address-of.rs:+6:5: +6:25
-        StorageLive(_9);                 // scope 2 at $DIR/address-of.rs:+6:5: +6:25
-        StorageLive(_10);                // scope 2 at $DIR/address-of.rs:+6:5: +6:6
-        _10 = &raw const (*_1);          // scope 2 at $DIR/address-of.rs:+6:5: +6:6
-        _9 = move _10 as *const dyn std::marker::Send (Pointer(Unsize)); // scope 2 at $DIR/address-of.rs:+6:5: +6:6
-        StorageDead(_10);                // scope 2 at $DIR/address-of.rs:+6:5: +6:6
-        AscribeUserType(_9, o, UserTypeProjection { base: UserType(1), projs: [] }); // scope 2 at $DIR/address-of.rs:+6:5: +6:25
-        _8 = _9;                         // scope 2 at $DIR/address-of.rs:+6:5: +6:25
-        StorageDead(_9);                 // scope 2 at $DIR/address-of.rs:+6:25: +6:26
-        StorageDead(_8);                 // scope 2 at $DIR/address-of.rs:+6:25: +6:26
-        StorageLive(_11);                // scope 2 at $DIR/address-of.rs:+7:5: +7:22
-        StorageLive(_12);                // scope 2 at $DIR/address-of.rs:+7:5: +7:6
-        _12 = &raw const (*_1);          // scope 2 at $DIR/address-of.rs:+7:5: +7:6
-        _11 = move _12 as *const [i32] (Pointer(Unsize)); // scope 2 at $DIR/address-of.rs:+7:5: +7:6
-        StorageDead(_12);                // scope 2 at $DIR/address-of.rs:+7:5: +7:6
-        StorageDead(_11);                // scope 2 at $DIR/address-of.rs:+7:22: +7:23
-        StorageLive(_13);                // scope 2 at $DIR/address-of.rs:+8:5: +8:20
-        StorageLive(_14);                // scope 2 at $DIR/address-of.rs:+8:5: +8:6
-        _14 = &raw const (*_1);          // scope 2 at $DIR/address-of.rs:+8:5: +8:6
-        _13 = move _14 as *const i32 (Pointer(ArrayToPointer)); // scope 2 at $DIR/address-of.rs:+8:5: +8:20
-        StorageDead(_14);                // scope 2 at $DIR/address-of.rs:+8:19: +8:20
-        StorageDead(_13);                // scope 2 at $DIR/address-of.rs:+8:20: +8:21
-        StorageLive(_15);                // scope 2 at $DIR/address-of.rs:+10:9: +10:10
-        _15 = &raw const (*_1);          // scope 2 at $DIR/address-of.rs:+10:23: +10:24
-        FakeRead(ForLet(None), _15);     // scope 2 at $DIR/address-of.rs:+10:9: +10:10
-        AscribeUserType(_15, o, UserTypeProjection { base: UserType(3), projs: [] }); // scope 2 at $DIR/address-of.rs:+10:12: +10:20
-        StorageLive(_16);                // scope 3 at $DIR/address-of.rs:+11:9: +11:10
-        _16 = &raw const (*_1);          // scope 3 at $DIR/address-of.rs:+11:31: +11:32
-        FakeRead(ForLet(None), _16);     // scope 3 at $DIR/address-of.rs:+11:9: +11:10
-        AscribeUserType(_16, o, UserTypeProjection { base: UserType(5), projs: [] }); // scope 3 at $DIR/address-of.rs:+11:12: +11:28
-        StorageLive(_17);                // scope 4 at $DIR/address-of.rs:+12:9: +12:10
-        StorageLive(_18);                // scope 4 at $DIR/address-of.rs:+12:30: +12:31
-        _18 = &raw const (*_1);          // scope 4 at $DIR/address-of.rs:+12:30: +12:31
-        _17 = move _18 as *const dyn std::marker::Send (Pointer(Unsize)); // scope 4 at $DIR/address-of.rs:+12:30: +12:31
-        StorageDead(_18);                // scope 4 at $DIR/address-of.rs:+12:30: +12:31
-        FakeRead(ForLet(None), _17);     // scope 4 at $DIR/address-of.rs:+12:9: +12:10
-        AscribeUserType(_17, o, UserTypeProjection { base: UserType(7), projs: [] }); // scope 4 at $DIR/address-of.rs:+12:12: +12:27
-        StorageLive(_19);                // scope 5 at $DIR/address-of.rs:+13:9: +13:10
-        StorageLive(_20);                // scope 5 at $DIR/address-of.rs:+13:27: +13:28
-        _20 = &raw const (*_1);          // scope 5 at $DIR/address-of.rs:+13:27: +13:28
-        _19 = move _20 as *const [i32] (Pointer(Unsize)); // scope 5 at $DIR/address-of.rs:+13:27: +13:28
-        StorageDead(_20);                // scope 5 at $DIR/address-of.rs:+13:27: +13:28
-        FakeRead(ForLet(None), _19);     // scope 5 at $DIR/address-of.rs:+13:9: +13:10
-        AscribeUserType(_19, o, UserTypeProjection { base: UserType(9), projs: [] }); // scope 5 at $DIR/address-of.rs:+13:12: +13:24
-        StorageLive(_21);                // scope 6 at $DIR/address-of.rs:+15:5: +15:18
-        StorageLive(_22);                // scope 6 at $DIR/address-of.rs:+15:5: +15:18
-        _22 = &raw const (*_3);          // scope 6 at $DIR/address-of.rs:+15:5: +15:6
-        AscribeUserType(_22, o, UserTypeProjection { base: UserType(10), projs: [] }); // scope 6 at $DIR/address-of.rs:+15:5: +15:18
-        _21 = _22;                       // scope 6 at $DIR/address-of.rs:+15:5: +15:18
-        StorageDead(_22);                // scope 6 at $DIR/address-of.rs:+15:18: +15:19
-        StorageDead(_21);                // scope 6 at $DIR/address-of.rs:+15:18: +15:19
-        StorageLive(_23);                // scope 6 at $DIR/address-of.rs:+16:5: +16:26
-        _23 = &raw const (*_3);          // scope 6 at $DIR/address-of.rs:+16:5: +16:6
-        StorageDead(_23);                // scope 6 at $DIR/address-of.rs:+16:26: +16:27
-        StorageLive(_24);                // scope 6 at $DIR/address-of.rs:+17:5: +17:25
-        StorageLive(_25);                // scope 6 at $DIR/address-of.rs:+17:5: +17:25
-        StorageLive(_26);                // scope 6 at $DIR/address-of.rs:+17:5: +17:6
-        _26 = &raw const (*_3);          // scope 6 at $DIR/address-of.rs:+17:5: +17:6
-        _25 = move _26 as *const dyn std::marker::Send (Pointer(Unsize)); // scope 6 at $DIR/address-of.rs:+17:5: +17:6
-        StorageDead(_26);                // scope 6 at $DIR/address-of.rs:+17:5: +17:6
-        AscribeUserType(_25, o, UserTypeProjection { base: UserType(11), projs: [] }); // scope 6 at $DIR/address-of.rs:+17:5: +17:25
-        _24 = _25;                       // scope 6 at $DIR/address-of.rs:+17:5: +17:25
-        StorageDead(_25);                // scope 6 at $DIR/address-of.rs:+17:25: +17:26
-        StorageDead(_24);                // scope 6 at $DIR/address-of.rs:+17:25: +17:26
-        StorageLive(_27);                // scope 6 at $DIR/address-of.rs:+18:5: +18:22
-        StorageLive(_28);                // scope 6 at $DIR/address-of.rs:+18:5: +18:6
-        _28 = &raw const (*_3);          // scope 6 at $DIR/address-of.rs:+18:5: +18:6
-        _27 = move _28 as *const [i32] (Pointer(Unsize)); // scope 6 at $DIR/address-of.rs:+18:5: +18:6
-        StorageDead(_28);                // scope 6 at $DIR/address-of.rs:+18:5: +18:6
-        StorageDead(_27);                // scope 6 at $DIR/address-of.rs:+18:22: +18:23
-        StorageLive(_29);                // scope 6 at $DIR/address-of.rs:+20:9: +20:10
-        _29 = &raw const (*_3);          // scope 6 at $DIR/address-of.rs:+20:23: +20:24
-        FakeRead(ForLet(None), _29);     // scope 6 at $DIR/address-of.rs:+20:9: +20:10
-        AscribeUserType(_29, o, UserTypeProjection { base: UserType(13), projs: [] }); // scope 6 at $DIR/address-of.rs:+20:12: +20:20
-        StorageLive(_30);                // scope 7 at $DIR/address-of.rs:+21:9: +21:10
-        _30 = &raw const (*_3);          // scope 7 at $DIR/address-of.rs:+21:31: +21:32
-        FakeRead(ForLet(None), _30);     // scope 7 at $DIR/address-of.rs:+21:9: +21:10
-        AscribeUserType(_30, o, UserTypeProjection { base: UserType(15), projs: [] }); // scope 7 at $DIR/address-of.rs:+21:12: +21:28
-        StorageLive(_31);                // scope 8 at $DIR/address-of.rs:+22:9: +22:10
-        StorageLive(_32);                // scope 8 at $DIR/address-of.rs:+22:30: +22:31
-        _32 = &raw const (*_3);          // scope 8 at $DIR/address-of.rs:+22:30: +22:31
-        _31 = move _32 as *const dyn std::marker::Send (Pointer(Unsize)); // scope 8 at $DIR/address-of.rs:+22:30: +22:31
-        StorageDead(_32);                // scope 8 at $DIR/address-of.rs:+22:30: +22:31
-        FakeRead(ForLet(None), _31);     // scope 8 at $DIR/address-of.rs:+22:9: +22:10
-        AscribeUserType(_31, o, UserTypeProjection { base: UserType(17), projs: [] }); // scope 8 at $DIR/address-of.rs:+22:12: +22:27
-        StorageLive(_33);                // scope 9 at $DIR/address-of.rs:+23:9: +23:10
-        StorageLive(_34);                // scope 9 at $DIR/address-of.rs:+23:27: +23:28
-        _34 = &raw const (*_3);          // scope 9 at $DIR/address-of.rs:+23:27: +23:28
-        _33 = move _34 as *const [i32] (Pointer(Unsize)); // scope 9 at $DIR/address-of.rs:+23:27: +23:28
-        StorageDead(_34);                // scope 9 at $DIR/address-of.rs:+23:27: +23:28
-        FakeRead(ForLet(None), _33);     // scope 9 at $DIR/address-of.rs:+23:9: +23:10
-        AscribeUserType(_33, o, UserTypeProjection { base: UserType(19), projs: [] }); // scope 9 at $DIR/address-of.rs:+23:12: +23:24
-        StorageLive(_35);                // scope 10 at $DIR/address-of.rs:+25:5: +25:16
-        StorageLive(_36);                // scope 10 at $DIR/address-of.rs:+25:5: +25:16
-        _36 = &raw mut (*_3);            // scope 10 at $DIR/address-of.rs:+25:5: +25:6
-        AscribeUserType(_36, o, UserTypeProjection { base: UserType(20), projs: [] }); // scope 10 at $DIR/address-of.rs:+25:5: +25:16
-        _35 = _36;                       // scope 10 at $DIR/address-of.rs:+25:5: +25:16
-        StorageDead(_36);                // scope 10 at $DIR/address-of.rs:+25:16: +25:17
-        StorageDead(_35);                // scope 10 at $DIR/address-of.rs:+25:16: +25:17
-        StorageLive(_37);                // scope 10 at $DIR/address-of.rs:+26:5: +26:24
-        _37 = &raw mut (*_3);            // scope 10 at $DIR/address-of.rs:+26:5: +26:6
-        StorageDead(_37);                // scope 10 at $DIR/address-of.rs:+26:24: +26:25
-        StorageLive(_38);                // scope 10 at $DIR/address-of.rs:+27:5: +27:23
-        StorageLive(_39);                // scope 10 at $DIR/address-of.rs:+27:5: +27:23
-        StorageLive(_40);                // scope 10 at $DIR/address-of.rs:+27:5: +27:6
-        _40 = &raw mut (*_3);            // scope 10 at $DIR/address-of.rs:+27:5: +27:6
-        _39 = move _40 as *mut dyn std::marker::Send (Pointer(Unsize)); // scope 10 at $DIR/address-of.rs:+27:5: +27:6
-        StorageDead(_40);                // scope 10 at $DIR/address-of.rs:+27:5: +27:6
-        AscribeUserType(_39, o, UserTypeProjection { base: UserType(21), projs: [] }); // scope 10 at $DIR/address-of.rs:+27:5: +27:23
-        _38 = _39;                       // scope 10 at $DIR/address-of.rs:+27:5: +27:23
-        StorageDead(_39);                // scope 10 at $DIR/address-of.rs:+27:23: +27:24
-        StorageDead(_38);                // scope 10 at $DIR/address-of.rs:+27:23: +27:24
-        StorageLive(_41);                // scope 10 at $DIR/address-of.rs:+28:5: +28:20
-        StorageLive(_42);                // scope 10 at $DIR/address-of.rs:+28:5: +28:6
-        _42 = &raw mut (*_3);            // scope 10 at $DIR/address-of.rs:+28:5: +28:6
-        _41 = move _42 as *mut [i32] (Pointer(Unsize)); // scope 10 at $DIR/address-of.rs:+28:5: +28:6
-        StorageDead(_42);                // scope 10 at $DIR/address-of.rs:+28:5: +28:6
-        StorageDead(_41);                // scope 10 at $DIR/address-of.rs:+28:20: +28:21
-        StorageLive(_43);                // scope 10 at $DIR/address-of.rs:+30:9: +30:10
-        _43 = &raw mut (*_3);            // scope 10 at $DIR/address-of.rs:+30:21: +30:22
-        FakeRead(ForLet(None), _43);     // scope 10 at $DIR/address-of.rs:+30:9: +30:10
-        AscribeUserType(_43, o, UserTypeProjection { base: UserType(23), projs: [] }); // scope 10 at $DIR/address-of.rs:+30:12: +30:18
-        StorageLive(_44);                // scope 11 at $DIR/address-of.rs:+31:9: +31:10
-        _44 = &raw mut (*_3);            // scope 11 at $DIR/address-of.rs:+31:29: +31:30
-        FakeRead(ForLet(None), _44);     // scope 11 at $DIR/address-of.rs:+31:9: +31:10
-        AscribeUserType(_44, o, UserTypeProjection { base: UserType(25), projs: [] }); // scope 11 at $DIR/address-of.rs:+31:12: +31:26
-        StorageLive(_45);                // scope 12 at $DIR/address-of.rs:+32:9: +32:10
-        StorageLive(_46);                // scope 12 at $DIR/address-of.rs:+32:28: +32:29
-        _46 = &raw mut (*_3);            // scope 12 at $DIR/address-of.rs:+32:28: +32:29
-        _45 = move _46 as *mut dyn std::marker::Send (Pointer(Unsize)); // scope 12 at $DIR/address-of.rs:+32:28: +32:29
-        StorageDead(_46);                // scope 12 at $DIR/address-of.rs:+32:28: +32:29
-        FakeRead(ForLet(None), _45);     // scope 12 at $DIR/address-of.rs:+32:9: +32:10
-        AscribeUserType(_45, o, UserTypeProjection { base: UserType(27), projs: [] }); // scope 12 at $DIR/address-of.rs:+32:12: +32:25
-        StorageLive(_47);                // scope 13 at $DIR/address-of.rs:+33:9: +33:10
-        StorageLive(_48);                // scope 13 at $DIR/address-of.rs:+33:25: +33:26
-        _48 = &raw mut (*_3);            // scope 13 at $DIR/address-of.rs:+33:25: +33:26
-        _47 = move _48 as *mut [i32] (Pointer(Unsize)); // scope 13 at $DIR/address-of.rs:+33:25: +33:26
-        StorageDead(_48);                // scope 13 at $DIR/address-of.rs:+33:25: +33:26
-        FakeRead(ForLet(None), _47);     // scope 13 at $DIR/address-of.rs:+33:9: +33:10
-        AscribeUserType(_47, o, UserTypeProjection { base: UserType(29), projs: [] }); // scope 13 at $DIR/address-of.rs:+33:12: +33:22
-        _0 = const ();                   // scope 0 at $DIR/address-of.rs:+0:26: +34:2
-        StorageDead(_47);                // scope 13 at $DIR/address-of.rs:+34:1: +34:2
-        StorageDead(_45);                // scope 12 at $DIR/address-of.rs:+34:1: +34:2
-        StorageDead(_44);                // scope 11 at $DIR/address-of.rs:+34:1: +34:2
-        StorageDead(_43);                // scope 10 at $DIR/address-of.rs:+34:1: +34:2
-        StorageDead(_33);                // scope 9 at $DIR/address-of.rs:+34:1: +34:2
-        StorageDead(_31);                // scope 8 at $DIR/address-of.rs:+34:1: +34:2
-        StorageDead(_30);                // scope 7 at $DIR/address-of.rs:+34:1: +34:2
-        StorageDead(_29);                // scope 6 at $DIR/address-of.rs:+34:1: +34:2
-        StorageDead(_19);                // scope 5 at $DIR/address-of.rs:+34:1: +34:2
-        StorageDead(_17);                // scope 4 at $DIR/address-of.rs:+34:1: +34:2
-        StorageDead(_16);                // scope 3 at $DIR/address-of.rs:+34:1: +34:2
-        StorageDead(_15);                // scope 2 at $DIR/address-of.rs:+34:1: +34:2
-        StorageDead(_4);                 // scope 1 at $DIR/address-of.rs:+34:1: +34:2
-        StorageDead(_3);                 // scope 1 at $DIR/address-of.rs:+34:1: +34:2
-        StorageDead(_2);                 // scope 0 at $DIR/address-of.rs:+34:1: +34:2
-        StorageDead(_1);                 // scope 0 at $DIR/address-of.rs:+34:1: +34:2
-        return;                          // scope 0 at $DIR/address-of.rs:+34:2: +34:2
+        StorageLive(_1);                 // scope 0 at $DIR/address_of.rs:+1:9: +1:10
+        StorageLive(_2);                 // scope 0 at $DIR/address_of.rs:+1:14: +1:21
+        _2 = [const 0_i32; 10];          // scope 0 at $DIR/address_of.rs:+1:14: +1:21
+        _1 = &_2;                        // scope 0 at $DIR/address_of.rs:+1:13: +1:21
+        FakeRead(ForLet(None), _1);      // scope 0 at $DIR/address_of.rs:+1:9: +1:10
+        StorageLive(_3);                 // scope 1 at $DIR/address_of.rs:+2:9: +2:14
+        StorageLive(_4);                 // scope 1 at $DIR/address_of.rs:+2:22: +2:29
+        _4 = [const 0_i32; 10];          // scope 1 at $DIR/address_of.rs:+2:22: +2:29
+        _3 = &mut _4;                    // scope 1 at $DIR/address_of.rs:+2:17: +2:29
+        FakeRead(ForLet(None), _3);      // scope 1 at $DIR/address_of.rs:+2:9: +2:14
+        StorageLive(_5);                 // scope 2 at $DIR/address_of.rs:+4:5: +4:18
+        StorageLive(_6);                 // scope 2 at $DIR/address_of.rs:+4:5: +4:18
+        _6 = &raw const (*_1);           // scope 2 at $DIR/address_of.rs:+4:5: +4:6
+        AscribeUserType(_6, o, UserTypeProjection { base: UserType(0), projs: [] }); // scope 2 at $DIR/address_of.rs:+4:5: +4:18
+        _5 = _6;                         // scope 2 at $DIR/address_of.rs:+4:5: +4:18
+        StorageDead(_6);                 // scope 2 at $DIR/address_of.rs:+4:18: +4:19
+        StorageDead(_5);                 // scope 2 at $DIR/address_of.rs:+4:18: +4:19
+        StorageLive(_7);                 // scope 2 at $DIR/address_of.rs:+5:5: +5:26
+        _7 = &raw const (*_1);           // scope 2 at $DIR/address_of.rs:+5:5: +5:6
+        StorageDead(_7);                 // scope 2 at $DIR/address_of.rs:+5:26: +5:27
+        StorageLive(_8);                 // scope 2 at $DIR/address_of.rs:+6:5: +6:25
+        StorageLive(_9);                 // scope 2 at $DIR/address_of.rs:+6:5: +6:25
+        StorageLive(_10);                // scope 2 at $DIR/address_of.rs:+6:5: +6:6
+        _10 = &raw const (*_1);          // scope 2 at $DIR/address_of.rs:+6:5: +6:6
+        _9 = move _10 as *const dyn std::marker::Send (Pointer(Unsize)); // scope 2 at $DIR/address_of.rs:+6:5: +6:6
+        StorageDead(_10);                // scope 2 at $DIR/address_of.rs:+6:5: +6:6
+        AscribeUserType(_9, o, UserTypeProjection { base: UserType(1), projs: [] }); // scope 2 at $DIR/address_of.rs:+6:5: +6:25
+        _8 = _9;                         // scope 2 at $DIR/address_of.rs:+6:5: +6:25
+        StorageDead(_9);                 // scope 2 at $DIR/address_of.rs:+6:25: +6:26
+        StorageDead(_8);                 // scope 2 at $DIR/address_of.rs:+6:25: +6:26
+        StorageLive(_11);                // scope 2 at $DIR/address_of.rs:+7:5: +7:22
+        StorageLive(_12);                // scope 2 at $DIR/address_of.rs:+7:5: +7:6
+        _12 = &raw const (*_1);          // scope 2 at $DIR/address_of.rs:+7:5: +7:6
+        _11 = move _12 as *const [i32] (Pointer(Unsize)); // scope 2 at $DIR/address_of.rs:+7:5: +7:6
+        StorageDead(_12);                // scope 2 at $DIR/address_of.rs:+7:5: +7:6
+        StorageDead(_11);                // scope 2 at $DIR/address_of.rs:+7:22: +7:23
+        StorageLive(_13);                // scope 2 at $DIR/address_of.rs:+8:5: +8:20
+        StorageLive(_14);                // scope 2 at $DIR/address_of.rs:+8:5: +8:6
+        _14 = &raw const (*_1);          // scope 2 at $DIR/address_of.rs:+8:5: +8:6
+        _13 = move _14 as *const i32 (Pointer(ArrayToPointer)); // scope 2 at $DIR/address_of.rs:+8:5: +8:20
+        StorageDead(_14);                // scope 2 at $DIR/address_of.rs:+8:19: +8:20
+        StorageDead(_13);                // scope 2 at $DIR/address_of.rs:+8:20: +8:21
+        StorageLive(_15);                // scope 2 at $DIR/address_of.rs:+10:9: +10:10
+        _15 = &raw const (*_1);          // scope 2 at $DIR/address_of.rs:+10:23: +10:24
+        FakeRead(ForLet(None), _15);     // scope 2 at $DIR/address_of.rs:+10:9: +10:10
+        AscribeUserType(_15, o, UserTypeProjection { base: UserType(3), projs: [] }); // scope 2 at $DIR/address_of.rs:+10:12: +10:20
+        StorageLive(_16);                // scope 3 at $DIR/address_of.rs:+11:9: +11:10
+        _16 = &raw const (*_1);          // scope 3 at $DIR/address_of.rs:+11:31: +11:32
+        FakeRead(ForLet(None), _16);     // scope 3 at $DIR/address_of.rs:+11:9: +11:10
+        AscribeUserType(_16, o, UserTypeProjection { base: UserType(5), projs: [] }); // scope 3 at $DIR/address_of.rs:+11:12: +11:28
+        StorageLive(_17);                // scope 4 at $DIR/address_of.rs:+12:9: +12:10
+        StorageLive(_18);                // scope 4 at $DIR/address_of.rs:+12:30: +12:31
+        _18 = &raw const (*_1);          // scope 4 at $DIR/address_of.rs:+12:30: +12:31
+        _17 = move _18 as *const dyn std::marker::Send (Pointer(Unsize)); // scope 4 at $DIR/address_of.rs:+12:30: +12:31
+        StorageDead(_18);                // scope 4 at $DIR/address_of.rs:+12:30: +12:31
+        FakeRead(ForLet(None), _17);     // scope 4 at $DIR/address_of.rs:+12:9: +12:10
+        AscribeUserType(_17, o, UserTypeProjection { base: UserType(7), projs: [] }); // scope 4 at $DIR/address_of.rs:+12:12: +12:27
+        StorageLive(_19);                // scope 5 at $DIR/address_of.rs:+13:9: +13:10
+        StorageLive(_20);                // scope 5 at $DIR/address_of.rs:+13:27: +13:28
+        _20 = &raw const (*_1);          // scope 5 at $DIR/address_of.rs:+13:27: +13:28
+        _19 = move _20 as *const [i32] (Pointer(Unsize)); // scope 5 at $DIR/address_of.rs:+13:27: +13:28
+        StorageDead(_20);                // scope 5 at $DIR/address_of.rs:+13:27: +13:28
+        FakeRead(ForLet(None), _19);     // scope 5 at $DIR/address_of.rs:+13:9: +13:10
+        AscribeUserType(_19, o, UserTypeProjection { base: UserType(9), projs: [] }); // scope 5 at $DIR/address_of.rs:+13:12: +13:24
+        StorageLive(_21);                // scope 6 at $DIR/address_of.rs:+15:5: +15:18
+        StorageLive(_22);                // scope 6 at $DIR/address_of.rs:+15:5: +15:18
+        _22 = &raw const (*_3);          // scope 6 at $DIR/address_of.rs:+15:5: +15:6
+        AscribeUserType(_22, o, UserTypeProjection { base: UserType(10), projs: [] }); // scope 6 at $DIR/address_of.rs:+15:5: +15:18
+        _21 = _22;                       // scope 6 at $DIR/address_of.rs:+15:5: +15:18
+        StorageDead(_22);                // scope 6 at $DIR/address_of.rs:+15:18: +15:19
+        StorageDead(_21);                // scope 6 at $DIR/address_of.rs:+15:18: +15:19
+        StorageLive(_23);                // scope 6 at $DIR/address_of.rs:+16:5: +16:26
+        _23 = &raw const (*_3);          // scope 6 at $DIR/address_of.rs:+16:5: +16:6
+        StorageDead(_23);                // scope 6 at $DIR/address_of.rs:+16:26: +16:27
+        StorageLive(_24);                // scope 6 at $DIR/address_of.rs:+17:5: +17:25
+        StorageLive(_25);                // scope 6 at $DIR/address_of.rs:+17:5: +17:25
+        StorageLive(_26);                // scope 6 at $DIR/address_of.rs:+17:5: +17:6
+        _26 = &raw const (*_3);          // scope 6 at $DIR/address_of.rs:+17:5: +17:6
+        _25 = move _26 as *const dyn std::marker::Send (Pointer(Unsize)); // scope 6 at $DIR/address_of.rs:+17:5: +17:6
+        StorageDead(_26);                // scope 6 at $DIR/address_of.rs:+17:5: +17:6
+        AscribeUserType(_25, o, UserTypeProjection { base: UserType(11), projs: [] }); // scope 6 at $DIR/address_of.rs:+17:5: +17:25
+        _24 = _25;                       // scope 6 at $DIR/address_of.rs:+17:5: +17:25
+        StorageDead(_25);                // scope 6 at $DIR/address_of.rs:+17:25: +17:26
+        StorageDead(_24);                // scope 6 at $DIR/address_of.rs:+17:25: +17:26
+        StorageLive(_27);                // scope 6 at $DIR/address_of.rs:+18:5: +18:22
+        StorageLive(_28);                // scope 6 at $DIR/address_of.rs:+18:5: +18:6
+        _28 = &raw const (*_3);          // scope 6 at $DIR/address_of.rs:+18:5: +18:6
+        _27 = move _28 as *const [i32] (Pointer(Unsize)); // scope 6 at $DIR/address_of.rs:+18:5: +18:6
+        StorageDead(_28);                // scope 6 at $DIR/address_of.rs:+18:5: +18:6
+        StorageDead(_27);                // scope 6 at $DIR/address_of.rs:+18:22: +18:23
+        StorageLive(_29);                // scope 6 at $DIR/address_of.rs:+20:9: +20:10
+        _29 = &raw const (*_3);          // scope 6 at $DIR/address_of.rs:+20:23: +20:24
+        FakeRead(ForLet(None), _29);     // scope 6 at $DIR/address_of.rs:+20:9: +20:10
+        AscribeUserType(_29, o, UserTypeProjection { base: UserType(13), projs: [] }); // scope 6 at $DIR/address_of.rs:+20:12: +20:20
+        StorageLive(_30);                // scope 7 at $DIR/address_of.rs:+21:9: +21:10
+        _30 = &raw const (*_3);          // scope 7 at $DIR/address_of.rs:+21:31: +21:32
+        FakeRead(ForLet(None), _30);     // scope 7 at $DIR/address_of.rs:+21:9: +21:10
+        AscribeUserType(_30, o, UserTypeProjection { base: UserType(15), projs: [] }); // scope 7 at $DIR/address_of.rs:+21:12: +21:28
+        StorageLive(_31);                // scope 8 at $DIR/address_of.rs:+22:9: +22:10
+        StorageLive(_32);                // scope 8 at $DIR/address_of.rs:+22:30: +22:31
+        _32 = &raw const (*_3);          // scope 8 at $DIR/address_of.rs:+22:30: +22:31
+        _31 = move _32 as *const dyn std::marker::Send (Pointer(Unsize)); // scope 8 at $DIR/address_of.rs:+22:30: +22:31
+        StorageDead(_32);                // scope 8 at $DIR/address_of.rs:+22:30: +22:31
+        FakeRead(ForLet(None), _31);     // scope 8 at $DIR/address_of.rs:+22:9: +22:10
+        AscribeUserType(_31, o, UserTypeProjection { base: UserType(17), projs: [] }); // scope 8 at $DIR/address_of.rs:+22:12: +22:27
+        StorageLive(_33);                // scope 9 at $DIR/address_of.rs:+23:9: +23:10
+        StorageLive(_34);                // scope 9 at $DIR/address_of.rs:+23:27: +23:28
+        _34 = &raw const (*_3);          // scope 9 at $DIR/address_of.rs:+23:27: +23:28
+        _33 = move _34 as *const [i32] (Pointer(Unsize)); // scope 9 at $DIR/address_of.rs:+23:27: +23:28
+        StorageDead(_34);                // scope 9 at $DIR/address_of.rs:+23:27: +23:28
+        FakeRead(ForLet(None), _33);     // scope 9 at $DIR/address_of.rs:+23:9: +23:10
+        AscribeUserType(_33, o, UserTypeProjection { base: UserType(19), projs: [] }); // scope 9 at $DIR/address_of.rs:+23:12: +23:24
+        StorageLive(_35);                // scope 10 at $DIR/address_of.rs:+25:5: +25:16
+        StorageLive(_36);                // scope 10 at $DIR/address_of.rs:+25:5: +25:16
+        _36 = &raw mut (*_3);            // scope 10 at $DIR/address_of.rs:+25:5: +25:6
+        AscribeUserType(_36, o, UserTypeProjection { base: UserType(20), projs: [] }); // scope 10 at $DIR/address_of.rs:+25:5: +25:16
+        _35 = _36;                       // scope 10 at $DIR/address_of.rs:+25:5: +25:16
+        StorageDead(_36);                // scope 10 at $DIR/address_of.rs:+25:16: +25:17
+        StorageDead(_35);                // scope 10 at $DIR/address_of.rs:+25:16: +25:17
+        StorageLive(_37);                // scope 10 at $DIR/address_of.rs:+26:5: +26:24
+        _37 = &raw mut (*_3);            // scope 10 at $DIR/address_of.rs:+26:5: +26:6
+        StorageDead(_37);                // scope 10 at $DIR/address_of.rs:+26:24: +26:25
+        StorageLive(_38);                // scope 10 at $DIR/address_of.rs:+27:5: +27:23
+        StorageLive(_39);                // scope 10 at $DIR/address_of.rs:+27:5: +27:23
+        StorageLive(_40);                // scope 10 at $DIR/address_of.rs:+27:5: +27:6
+        _40 = &raw mut (*_3);            // scope 10 at $DIR/address_of.rs:+27:5: +27:6
+        _39 = move _40 as *mut dyn std::marker::Send (Pointer(Unsize)); // scope 10 at $DIR/address_of.rs:+27:5: +27:6
+        StorageDead(_40);                // scope 10 at $DIR/address_of.rs:+27:5: +27:6
+        AscribeUserType(_39, o, UserTypeProjection { base: UserType(21), projs: [] }); // scope 10 at $DIR/address_of.rs:+27:5: +27:23
+        _38 = _39;                       // scope 10 at $DIR/address_of.rs:+27:5: +27:23
+        StorageDead(_39);                // scope 10 at $DIR/address_of.rs:+27:23: +27:24
+        StorageDead(_38);                // scope 10 at $DIR/address_of.rs:+27:23: +27:24
+        StorageLive(_41);                // scope 10 at $DIR/address_of.rs:+28:5: +28:20
+        StorageLive(_42);                // scope 10 at $DIR/address_of.rs:+28:5: +28:6
+        _42 = &raw mut (*_3);            // scope 10 at $DIR/address_of.rs:+28:5: +28:6
+        _41 = move _42 as *mut [i32] (Pointer(Unsize)); // scope 10 at $DIR/address_of.rs:+28:5: +28:6
+        StorageDead(_42);                // scope 10 at $DIR/address_of.rs:+28:5: +28:6
+        StorageDead(_41);                // scope 10 at $DIR/address_of.rs:+28:20: +28:21
+        StorageLive(_43);                // scope 10 at $DIR/address_of.rs:+30:9: +30:10
+        _43 = &raw mut (*_3);            // scope 10 at $DIR/address_of.rs:+30:21: +30:22
+        FakeRead(ForLet(None), _43);     // scope 10 at $DIR/address_of.rs:+30:9: +30:10
+        AscribeUserType(_43, o, UserTypeProjection { base: UserType(23), projs: [] }); // scope 10 at $DIR/address_of.rs:+30:12: +30:18
+        StorageLive(_44);                // scope 11 at $DIR/address_of.rs:+31:9: +31:10
+        _44 = &raw mut (*_3);            // scope 11 at $DIR/address_of.rs:+31:29: +31:30
+        FakeRead(ForLet(None), _44);     // scope 11 at $DIR/address_of.rs:+31:9: +31:10
+        AscribeUserType(_44, o, UserTypeProjection { base: UserType(25), projs: [] }); // scope 11 at $DIR/address_of.rs:+31:12: +31:26
+        StorageLive(_45);                // scope 12 at $DIR/address_of.rs:+32:9: +32:10
+        StorageLive(_46);                // scope 12 at $DIR/address_of.rs:+32:28: +32:29
+        _46 = &raw mut (*_3);            // scope 12 at $DIR/address_of.rs:+32:28: +32:29
+        _45 = move _46 as *mut dyn std::marker::Send (Pointer(Unsize)); // scope 12 at $DIR/address_of.rs:+32:28: +32:29
+        StorageDead(_46);                // scope 12 at $DIR/address_of.rs:+32:28: +32:29
+        FakeRead(ForLet(None), _45);     // scope 12 at $DIR/address_of.rs:+32:9: +32:10
+        AscribeUserType(_45, o, UserTypeProjection { base: UserType(27), projs: [] }); // scope 12 at $DIR/address_of.rs:+32:12: +32:25
+        StorageLive(_47);                // scope 13 at $DIR/address_of.rs:+33:9: +33:10
+        StorageLive(_48);                // scope 13 at $DIR/address_of.rs:+33:25: +33:26
+        _48 = &raw mut (*_3);            // scope 13 at $DIR/address_of.rs:+33:25: +33:26
+        _47 = move _48 as *mut [i32] (Pointer(Unsize)); // scope 13 at $DIR/address_of.rs:+33:25: +33:26
+        StorageDead(_48);                // scope 13 at $DIR/address_of.rs:+33:25: +33:26
+        FakeRead(ForLet(None), _47);     // scope 13 at $DIR/address_of.rs:+33:9: +33:10
+        AscribeUserType(_47, o, UserTypeProjection { base: UserType(29), projs: [] }); // scope 13 at $DIR/address_of.rs:+33:12: +33:22
+        _0 = const ();                   // scope 0 at $DIR/address_of.rs:+0:26: +34:2
+        StorageDead(_47);                // scope 13 at $DIR/address_of.rs:+34:1: +34:2
+        StorageDead(_45);                // scope 12 at $DIR/address_of.rs:+34:1: +34:2
+        StorageDead(_44);                // scope 11 at $DIR/address_of.rs:+34:1: +34:2
+        StorageDead(_43);                // scope 10 at $DIR/address_of.rs:+34:1: +34:2
+        StorageDead(_33);                // scope 9 at $DIR/address_of.rs:+34:1: +34:2
+        StorageDead(_31);                // scope 8 at $DIR/address_of.rs:+34:1: +34:2
+        StorageDead(_30);                // scope 7 at $DIR/address_of.rs:+34:1: +34:2
+        StorageDead(_29);                // scope 6 at $DIR/address_of.rs:+34:1: +34:2
+        StorageDead(_19);                // scope 5 at $DIR/address_of.rs:+34:1: +34:2
+        StorageDead(_17);                // scope 4 at $DIR/address_of.rs:+34:1: +34:2
+        StorageDead(_16);                // scope 3 at $DIR/address_of.rs:+34:1: +34:2
+        StorageDead(_15);                // scope 2 at $DIR/address_of.rs:+34:1: +34:2
+        StorageDead(_4);                 // scope 1 at $DIR/address_of.rs:+34:1: +34:2
+        StorageDead(_3);                 // scope 1 at $DIR/address_of.rs:+34:1: +34:2
+        StorageDead(_2);                 // scope 0 at $DIR/address_of.rs:+34:1: +34:2
+        StorageDead(_1);                 // scope 0 at $DIR/address_of.rs:+34:1: +34:2
+        return;                          // scope 0 at $DIR/address_of.rs:+34:2: +34:2
     }
 }
diff --git a/src/test/mir-opt/address_of.borrow_and_cast.SimplifyCfg-initial.after.mir b/src/test/mir-opt/address_of.borrow_and_cast.SimplifyCfg-initial.after.mir
index 060077b8adb9e..4c67376b56a68 100644
--- a/src/test/mir-opt/address_of.borrow_and_cast.SimplifyCfg-initial.after.mir
+++ b/src/test/mir-opt/address_of.borrow_and_cast.SimplifyCfg-initial.after.mir
@@ -1,47 +1,47 @@
 // MIR for `borrow_and_cast` after SimplifyCfg-initial
 
 fn borrow_and_cast(_1: i32) -> () {
-    debug x => _1;                       // in scope 0 at $DIR/address-of.rs:+0:20: +0:25
-    let mut _0: ();                      // return place in scope 0 at $DIR/address-of.rs:+0:32: +0:32
-    let _2: *const i32;                  // in scope 0 at $DIR/address-of.rs:+1:9: +1:10
-    let _3: &i32;                        // in scope 0 at $DIR/address-of.rs:+1:13: +1:15
-    let _5: &mut i32;                    // in scope 0 at $DIR/address-of.rs:+2:13: +2:19
-    let mut _7: &mut i32;                // in scope 0 at $DIR/address-of.rs:+3:13: +3:19
+    debug x => _1;                       // in scope 0 at $DIR/address_of.rs:+0:20: +0:25
+    let mut _0: ();                      // return place in scope 0 at $DIR/address_of.rs:+0:32: +0:32
+    let _2: *const i32;                  // in scope 0 at $DIR/address_of.rs:+1:9: +1:10
+    let _3: &i32;                        // in scope 0 at $DIR/address_of.rs:+1:13: +1:15
+    let _5: &mut i32;                    // in scope 0 at $DIR/address_of.rs:+2:13: +2:19
+    let mut _7: &mut i32;                // in scope 0 at $DIR/address_of.rs:+3:13: +3:19
     scope 1 {
-        debug p => _2;                   // in scope 1 at $DIR/address-of.rs:+1:9: +1:10
-        let _4: *const i32;              // in scope 1 at $DIR/address-of.rs:+2:9: +2:10
+        debug p => _2;                   // in scope 1 at $DIR/address_of.rs:+1:9: +1:10
+        let _4: *const i32;              // in scope 1 at $DIR/address_of.rs:+2:9: +2:10
         scope 2 {
-            debug q => _4;               // in scope 2 at $DIR/address-of.rs:+2:9: +2:10
-            let _6: *mut i32;            // in scope 2 at $DIR/address-of.rs:+3:9: +3:10
+            debug q => _4;               // in scope 2 at $DIR/address_of.rs:+2:9: +2:10
+            let _6: *mut i32;            // in scope 2 at $DIR/address_of.rs:+3:9: +3:10
             scope 3 {
-                debug r => _6;           // in scope 3 at $DIR/address-of.rs:+3:9: +3:10
+                debug r => _6;           // in scope 3 at $DIR/address_of.rs:+3:9: +3:10
             }
         }
     }
 
     bb0: {
-        StorageLive(_2);                 // scope 0 at $DIR/address-of.rs:+1:9: +1:10
-        StorageLive(_3);                 // scope 0 at $DIR/address-of.rs:+1:13: +1:15
-        _3 = &_1;                        // scope 0 at $DIR/address-of.rs:+1:13: +1:15
-        _2 = &raw const (*_3);           // scope 0 at $DIR/address-of.rs:+1:13: +1:15
-        FakeRead(ForLet(None), _2);      // scope 0 at $DIR/address-of.rs:+1:9: +1:10
-        StorageDead(_3);                 // scope 0 at $DIR/address-of.rs:+1:29: +1:30
-        StorageLive(_4);                 // scope 1 at $DIR/address-of.rs:+2:9: +2:10
-        StorageLive(_5);                 // scope 1 at $DIR/address-of.rs:+2:13: +2:19
-        _5 = &mut _1;                    // scope 1 at $DIR/address-of.rs:+2:13: +2:19
-        _4 = &raw const (*_5);           // scope 1 at $DIR/address-of.rs:+2:13: +2:19
-        FakeRead(ForLet(None), _4);      // scope 1 at $DIR/address-of.rs:+2:9: +2:10
-        StorageDead(_5);                 // scope 1 at $DIR/address-of.rs:+2:33: +2:34
-        StorageLive(_6);                 // scope 2 at $DIR/address-of.rs:+3:9: +3:10
-        StorageLive(_7);                 // scope 2 at $DIR/address-of.rs:+3:13: +3:19
-        _7 = &mut _1;                    // scope 2 at $DIR/address-of.rs:+3:13: +3:19
-        _6 = &raw mut (*_7);             // scope 2 at $DIR/address-of.rs:+3:13: +3:19
-        FakeRead(ForLet(None), _6);      // scope 2 at $DIR/address-of.rs:+3:9: +3:10
-        StorageDead(_7);                 // scope 2 at $DIR/address-of.rs:+3:31: +3:32
-        _0 = const ();                   // scope 0 at $DIR/address-of.rs:+0:32: +4:2
-        StorageDead(_6);                 // scope 2 at $DIR/address-of.rs:+4:1: +4:2
-        StorageDead(_4);                 // scope 1 at $DIR/address-of.rs:+4:1: +4:2
-        StorageDead(_2);                 // scope 0 at $DIR/address-of.rs:+4:1: +4:2
-        return;                          // scope 0 at $DIR/address-of.rs:+4:2: +4:2
+        StorageLive(_2);                 // scope 0 at $DIR/address_of.rs:+1:9: +1:10
+        StorageLive(_3);                 // scope 0 at $DIR/address_of.rs:+1:13: +1:15
+        _3 = &_1;                        // scope 0 at $DIR/address_of.rs:+1:13: +1:15
+        _2 = &raw const (*_3);           // scope 0 at $DIR/address_of.rs:+1:13: +1:15
+        FakeRead(ForLet(None), _2);      // scope 0 at $DIR/address_of.rs:+1:9: +1:10
+        StorageDead(_3);                 // scope 0 at $DIR/address_of.rs:+1:29: +1:30
+        StorageLive(_4);                 // scope 1 at $DIR/address_of.rs:+2:9: +2:10
+        StorageLive(_5);                 // scope 1 at $DIR/address_of.rs:+2:13: +2:19
+        _5 = &mut _1;                    // scope 1 at $DIR/address_of.rs:+2:13: +2:19
+        _4 = &raw const (*_5);           // scope 1 at $DIR/address_of.rs:+2:13: +2:19
+        FakeRead(ForLet(None), _4);      // scope 1 at $DIR/address_of.rs:+2:9: +2:10
+        StorageDead(_5);                 // scope 1 at $DIR/address_of.rs:+2:33: +2:34
+        StorageLive(_6);                 // scope 2 at $DIR/address_of.rs:+3:9: +3:10
+        StorageLive(_7);                 // scope 2 at $DIR/address_of.rs:+3:13: +3:19
+        _7 = &mut _1;                    // scope 2 at $DIR/address_of.rs:+3:13: +3:19
+        _6 = &raw mut (*_7);             // scope 2 at $DIR/address_of.rs:+3:13: +3:19
+        FakeRead(ForLet(None), _6);      // scope 2 at $DIR/address_of.rs:+3:9: +3:10
+        StorageDead(_7);                 // scope 2 at $DIR/address_of.rs:+3:31: +3:32
+        _0 = const ();                   // scope 0 at $DIR/address_of.rs:+0:32: +4:2
+        StorageDead(_6);                 // scope 2 at $DIR/address_of.rs:+4:1: +4:2
+        StorageDead(_4);                 // scope 1 at $DIR/address_of.rs:+4:1: +4:2
+        StorageDead(_2);                 // scope 0 at $DIR/address_of.rs:+4:1: +4:2
+        return;                          // scope 0 at $DIR/address_of.rs:+4:2: +4:2
     }
 }
diff --git a/src/test/mir-opt/address-of.rs b/src/test/mir-opt/address_of.rs
similarity index 100%
rename from src/test/mir-opt/address-of.rs
rename to src/test/mir-opt/address_of.rs
diff --git a/src/test/mir-opt/array_index_is_temporary.main.SimplifyCfg-elaborate-drops.after.mir b/src/test/mir-opt/array_index_is_temporary.main.SimplifyCfg-elaborate-drops.after.mir
index 27f883ed321ae..af5178d4079d0 100644
--- a/src/test/mir-opt/array_index_is_temporary.main.SimplifyCfg-elaborate-drops.after.mir
+++ b/src/test/mir-opt/array_index_is_temporary.main.SimplifyCfg-elaborate-drops.after.mir
@@ -1,22 +1,22 @@
 // MIR for `main` after SimplifyCfg-elaborate-drops
 
 fn main() -> () {
-    let mut _0: ();                      // return place in scope 0 at $DIR/array-index-is-temporary.rs:+0:11: +0:11
-    let mut _1: [u32; 3];                // in scope 0 at $DIR/array-index-is-temporary.rs:+1:9: +1:14
-    let mut _4: &mut usize;              // in scope 0 at $DIR/array-index-is-temporary.rs:+3:25: +3:31
-    let mut _5: u32;                     // in scope 0 at $DIR/array-index-is-temporary.rs:+4:12: +4:29
-    let mut _6: *mut usize;              // in scope 0 at $DIR/array-index-is-temporary.rs:+4:25: +4:26
-    let _7: usize;                       // in scope 0 at $DIR/array-index-is-temporary.rs:+4:7: +4:8
-    let mut _8: usize;                   // in scope 0 at $DIR/array-index-is-temporary.rs:+4:5: +4:9
-    let mut _9: bool;                    // in scope 0 at $DIR/array-index-is-temporary.rs:+4:5: +4:9
+    let mut _0: ();                      // return place in scope 0 at $DIR/array_index_is_temporary.rs:+0:11: +0:11
+    let mut _1: [u32; 3];                // in scope 0 at $DIR/array_index_is_temporary.rs:+1:9: +1:14
+    let mut _4: &mut usize;              // in scope 0 at $DIR/array_index_is_temporary.rs:+3:25: +3:31
+    let mut _5: u32;                     // in scope 0 at $DIR/array_index_is_temporary.rs:+4:12: +4:29
+    let mut _6: *mut usize;              // in scope 0 at $DIR/array_index_is_temporary.rs:+4:25: +4:26
+    let _7: usize;                       // in scope 0 at $DIR/array_index_is_temporary.rs:+4:7: +4:8
+    let mut _8: usize;                   // in scope 0 at $DIR/array_index_is_temporary.rs:+4:5: +4:9
+    let mut _9: bool;                    // in scope 0 at $DIR/array_index_is_temporary.rs:+4:5: +4:9
     scope 1 {
-        debug x => _1;                   // in scope 1 at $DIR/array-index-is-temporary.rs:+1:9: +1:14
-        let mut _2: usize;               // in scope 1 at $DIR/array-index-is-temporary.rs:+2:9: +2:14
+        debug x => _1;                   // in scope 1 at $DIR/array_index_is_temporary.rs:+1:9: +1:14
+        let mut _2: usize;               // in scope 1 at $DIR/array_index_is_temporary.rs:+2:9: +2:14
         scope 2 {
-            debug y => _2;               // in scope 2 at $DIR/array-index-is-temporary.rs:+2:9: +2:14
-            let _3: *mut usize;          // in scope 2 at $DIR/array-index-is-temporary.rs:+3:9: +3:10
+            debug y => _2;               // in scope 2 at $DIR/array_index_is_temporary.rs:+2:9: +2:14
+            let _3: *mut usize;          // in scope 2 at $DIR/array_index_is_temporary.rs:+3:9: +3:10
             scope 3 {
-                debug z => _3;           // in scope 3 at $DIR/array-index-is-temporary.rs:+3:9: +3:10
+                debug z => _3;           // in scope 3 at $DIR/array_index_is_temporary.rs:+3:9: +3:10
                 scope 4 {
                 }
             }
@@ -24,41 +24,41 @@ fn main() -> () {
     }
 
     bb0: {
-        StorageLive(_1);                 // scope 0 at $DIR/array-index-is-temporary.rs:+1:9: +1:14
-        _1 = [const 42_u32, const 43_u32, const 44_u32]; // scope 0 at $DIR/array-index-is-temporary.rs:+1:17: +1:29
-        StorageLive(_2);                 // scope 1 at $DIR/array-index-is-temporary.rs:+2:9: +2:14
-        _2 = const 1_usize;              // scope 1 at $DIR/array-index-is-temporary.rs:+2:17: +2:18
-        StorageLive(_3);                 // scope 2 at $DIR/array-index-is-temporary.rs:+3:9: +3:10
-        StorageLive(_4);                 // scope 2 at $DIR/array-index-is-temporary.rs:+3:25: +3:31
-        _4 = &mut _2;                    // scope 2 at $DIR/array-index-is-temporary.rs:+3:25: +3:31
-        _3 = &raw mut (*_4);             // scope 2 at $DIR/array-index-is-temporary.rs:+3:25: +3:31
-        StorageDead(_4);                 // scope 2 at $DIR/array-index-is-temporary.rs:+3:31: +3:32
-        StorageLive(_5);                 // scope 3 at $DIR/array-index-is-temporary.rs:+4:12: +4:29
-        StorageLive(_6);                 // scope 4 at $DIR/array-index-is-temporary.rs:+4:25: +4:26
-        _6 = _3;                         // scope 4 at $DIR/array-index-is-temporary.rs:+4:25: +4:26
-        _5 = foo(move _6) -> bb1;        // scope 4 at $DIR/array-index-is-temporary.rs:+4:21: +4:27
+        StorageLive(_1);                 // scope 0 at $DIR/array_index_is_temporary.rs:+1:9: +1:14
+        _1 = [const 42_u32, const 43_u32, const 44_u32]; // scope 0 at $DIR/array_index_is_temporary.rs:+1:17: +1:29
+        StorageLive(_2);                 // scope 1 at $DIR/array_index_is_temporary.rs:+2:9: +2:14
+        _2 = const 1_usize;              // scope 1 at $DIR/array_index_is_temporary.rs:+2:17: +2:18
+        StorageLive(_3);                 // scope 2 at $DIR/array_index_is_temporary.rs:+3:9: +3:10
+        StorageLive(_4);                 // scope 2 at $DIR/array_index_is_temporary.rs:+3:25: +3:31
+        _4 = &mut _2;                    // scope 2 at $DIR/array_index_is_temporary.rs:+3:25: +3:31
+        _3 = &raw mut (*_4);             // scope 2 at $DIR/array_index_is_temporary.rs:+3:25: +3:31
+        StorageDead(_4);                 // scope 2 at $DIR/array_index_is_temporary.rs:+3:31: +3:32
+        StorageLive(_5);                 // scope 3 at $DIR/array_index_is_temporary.rs:+4:12: +4:29
+        StorageLive(_6);                 // scope 4 at $DIR/array_index_is_temporary.rs:+4:25: +4:26
+        _6 = _3;                         // scope 4 at $DIR/array_index_is_temporary.rs:+4:25: +4:26
+        _5 = foo(move _6) -> bb1;        // scope 4 at $DIR/array_index_is_temporary.rs:+4:21: +4:27
                                          // mir::Constant
-                                         // + span: $DIR/array-index-is-temporary.rs:16:21: 16:24
+                                         // + span: $DIR/array_index_is_temporary.rs:16:21: 16:24
                                          // + literal: Const { ty: unsafe fn(*mut usize) -> u32 {foo}, val: Value(<ZST>) }
     }
 
     bb1: {
-        StorageDead(_6);                 // scope 4 at $DIR/array-index-is-temporary.rs:+4:26: +4:27
-        StorageLive(_7);                 // scope 3 at $DIR/array-index-is-temporary.rs:+4:7: +4:8
-        _7 = _2;                         // scope 3 at $DIR/array-index-is-temporary.rs:+4:7: +4:8
-        _8 = Len(_1);                    // scope 3 at $DIR/array-index-is-temporary.rs:+4:5: +4:9
-        _9 = Lt(_7, _8);                 // scope 3 at $DIR/array-index-is-temporary.rs:+4:5: +4:9
-        assert(move _9, "index out of bounds: the length is {} but the index is {}", move _8, _7) -> bb2; // scope 3 at $DIR/array-index-is-temporary.rs:+4:5: +4:9
+        StorageDead(_6);                 // scope 4 at $DIR/array_index_is_temporary.rs:+4:26: +4:27
+        StorageLive(_7);                 // scope 3 at $DIR/array_index_is_temporary.rs:+4:7: +4:8
+        _7 = _2;                         // scope 3 at $DIR/array_index_is_temporary.rs:+4:7: +4:8
+        _8 = Len(_1);                    // scope 3 at $DIR/array_index_is_temporary.rs:+4:5: +4:9
+        _9 = Lt(_7, _8);                 // scope 3 at $DIR/array_index_is_temporary.rs:+4:5: +4:9
+        assert(move _9, "index out of bounds: the length is {} but the index is {}", move _8, _7) -> bb2; // scope 3 at $DIR/array_index_is_temporary.rs:+4:5: +4:9
     }
 
     bb2: {
-        _1[_7] = move _5;                // scope 3 at $DIR/array-index-is-temporary.rs:+4:5: +4:29
-        StorageDead(_5);                 // scope 3 at $DIR/array-index-is-temporary.rs:+4:28: +4:29
-        StorageDead(_7);                 // scope 3 at $DIR/array-index-is-temporary.rs:+4:29: +4:30
-        _0 = const ();                   // scope 0 at $DIR/array-index-is-temporary.rs:+0:11: +5:2
-        StorageDead(_3);                 // scope 2 at $DIR/array-index-is-temporary.rs:+5:1: +5:2
-        StorageDead(_2);                 // scope 1 at $DIR/array-index-is-temporary.rs:+5:1: +5:2
-        StorageDead(_1);                 // scope 0 at $DIR/array-index-is-temporary.rs:+5:1: +5:2
-        return;                          // scope 0 at $DIR/array-index-is-temporary.rs:+5:2: +5:2
+        _1[_7] = move _5;                // scope 3 at $DIR/array_index_is_temporary.rs:+4:5: +4:29
+        StorageDead(_5);                 // scope 3 at $DIR/array_index_is_temporary.rs:+4:28: +4:29
+        StorageDead(_7);                 // scope 3 at $DIR/array_index_is_temporary.rs:+4:29: +4:30
+        _0 = const ();                   // scope 0 at $DIR/array_index_is_temporary.rs:+0:11: +5:2
+        StorageDead(_3);                 // scope 2 at $DIR/array_index_is_temporary.rs:+5:1: +5:2
+        StorageDead(_2);                 // scope 1 at $DIR/array_index_is_temporary.rs:+5:1: +5:2
+        StorageDead(_1);                 // scope 0 at $DIR/array_index_is_temporary.rs:+5:1: +5:2
+        return;                          // scope 0 at $DIR/array_index_is_temporary.rs:+5:2: +5:2
     }
 }
diff --git a/src/test/mir-opt/array-index-is-temporary.rs b/src/test/mir-opt/array_index_is_temporary.rs
similarity index 100%
rename from src/test/mir-opt/array-index-is-temporary.rs
rename to src/test/mir-opt/array_index_is_temporary.rs
diff --git a/src/test/mir-opt/building/issue_101867.main.built.after.mir b/src/test/mir-opt/building/issue_101867.main.built.after.mir
index 6834205b649b2..0ebd840cf2d5c 100644
--- a/src/test/mir-opt/building/issue_101867.main.built.after.mir
+++ b/src/test/mir-opt/building/issue_101867.main.built.after.mir
@@ -1,33 +1,33 @@
 // MIR for `main` after built
 
 | User Type Annotations
-| 0: user_ty: Canonical { max_universe: U0, variables: [], value: Ty(std::option::Option<u8>) }, span: $DIR/issue-101867.rs:3:12: 3:22, inferred_ty: std::option::Option<u8>
-| 1: user_ty: Canonical { max_universe: U0, variables: [], value: Ty(std::option::Option<u8>) }, span: $DIR/issue-101867.rs:3:12: 3:22, inferred_ty: std::option::Option<u8>
+| 0: user_ty: Canonical { max_universe: U0, variables: [], value: Ty(std::option::Option<u8>) }, span: $DIR/issue_101867.rs:3:12: 3:22, inferred_ty: std::option::Option<u8>
+| 1: user_ty: Canonical { max_universe: U0, variables: [], value: Ty(std::option::Option<u8>) }, span: $DIR/issue_101867.rs:3:12: 3:22, inferred_ty: std::option::Option<u8>
 |
 fn main() -> () {
-    let mut _0: ();                      // return place in scope 0 at $DIR/issue-101867.rs:+0:11: +0:11
-    let _1: std::option::Option<u8> as UserTypeProjection { base: UserType(0), projs: [] }; // in scope 0 at $DIR/issue-101867.rs:+1:9: +1:10
-    let mut _2: !;                       // in scope 0 at $DIR/issue-101867.rs:+2:26: +4:6
+    let mut _0: ();                      // return place in scope 0 at $DIR/issue_101867.rs:+0:11: +0:11
+    let _1: std::option::Option<u8> as UserTypeProjection { base: UserType(0), projs: [] }; // in scope 0 at $DIR/issue_101867.rs:+1:9: +1:10
+    let mut _2: !;                       // in scope 0 at $DIR/issue_101867.rs:+2:26: +4:6
     let _3: ();                          // in scope 0 at $SRC_DIR/std/src/panic.rs:LL:COL
     let mut _4: !;                       // in scope 0 at $SRC_DIR/std/src/panic.rs:LL:COL
-    let mut _6: isize;                   // in scope 0 at $DIR/issue-101867.rs:+2:9: +2:16
+    let mut _6: isize;                   // in scope 0 at $DIR/issue_101867.rs:+2:9: +2:16
     scope 1 {
-        debug x => _1;                   // in scope 1 at $DIR/issue-101867.rs:+1:9: +1:10
-        let _5: u8;                      // in scope 1 at $DIR/issue-101867.rs:+2:14: +2:15
+        debug x => _1;                   // in scope 1 at $DIR/issue_101867.rs:+1:9: +1:10
+        let _5: u8;                      // in scope 1 at $DIR/issue_101867.rs:+2:14: +2:15
         scope 2 {
-            debug y => _5;               // in scope 2 at $DIR/issue-101867.rs:+2:14: +2:15
+            debug y => _5;               // in scope 2 at $DIR/issue_101867.rs:+2:14: +2:15
         }
     }
 
     bb0: {
-        StorageLive(_1);                 // scope 0 at $DIR/issue-101867.rs:+1:9: +1:10
-        _1 = Option::<u8>::Some(const 1_u8); // scope 0 at $DIR/issue-101867.rs:+1:25: +1:32
-        FakeRead(ForLet(None), _1);      // scope 0 at $DIR/issue-101867.rs:+1:9: +1:10
-        AscribeUserType(_1, o, UserTypeProjection { base: UserType(1), projs: [] }); // scope 0 at $DIR/issue-101867.rs:+1:12: +1:22
-        StorageLive(_5);                 // scope 1 at $DIR/issue-101867.rs:+2:14: +2:15
-        FakeRead(ForMatchedPlace(None), _1); // scope 1 at $DIR/issue-101867.rs:+2:19: +2:20
-        _6 = discriminant(_1);           // scope 1 at $DIR/issue-101867.rs:+2:19: +2:20
-        switchInt(move _6) -> [1_isize: bb4, otherwise: bb3]; // scope 1 at $DIR/issue-101867.rs:+2:9: +2:16
+        StorageLive(_1);                 // scope 0 at $DIR/issue_101867.rs:+1:9: +1:10
+        _1 = Option::<u8>::Some(const 1_u8); // scope 0 at $DIR/issue_101867.rs:+1:25: +1:32
+        FakeRead(ForLet(None), _1);      // scope 0 at $DIR/issue_101867.rs:+1:9: +1:10
+        AscribeUserType(_1, o, UserTypeProjection { base: UserType(1), projs: [] }); // scope 0 at $DIR/issue_101867.rs:+1:12: +1:22
+        StorageLive(_5);                 // scope 1 at $DIR/issue_101867.rs:+2:14: +2:15
+        FakeRead(ForMatchedPlace(None), _1); // scope 1 at $DIR/issue_101867.rs:+2:19: +2:20
+        _6 = discriminant(_1);           // scope 1 at $DIR/issue_101867.rs:+2:19: +2:20
+        switchInt(move _6) -> [1_isize: bb4, otherwise: bb3]; // scope 1 at $DIR/issue_101867.rs:+2:9: +2:16
     }
 
     bb1: {
@@ -44,32 +44,32 @@ fn main() -> () {
 
     bb2: {
         StorageDead(_4);                 // scope 1 at $SRC_DIR/std/src/panic.rs:LL:COL
-        StorageDead(_3);                 // scope 1 at $DIR/issue-101867.rs:+3:16: +3:17
-        unreachable;                     // scope 1 at $DIR/issue-101867.rs:+2:26: +4:6
+        StorageDead(_3);                 // scope 1 at $DIR/issue_101867.rs:+3:16: +3:17
+        unreachable;                     // scope 1 at $DIR/issue_101867.rs:+2:26: +4:6
     }
 
     bb3: {
-        goto -> bb6;                     // scope 1 at $DIR/issue-101867.rs:+2:19: +2:20
+        goto -> bb6;                     // scope 1 at $DIR/issue_101867.rs:+2:19: +2:20
     }
 
     bb4: {
-        falseEdge -> [real: bb5, imaginary: bb3]; // scope 1 at $DIR/issue-101867.rs:+2:9: +2:16
+        falseEdge -> [real: bb5, imaginary: bb3]; // scope 1 at $DIR/issue_101867.rs:+2:9: +2:16
     }
 
     bb5: {
-        _5 = ((_1 as Some).0: u8);       // scope 1 at $DIR/issue-101867.rs:+2:14: +2:15
-        _0 = const ();                   // scope 0 at $DIR/issue-101867.rs:+0:11: +5:2
-        StorageDead(_5);                 // scope 1 at $DIR/issue-101867.rs:+5:1: +5:2
-        StorageDead(_1);                 // scope 0 at $DIR/issue-101867.rs:+5:1: +5:2
-        return;                          // scope 0 at $DIR/issue-101867.rs:+5:2: +5:2
+        _5 = ((_1 as Some).0: u8);       // scope 1 at $DIR/issue_101867.rs:+2:14: +2:15
+        _0 = const ();                   // scope 0 at $DIR/issue_101867.rs:+0:11: +5:2
+        StorageDead(_5);                 // scope 1 at $DIR/issue_101867.rs:+5:1: +5:2
+        StorageDead(_1);                 // scope 0 at $DIR/issue_101867.rs:+5:1: +5:2
+        return;                          // scope 0 at $DIR/issue_101867.rs:+5:2: +5:2
     }
 
     bb6: {
-        StorageDead(_5);                 // scope 1 at $DIR/issue-101867.rs:+5:1: +5:2
-        goto -> bb1;                     // scope 0 at $DIR/issue-101867.rs:+0:11: +5:2
+        StorageDead(_5);                 // scope 1 at $DIR/issue_101867.rs:+5:1: +5:2
+        goto -> bb1;                     // scope 0 at $DIR/issue_101867.rs:+0:11: +5:2
     }
 
     bb7 (cleanup): {
-        resume;                          // scope 0 at $DIR/issue-101867.rs:+0:1: +5:2
+        resume;                          // scope 0 at $DIR/issue_101867.rs:+0:1: +5:2
     }
 }
diff --git a/src/test/mir-opt/building/issue-101867.rs b/src/test/mir-opt/building/issue_101867.rs
similarity index 100%
rename from src/test/mir-opt/building/issue-101867.rs
rename to src/test/mir-opt/building/issue_101867.rs
diff --git a/src/test/mir-opt/building/issue_49232.main.built.after.mir b/src/test/mir-opt/building/issue_49232.main.built.after.mir
index b90f8c13589fa..9182bcaa21fa6 100644
--- a/src/test/mir-opt/building/issue_49232.main.built.after.mir
+++ b/src/test/mir-opt/building/issue_49232.main.built.after.mir
@@ -1,82 +1,82 @@
 // MIR for `main` after built
 
 fn main() -> () {
-    let mut _0: ();                      // return place in scope 0 at $DIR/issue-49232.rs:+0:11: +0:11
-    let mut _1: ();                      // in scope 0 at $DIR/issue-49232.rs:+0:1: +10:2
-    let _2: i32;                         // in scope 0 at $DIR/issue-49232.rs:+2:13: +2:19
-    let mut _3: bool;                    // in scope 0 at $DIR/issue-49232.rs:+3:19: +3:23
-    let mut _4: !;                       // in scope 0 at $DIR/issue-49232.rs:+5:25: +5:30
-    let _5: ();                          // in scope 0 at $DIR/issue-49232.rs:+8:9: +8:22
-    let mut _6: &i32;                    // in scope 0 at $DIR/issue-49232.rs:+8:14: +8:21
+    let mut _0: ();                      // return place in scope 0 at $DIR/issue_49232.rs:+0:11: +0:11
+    let mut _1: ();                      // in scope 0 at $DIR/issue_49232.rs:+0:1: +10:2
+    let _2: i32;                         // in scope 0 at $DIR/issue_49232.rs:+2:13: +2:19
+    let mut _3: bool;                    // in scope 0 at $DIR/issue_49232.rs:+3:19: +3:23
+    let mut _4: !;                       // in scope 0 at $DIR/issue_49232.rs:+5:25: +5:30
+    let _5: ();                          // in scope 0 at $DIR/issue_49232.rs:+8:9: +8:22
+    let mut _6: &i32;                    // in scope 0 at $DIR/issue_49232.rs:+8:14: +8:21
     scope 1 {
-        debug beacon => _2;              // in scope 1 at $DIR/issue-49232.rs:+2:13: +2:19
+        debug beacon => _2;              // in scope 1 at $DIR/issue_49232.rs:+2:13: +2:19
     }
 
     bb0: {
-        goto -> bb1;                     // scope 0 at $DIR/issue-49232.rs:+1:5: +9:6
+        goto -> bb1;                     // scope 0 at $DIR/issue_49232.rs:+1:5: +9:6
     }
 
     bb1: {
-        falseUnwind -> [real: bb2, cleanup: bb11]; // scope 0 at $DIR/issue-49232.rs:+1:5: +9:6
+        falseUnwind -> [real: bb2, cleanup: bb11]; // scope 0 at $DIR/issue_49232.rs:+1:5: +9:6
     }
 
     bb2: {
-        StorageLive(_2);                 // scope 0 at $DIR/issue-49232.rs:+2:13: +2:19
-        StorageLive(_3);                 // scope 0 at $DIR/issue-49232.rs:+3:19: +3:23
-        _3 = const true;                 // scope 0 at $DIR/issue-49232.rs:+3:19: +3:23
-        FakeRead(ForMatchedPlace(None), _3); // scope 0 at $DIR/issue-49232.rs:+3:19: +3:23
-        switchInt(_3) -> [false: bb3, otherwise: bb4]; // scope 0 at $DIR/issue-49232.rs:+3:13: +3:23
+        StorageLive(_2);                 // scope 0 at $DIR/issue_49232.rs:+2:13: +2:19
+        StorageLive(_3);                 // scope 0 at $DIR/issue_49232.rs:+3:19: +3:23
+        _3 = const true;                 // scope 0 at $DIR/issue_49232.rs:+3:19: +3:23
+        FakeRead(ForMatchedPlace(None), _3); // scope 0 at $DIR/issue_49232.rs:+3:19: +3:23
+        switchInt(_3) -> [false: bb3, otherwise: bb4]; // scope 0 at $DIR/issue_49232.rs:+3:13: +3:23
     }
 
     bb3: {
-        falseEdge -> [real: bb5, imaginary: bb4]; // scope 0 at $DIR/issue-49232.rs:+4:17: +4:22
+        falseEdge -> [real: bb5, imaginary: bb4]; // scope 0 at $DIR/issue_49232.rs:+4:17: +4:22
     }
 
     bb4: {
-        _0 = const ();                   // scope 0 at $DIR/issue-49232.rs:+5:25: +5:30
-        goto -> bb10;                    // scope 0 at $DIR/issue-49232.rs:+5:25: +5:30
+        _0 = const ();                   // scope 0 at $DIR/issue_49232.rs:+5:25: +5:30
+        goto -> bb10;                    // scope 0 at $DIR/issue_49232.rs:+5:25: +5:30
     }
 
     bb5: {
-        _2 = const 4_i32;                // scope 0 at $DIR/issue-49232.rs:+4:26: +4:27
-        goto -> bb8;                     // scope 0 at $DIR/issue-49232.rs:+4:26: +4:27
+        _2 = const 4_i32;                // scope 0 at $DIR/issue_49232.rs:+4:26: +4:27
+        goto -> bb8;                     // scope 0 at $DIR/issue_49232.rs:+4:26: +4:27
     }
 
     bb6: {
-        unreachable;                     // scope 0 at $DIR/issue-49232.rs:+5:25: +5:30
+        unreachable;                     // scope 0 at $DIR/issue_49232.rs:+5:25: +5:30
     }
 
     bb7: {
-        goto -> bb8;                     // scope 0 at $DIR/issue-49232.rs:+6:13: +6:14
+        goto -> bb8;                     // scope 0 at $DIR/issue_49232.rs:+6:13: +6:14
     }
 
     bb8: {
-        FakeRead(ForLet(None), _2);      // scope 0 at $DIR/issue-49232.rs:+2:13: +2:19
-        StorageDead(_3);                 // scope 0 at $DIR/issue-49232.rs:+7:10: +7:11
-        StorageLive(_5);                 // scope 1 at $DIR/issue-49232.rs:+8:9: +8:22
-        StorageLive(_6);                 // scope 1 at $DIR/issue-49232.rs:+8:14: +8:21
-        _6 = &_2;                        // scope 1 at $DIR/issue-49232.rs:+8:14: +8:21
-        _5 = std::mem::drop::<&i32>(move _6) -> [return: bb9, unwind: bb11]; // scope 1 at $DIR/issue-49232.rs:+8:9: +8:22
+        FakeRead(ForLet(None), _2);      // scope 0 at $DIR/issue_49232.rs:+2:13: +2:19
+        StorageDead(_3);                 // scope 0 at $DIR/issue_49232.rs:+7:10: +7:11
+        StorageLive(_5);                 // scope 1 at $DIR/issue_49232.rs:+8:9: +8:22
+        StorageLive(_6);                 // scope 1 at $DIR/issue_49232.rs:+8:14: +8:21
+        _6 = &_2;                        // scope 1 at $DIR/issue_49232.rs:+8:14: +8:21
+        _5 = std::mem::drop::<&i32>(move _6) -> [return: bb9, unwind: bb11]; // scope 1 at $DIR/issue_49232.rs:+8:9: +8:22
                                          // mir::Constant
-                                         // + span: $DIR/issue-49232.rs:13:9: 13:13
+                                         // + span: $DIR/issue_49232.rs:13:9: 13:13
                                          // + literal: Const { ty: fn(&i32) {std::mem::drop::<&i32>}, val: Value(<ZST>) }
     }
 
     bb9: {
-        StorageDead(_6);                 // scope 1 at $DIR/issue-49232.rs:+8:21: +8:22
-        StorageDead(_5);                 // scope 1 at $DIR/issue-49232.rs:+8:22: +8:23
-        _1 = const ();                   // scope 0 at $DIR/issue-49232.rs:+1:10: +9:6
-        StorageDead(_2);                 // scope 0 at $DIR/issue-49232.rs:+9:5: +9:6
-        goto -> bb1;                     // scope 0 at $DIR/issue-49232.rs:+1:5: +9:6
+        StorageDead(_6);                 // scope 1 at $DIR/issue_49232.rs:+8:21: +8:22
+        StorageDead(_5);                 // scope 1 at $DIR/issue_49232.rs:+8:22: +8:23
+        _1 = const ();                   // scope 0 at $DIR/issue_49232.rs:+1:10: +9:6
+        StorageDead(_2);                 // scope 0 at $DIR/issue_49232.rs:+9:5: +9:6
+        goto -> bb1;                     // scope 0 at $DIR/issue_49232.rs:+1:5: +9:6
     }
 
     bb10: {
-        StorageDead(_3);                 // scope 0 at $DIR/issue-49232.rs:+7:10: +7:11
-        StorageDead(_2);                 // scope 0 at $DIR/issue-49232.rs:+9:5: +9:6
-        return;                          // scope 0 at $DIR/issue-49232.rs:+10:2: +10:2
+        StorageDead(_3);                 // scope 0 at $DIR/issue_49232.rs:+7:10: +7:11
+        StorageDead(_2);                 // scope 0 at $DIR/issue_49232.rs:+9:5: +9:6
+        return;                          // scope 0 at $DIR/issue_49232.rs:+10:2: +10:2
     }
 
     bb11 (cleanup): {
-        resume;                          // scope 0 at $DIR/issue-49232.rs:+0:1: +10:2
+        resume;                          // scope 0 at $DIR/issue_49232.rs:+0:1: +10:2
     }
 }
diff --git a/src/test/mir-opt/building/issue-49232.rs b/src/test/mir-opt/building/issue_49232.rs
similarity index 100%
rename from src/test/mir-opt/building/issue-49232.rs
rename to src/test/mir-opt/building/issue_49232.rs
diff --git a/src/test/mir-opt/building/receiver_ptr_mutability.main.built.after.mir b/src/test/mir-opt/building/receiver_ptr_mutability.main.built.after.mir
index 0192bdc2d5e3e..41eb00363bd90 100644
--- a/src/test/mir-opt/building/receiver_ptr_mutability.main.built.after.mir
+++ b/src/test/mir-opt/building/receiver_ptr_mutability.main.built.after.mir
@@ -1,96 +1,96 @@
 // MIR for `main` after built
 
 | User Type Annotations
-| 0: user_ty: Canonical { max_universe: U0, variables: [], value: Ty(*mut Test) }, span: $DIR/receiver-ptr-mutability.rs:14:14: 14:23, inferred_ty: *mut Test
-| 1: user_ty: Canonical { max_universe: U0, variables: [], value: Ty(*mut Test) }, span: $DIR/receiver-ptr-mutability.rs:14:14: 14:23, inferred_ty: *mut Test
-| 2: user_ty: Canonical { max_universe: U0, variables: [CanonicalVarInfo { kind: Region(U0) }, CanonicalVarInfo { kind: Region(U0) }, CanonicalVarInfo { kind: Region(U0) }, CanonicalVarInfo { kind: Region(U0) }], value: Ty(&&&&*mut Test) }, span: $DIR/receiver-ptr-mutability.rs:18:18: 18:31, inferred_ty: &&&&*mut Test
-| 3: user_ty: Canonical { max_universe: U0, variables: [CanonicalVarInfo { kind: Region(U0) }, CanonicalVarInfo { kind: Region(U0) }, CanonicalVarInfo { kind: Region(U0) }, CanonicalVarInfo { kind: Region(U0) }], value: Ty(&&&&*mut Test) }, span: $DIR/receiver-ptr-mutability.rs:18:18: 18:31, inferred_ty: &&&&*mut Test
+| 0: user_ty: Canonical { max_universe: U0, variables: [], value: Ty(*mut Test) }, span: $DIR/receiver_ptr_mutability.rs:14:14: 14:23, inferred_ty: *mut Test
+| 1: user_ty: Canonical { max_universe: U0, variables: [], value: Ty(*mut Test) }, span: $DIR/receiver_ptr_mutability.rs:14:14: 14:23, inferred_ty: *mut Test
+| 2: user_ty: Canonical { max_universe: U0, variables: [CanonicalVarInfo { kind: Region(U0) }, CanonicalVarInfo { kind: Region(U0) }, CanonicalVarInfo { kind: Region(U0) }, CanonicalVarInfo { kind: Region(U0) }], value: Ty(&&&&*mut Test) }, span: $DIR/receiver_ptr_mutability.rs:18:18: 18:31, inferred_ty: &&&&*mut Test
+| 3: user_ty: Canonical { max_universe: U0, variables: [CanonicalVarInfo { kind: Region(U0) }, CanonicalVarInfo { kind: Region(U0) }, CanonicalVarInfo { kind: Region(U0) }, CanonicalVarInfo { kind: Region(U0) }], value: Ty(&&&&*mut Test) }, span: $DIR/receiver_ptr_mutability.rs:18:18: 18:31, inferred_ty: &&&&*mut Test
 |
 fn main() -> () {
-    let mut _0: ();                      // return place in scope 0 at $DIR/receiver-ptr-mutability.rs:+0:11: +0:11
-    let _1: *mut Test as UserTypeProjection { base: UserType(0), projs: [] }; // in scope 0 at $DIR/receiver-ptr-mutability.rs:+1:9: +1:12
-    let _2: ();                          // in scope 0 at $DIR/receiver-ptr-mutability.rs:+2:5: +2:12
-    let mut _3: *const Test;             // in scope 0 at $DIR/receiver-ptr-mutability.rs:+2:5: +2:12
-    let mut _4: *mut Test;               // in scope 0 at $DIR/receiver-ptr-mutability.rs:+2:5: +2:8
-    let _6: &&&&*mut Test;               // in scope 0 at $DIR/receiver-ptr-mutability.rs:+5:34: +5:41
-    let _7: &&&*mut Test;                // in scope 0 at $DIR/receiver-ptr-mutability.rs:+5:35: +5:41
-    let _8: &&*mut Test;                 // in scope 0 at $DIR/receiver-ptr-mutability.rs:+5:36: +5:41
-    let _9: &*mut Test;                  // in scope 0 at $DIR/receiver-ptr-mutability.rs:+5:37: +5:41
-    let _10: ();                         // in scope 0 at $DIR/receiver-ptr-mutability.rs:+6:5: +6:16
-    let mut _11: *const Test;            // in scope 0 at $DIR/receiver-ptr-mutability.rs:+6:5: +6:16
-    let mut _12: *mut Test;              // in scope 0 at $DIR/receiver-ptr-mutability.rs:+6:5: +6:16
+    let mut _0: ();                      // return place in scope 0 at $DIR/receiver_ptr_mutability.rs:+0:11: +0:11
+    let _1: *mut Test as UserTypeProjection { base: UserType(0), projs: [] }; // in scope 0 at $DIR/receiver_ptr_mutability.rs:+1:9: +1:12
+    let _2: ();                          // in scope 0 at $DIR/receiver_ptr_mutability.rs:+2:5: +2:12
+    let mut _3: *const Test;             // in scope 0 at $DIR/receiver_ptr_mutability.rs:+2:5: +2:12
+    let mut _4: *mut Test;               // in scope 0 at $DIR/receiver_ptr_mutability.rs:+2:5: +2:8
+    let _6: &&&&*mut Test;               // in scope 0 at $DIR/receiver_ptr_mutability.rs:+5:34: +5:41
+    let _7: &&&*mut Test;                // in scope 0 at $DIR/receiver_ptr_mutability.rs:+5:35: +5:41
+    let _8: &&*mut Test;                 // in scope 0 at $DIR/receiver_ptr_mutability.rs:+5:36: +5:41
+    let _9: &*mut Test;                  // in scope 0 at $DIR/receiver_ptr_mutability.rs:+5:37: +5:41
+    let _10: ();                         // in scope 0 at $DIR/receiver_ptr_mutability.rs:+6:5: +6:16
+    let mut _11: *const Test;            // in scope 0 at $DIR/receiver_ptr_mutability.rs:+6:5: +6:16
+    let mut _12: *mut Test;              // in scope 0 at $DIR/receiver_ptr_mutability.rs:+6:5: +6:16
     scope 1 {
-        debug ptr => _1;                 // in scope 1 at $DIR/receiver-ptr-mutability.rs:+1:9: +1:12
-        let _5: &&&&*mut Test as UserTypeProjection { base: UserType(2), projs: [] }; // in scope 1 at $DIR/receiver-ptr-mutability.rs:+5:9: +5:16
+        debug ptr => _1;                 // in scope 1 at $DIR/receiver_ptr_mutability.rs:+1:9: +1:12
+        let _5: &&&&*mut Test as UserTypeProjection { base: UserType(2), projs: [] }; // in scope 1 at $DIR/receiver_ptr_mutability.rs:+5:9: +5:16
         scope 2 {
-            debug ptr_ref => _5;         // in scope 2 at $DIR/receiver-ptr-mutability.rs:+5:9: +5:16
+            debug ptr_ref => _5;         // in scope 2 at $DIR/receiver_ptr_mutability.rs:+5:9: +5:16
         }
     }
 
     bb0: {
-        StorageLive(_1);                 // scope 0 at $DIR/receiver-ptr-mutability.rs:+1:9: +1:12
-        _1 = null_mut::<Test>() -> [return: bb1, unwind: bb4]; // scope 0 at $DIR/receiver-ptr-mutability.rs:+1:26: +1:46
+        StorageLive(_1);                 // scope 0 at $DIR/receiver_ptr_mutability.rs:+1:9: +1:12
+        _1 = null_mut::<Test>() -> [return: bb1, unwind: bb4]; // scope 0 at $DIR/receiver_ptr_mutability.rs:+1:26: +1:46
                                          // mir::Constant
-                                         // + span: $DIR/receiver-ptr-mutability.rs:14:26: 14:44
+                                         // + span: $DIR/receiver_ptr_mutability.rs:14:26: 14:44
                                          // + literal: Const { ty: fn() -> *mut Test {null_mut::<Test>}, val: Value(<ZST>) }
     }
 
     bb1: {
-        FakeRead(ForLet(None), _1);      // scope 0 at $DIR/receiver-ptr-mutability.rs:+1:9: +1:12
-        AscribeUserType(_1, o, UserTypeProjection { base: UserType(1), projs: [] }); // scope 0 at $DIR/receiver-ptr-mutability.rs:+1:14: +1:23
-        StorageLive(_2);                 // scope 1 at $DIR/receiver-ptr-mutability.rs:+2:5: +2:12
-        StorageLive(_3);                 // scope 1 at $DIR/receiver-ptr-mutability.rs:+2:5: +2:12
-        StorageLive(_4);                 // scope 1 at $DIR/receiver-ptr-mutability.rs:+2:5: +2:8
-        _4 = _1;                         // scope 1 at $DIR/receiver-ptr-mutability.rs:+2:5: +2:8
-        _3 = move _4 as *const Test (Pointer(MutToConstPointer)); // scope 1 at $DIR/receiver-ptr-mutability.rs:+2:5: +2:12
-        StorageDead(_4);                 // scope 1 at $DIR/receiver-ptr-mutability.rs:+2:7: +2:8
-        _2 = Test::x(move _3) -> [return: bb2, unwind: bb4]; // scope 1 at $DIR/receiver-ptr-mutability.rs:+2:5: +2:12
+        FakeRead(ForLet(None), _1);      // scope 0 at $DIR/receiver_ptr_mutability.rs:+1:9: +1:12
+        AscribeUserType(_1, o, UserTypeProjection { base: UserType(1), projs: [] }); // scope 0 at $DIR/receiver_ptr_mutability.rs:+1:14: +1:23
+        StorageLive(_2);                 // scope 1 at $DIR/receiver_ptr_mutability.rs:+2:5: +2:12
+        StorageLive(_3);                 // scope 1 at $DIR/receiver_ptr_mutability.rs:+2:5: +2:12
+        StorageLive(_4);                 // scope 1 at $DIR/receiver_ptr_mutability.rs:+2:5: +2:8
+        _4 = _1;                         // scope 1 at $DIR/receiver_ptr_mutability.rs:+2:5: +2:8
+        _3 = move _4 as *const Test (Pointer(MutToConstPointer)); // scope 1 at $DIR/receiver_ptr_mutability.rs:+2:5: +2:12
+        StorageDead(_4);                 // scope 1 at $DIR/receiver_ptr_mutability.rs:+2:7: +2:8
+        _2 = Test::x(move _3) -> [return: bb2, unwind: bb4]; // scope 1 at $DIR/receiver_ptr_mutability.rs:+2:5: +2:12
                                          // mir::Constant
-                                         // + span: $DIR/receiver-ptr-mutability.rs:15:9: 15:10
+                                         // + span: $DIR/receiver_ptr_mutability.rs:15:9: 15:10
                                          // + literal: Const { ty: fn(*const Test) {Test::x}, val: Value(<ZST>) }
     }
 
     bb2: {
-        StorageDead(_3);                 // scope 1 at $DIR/receiver-ptr-mutability.rs:+2:11: +2:12
-        StorageDead(_2);                 // scope 1 at $DIR/receiver-ptr-mutability.rs:+2:12: +2:13
-        StorageLive(_5);                 // scope 1 at $DIR/receiver-ptr-mutability.rs:+5:9: +5:16
-        StorageLive(_6);                 // scope 1 at $DIR/receiver-ptr-mutability.rs:+5:34: +5:41
-        StorageLive(_7);                 // scope 1 at $DIR/receiver-ptr-mutability.rs:+5:35: +5:41
-        StorageLive(_8);                 // scope 1 at $DIR/receiver-ptr-mutability.rs:+5:36: +5:41
-        StorageLive(_9);                 // scope 1 at $DIR/receiver-ptr-mutability.rs:+5:37: +5:41
-        _9 = &_1;                        // scope 1 at $DIR/receiver-ptr-mutability.rs:+5:37: +5:41
-        _8 = &_9;                        // scope 1 at $DIR/receiver-ptr-mutability.rs:+5:36: +5:41
-        _7 = &_8;                        // scope 1 at $DIR/receiver-ptr-mutability.rs:+5:35: +5:41
-        _6 = &_7;                        // scope 1 at $DIR/receiver-ptr-mutability.rs:+5:34: +5:41
-        _5 = &(*_6);                     // scope 1 at $DIR/receiver-ptr-mutability.rs:+5:34: +5:41
-        FakeRead(ForLet(None), _5);      // scope 1 at $DIR/receiver-ptr-mutability.rs:+5:9: +5:16
-        AscribeUserType(_5, o, UserTypeProjection { base: UserType(3), projs: [] }); // scope 1 at $DIR/receiver-ptr-mutability.rs:+5:18: +5:31
-        StorageDead(_6);                 // scope 1 at $DIR/receiver-ptr-mutability.rs:+5:41: +5:42
-        StorageLive(_10);                // scope 2 at $DIR/receiver-ptr-mutability.rs:+6:5: +6:16
-        StorageLive(_11);                // scope 2 at $DIR/receiver-ptr-mutability.rs:+6:5: +6:16
-        StorageLive(_12);                // scope 2 at $DIR/receiver-ptr-mutability.rs:+6:5: +6:16
-        _12 = (*(*(*(*_5))));            // scope 2 at $DIR/receiver-ptr-mutability.rs:+6:5: +6:16
-        _11 = move _12 as *const Test (Pointer(MutToConstPointer)); // scope 2 at $DIR/receiver-ptr-mutability.rs:+6:5: +6:16
-        StorageDead(_12);                // scope 2 at $DIR/receiver-ptr-mutability.rs:+6:11: +6:12
-        _10 = Test::x(move _11) -> [return: bb3, unwind: bb4]; // scope 2 at $DIR/receiver-ptr-mutability.rs:+6:5: +6:16
+        StorageDead(_3);                 // scope 1 at $DIR/receiver_ptr_mutability.rs:+2:11: +2:12
+        StorageDead(_2);                 // scope 1 at $DIR/receiver_ptr_mutability.rs:+2:12: +2:13
+        StorageLive(_5);                 // scope 1 at $DIR/receiver_ptr_mutability.rs:+5:9: +5:16
+        StorageLive(_6);                 // scope 1 at $DIR/receiver_ptr_mutability.rs:+5:34: +5:41
+        StorageLive(_7);                 // scope 1 at $DIR/receiver_ptr_mutability.rs:+5:35: +5:41
+        StorageLive(_8);                 // scope 1 at $DIR/receiver_ptr_mutability.rs:+5:36: +5:41
+        StorageLive(_9);                 // scope 1 at $DIR/receiver_ptr_mutability.rs:+5:37: +5:41
+        _9 = &_1;                        // scope 1 at $DIR/receiver_ptr_mutability.rs:+5:37: +5:41
+        _8 = &_9;                        // scope 1 at $DIR/receiver_ptr_mutability.rs:+5:36: +5:41
+        _7 = &_8;                        // scope 1 at $DIR/receiver_ptr_mutability.rs:+5:35: +5:41
+        _6 = &_7;                        // scope 1 at $DIR/receiver_ptr_mutability.rs:+5:34: +5:41
+        _5 = &(*_6);                     // scope 1 at $DIR/receiver_ptr_mutability.rs:+5:34: +5:41
+        FakeRead(ForLet(None), _5);      // scope 1 at $DIR/receiver_ptr_mutability.rs:+5:9: +5:16
+        AscribeUserType(_5, o, UserTypeProjection { base: UserType(3), projs: [] }); // scope 1 at $DIR/receiver_ptr_mutability.rs:+5:18: +5:31
+        StorageDead(_6);                 // scope 1 at $DIR/receiver_ptr_mutability.rs:+5:41: +5:42
+        StorageLive(_10);                // scope 2 at $DIR/receiver_ptr_mutability.rs:+6:5: +6:16
+        StorageLive(_11);                // scope 2 at $DIR/receiver_ptr_mutability.rs:+6:5: +6:16
+        StorageLive(_12);                // scope 2 at $DIR/receiver_ptr_mutability.rs:+6:5: +6:16
+        _12 = (*(*(*(*_5))));            // scope 2 at $DIR/receiver_ptr_mutability.rs:+6:5: +6:16
+        _11 = move _12 as *const Test (Pointer(MutToConstPointer)); // scope 2 at $DIR/receiver_ptr_mutability.rs:+6:5: +6:16
+        StorageDead(_12);                // scope 2 at $DIR/receiver_ptr_mutability.rs:+6:11: +6:12
+        _10 = Test::x(move _11) -> [return: bb3, unwind: bb4]; // scope 2 at $DIR/receiver_ptr_mutability.rs:+6:5: +6:16
                                          // mir::Constant
-                                         // + span: $DIR/receiver-ptr-mutability.rs:19:13: 19:14
+                                         // + span: $DIR/receiver_ptr_mutability.rs:19:13: 19:14
                                          // + literal: Const { ty: fn(*const Test) {Test::x}, val: Value(<ZST>) }
     }
 
     bb3: {
-        StorageDead(_11);                // scope 2 at $DIR/receiver-ptr-mutability.rs:+6:15: +6:16
-        StorageDead(_10);                // scope 2 at $DIR/receiver-ptr-mutability.rs:+6:16: +6:17
-        _0 = const ();                   // scope 0 at $DIR/receiver-ptr-mutability.rs:+0:11: +7:2
-        StorageDead(_9);                 // scope 1 at $DIR/receiver-ptr-mutability.rs:+7:1: +7:2
-        StorageDead(_8);                 // scope 1 at $DIR/receiver-ptr-mutability.rs:+7:1: +7:2
-        StorageDead(_7);                 // scope 1 at $DIR/receiver-ptr-mutability.rs:+7:1: +7:2
-        StorageDead(_5);                 // scope 1 at $DIR/receiver-ptr-mutability.rs:+7:1: +7:2
-        StorageDead(_1);                 // scope 0 at $DIR/receiver-ptr-mutability.rs:+7:1: +7:2
-        return;                          // scope 0 at $DIR/receiver-ptr-mutability.rs:+7:2: +7:2
+        StorageDead(_11);                // scope 2 at $DIR/receiver_ptr_mutability.rs:+6:15: +6:16
+        StorageDead(_10);                // scope 2 at $DIR/receiver_ptr_mutability.rs:+6:16: +6:17
+        _0 = const ();                   // scope 0 at $DIR/receiver_ptr_mutability.rs:+0:11: +7:2
+        StorageDead(_9);                 // scope 1 at $DIR/receiver_ptr_mutability.rs:+7:1: +7:2
+        StorageDead(_8);                 // scope 1 at $DIR/receiver_ptr_mutability.rs:+7:1: +7:2
+        StorageDead(_7);                 // scope 1 at $DIR/receiver_ptr_mutability.rs:+7:1: +7:2
+        StorageDead(_5);                 // scope 1 at $DIR/receiver_ptr_mutability.rs:+7:1: +7:2
+        StorageDead(_1);                 // scope 0 at $DIR/receiver_ptr_mutability.rs:+7:1: +7:2
+        return;                          // scope 0 at $DIR/receiver_ptr_mutability.rs:+7:2: +7:2
     }
 
     bb4 (cleanup): {
-        resume;                          // scope 0 at $DIR/receiver-ptr-mutability.rs:+0:1: +7:2
+        resume;                          // scope 0 at $DIR/receiver_ptr_mutability.rs:+0:1: +7:2
     }
 }
diff --git a/src/test/mir-opt/building/receiver-ptr-mutability.rs b/src/test/mir-opt/building/receiver_ptr_mutability.rs
similarity index 100%
rename from src/test/mir-opt/building/receiver-ptr-mutability.rs
rename to src/test/mir-opt/building/receiver_ptr_mutability.rs
diff --git a/src/test/mir-opt/building/simple_match.match_bool.built.after.mir b/src/test/mir-opt/building/simple_match.match_bool.built.after.mir
index 5b101cbdee775..a4516026c3b47 100644
--- a/src/test/mir-opt/building/simple_match.match_bool.built.after.mir
+++ b/src/test/mir-opt/building/simple_match.match_bool.built.after.mir
@@ -1,29 +1,29 @@
 // MIR for `match_bool` after built
 
 fn match_bool(_1: bool) -> usize {
-    debug x => _1;                       // in scope 0 at $DIR/simple-match.rs:+0:15: +0:16
-    let mut _0: usize;                   // return place in scope 0 at $DIR/simple-match.rs:+0:27: +0:32
+    debug x => _1;                       // in scope 0 at $DIR/simple_match.rs:+0:15: +0:16
+    let mut _0: usize;                   // return place in scope 0 at $DIR/simple_match.rs:+0:27: +0:32
 
     bb0: {
-        FakeRead(ForMatchedPlace(None), _1); // scope 0 at $DIR/simple-match.rs:+1:11: +1:12
-        switchInt(_1) -> [false: bb2, otherwise: bb1]; // scope 0 at $DIR/simple-match.rs:+1:5: +1:12
+        FakeRead(ForMatchedPlace(None), _1); // scope 0 at $DIR/simple_match.rs:+1:11: +1:12
+        switchInt(_1) -> [false: bb2, otherwise: bb1]; // scope 0 at $DIR/simple_match.rs:+1:5: +1:12
     }
 
     bb1: {
-        falseEdge -> [real: bb3, imaginary: bb2]; // scope 0 at $DIR/simple-match.rs:+2:9: +2:13
+        falseEdge -> [real: bb3, imaginary: bb2]; // scope 0 at $DIR/simple_match.rs:+2:9: +2:13
     }
 
     bb2: {
-        _0 = const 20_usize;             // scope 0 at $DIR/simple-match.rs:+3:14: +3:16
-        goto -> bb4;                     // scope 0 at $DIR/simple-match.rs:+3:14: +3:16
+        _0 = const 20_usize;             // scope 0 at $DIR/simple_match.rs:+3:14: +3:16
+        goto -> bb4;                     // scope 0 at $DIR/simple_match.rs:+3:14: +3:16
     }
 
     bb3: {
-        _0 = const 10_usize;             // scope 0 at $DIR/simple-match.rs:+2:17: +2:19
-        goto -> bb4;                     // scope 0 at $DIR/simple-match.rs:+2:17: +2:19
+        _0 = const 10_usize;             // scope 0 at $DIR/simple_match.rs:+2:17: +2:19
+        goto -> bb4;                     // scope 0 at $DIR/simple_match.rs:+2:17: +2:19
     }
 
     bb4: {
-        return;                          // scope 0 at $DIR/simple-match.rs:+5:2: +5:2
+        return;                          // scope 0 at $DIR/simple_match.rs:+5:2: +5:2
     }
 }
diff --git a/src/test/mir-opt/building/simple-match.rs b/src/test/mir-opt/building/simple_match.rs
similarity index 100%
rename from src/test/mir-opt/building/simple-match.rs
rename to src/test/mir-opt/building/simple_match.rs
diff --git a/src/test/mir-opt/const_promotion_extern_static.BAR-promoted[0].SimplifyCfg-elaborate-drops.after.mir b/src/test/mir-opt/const_promotion_extern_static.BAR-promoted[0].SimplifyCfg-elaborate-drops.after.mir
index 7650769de3b59..028480bdc88b4 100644
--- a/src/test/mir-opt/const_promotion_extern_static.BAR-promoted[0].SimplifyCfg-elaborate-drops.after.mir
+++ b/src/test/mir-opt/const_promotion_extern_static.BAR-promoted[0].SimplifyCfg-elaborate-drops.after.mir
@@ -1,20 +1,20 @@
 // MIR for `BAR::promoted[0]` after SimplifyCfg-elaborate-drops
 
 promoted[0] in BAR: &[&i32; 1] = {
-    let mut _0: &[&i32; 1];              // return place in scope 0 at $DIR/const-promotion-extern-static.rs:+0:31: +0:44
-    let mut _1: [&i32; 1];               // in scope 0 at $DIR/const-promotion-extern-static.rs:+0:31: +0:35
-    let mut _2: &i32;                    // in scope 0 at $DIR/const-promotion-extern-static.rs:+0:32: +0:34
-    let mut _3: &i32;                    // in scope 0 at $DIR/const-promotion-extern-static.rs:+0:33: +0:34
+    let mut _0: &[&i32; 1];              // return place in scope 0 at $DIR/const_promotion_extern_static.rs:+0:31: +0:44
+    let mut _1: [&i32; 1];               // in scope 0 at $DIR/const_promotion_extern_static.rs:+0:31: +0:35
+    let mut _2: &i32;                    // in scope 0 at $DIR/const_promotion_extern_static.rs:+0:32: +0:34
+    let mut _3: &i32;                    // in scope 0 at $DIR/const_promotion_extern_static.rs:+0:33: +0:34
 
     bb0: {
-        _3 = const {alloc1: &i32};       // scope 0 at $DIR/const-promotion-extern-static.rs:+0:33: +0:34
+        _3 = const {alloc1: &i32};       // scope 0 at $DIR/const_promotion_extern_static.rs:+0:33: +0:34
                                          // mir::Constant
-                                         // + span: $DIR/const-promotion-extern-static.rs:9:33: 9:34
+                                         // + span: $DIR/const_promotion_extern_static.rs:9:33: 9:34
                                          // + literal: Const { ty: &i32, val: Value(Scalar(alloc1)) }
-        _2 = &(*_3);                     // scope 0 at $DIR/const-promotion-extern-static.rs:+0:32: +0:34
-        _1 = [move _2];                  // scope 0 at $DIR/const-promotion-extern-static.rs:+0:31: +0:35
-        _0 = &_1;                        // scope 0 at $DIR/const-promotion-extern-static.rs:+0:31: +0:44
-        return;                          // scope 0 at $DIR/const-promotion-extern-static.rs:+0:31: +0:44
+        _2 = &(*_3);                     // scope 0 at $DIR/const_promotion_extern_static.rs:+0:32: +0:34
+        _1 = [move _2];                  // scope 0 at $DIR/const_promotion_extern_static.rs:+0:31: +0:35
+        _0 = &_1;                        // scope 0 at $DIR/const_promotion_extern_static.rs:+0:31: +0:44
+        return;                          // scope 0 at $DIR/const_promotion_extern_static.rs:+0:31: +0:44
     }
 }
 
diff --git a/src/test/mir-opt/const_promotion_extern_static.BAR.PromoteTemps.diff b/src/test/mir-opt/const_promotion_extern_static.BAR.PromoteTemps.diff
index f8a7c687e124a..2ef4378115fbe 100644
--- a/src/test/mir-opt/const_promotion_extern_static.BAR.PromoteTemps.diff
+++ b/src/test/mir-opt/const_promotion_extern_static.BAR.PromoteTemps.diff
@@ -2,49 +2,49 @@
 + // MIR for `BAR` after PromoteTemps
   
   static mut BAR: *const &i32 = {
-      let mut _0: *const &i32;             // return place in scope 0 at $DIR/const-promotion-extern-static.rs:+0:17: +0:28
-      let mut _1: &[&i32];                 // in scope 0 at $DIR/const-promotion-extern-static.rs:+0:31: +0:44
-      let mut _2: &[&i32; 1];              // in scope 0 at $DIR/const-promotion-extern-static.rs:+0:31: +0:44
-      let _3: [&i32; 1];                   // in scope 0 at $DIR/const-promotion-extern-static.rs:+0:31: +0:35
-      let mut _4: &i32;                    // in scope 0 at $DIR/const-promotion-extern-static.rs:+0:32: +0:34
-      let _5: &i32;                        // in scope 0 at $DIR/const-promotion-extern-static.rs:+0:33: +0:34
-+     let mut _6: &[&i32; 1];              // in scope 0 at $DIR/const-promotion-extern-static.rs:+0:31: +0:44
+      let mut _0: *const &i32;             // return place in scope 0 at $DIR/const_promotion_extern_static.rs:+0:17: +0:28
+      let mut _1: &[&i32];                 // in scope 0 at $DIR/const_promotion_extern_static.rs:+0:31: +0:44
+      let mut _2: &[&i32; 1];              // in scope 0 at $DIR/const_promotion_extern_static.rs:+0:31: +0:44
+      let _3: [&i32; 1];                   // in scope 0 at $DIR/const_promotion_extern_static.rs:+0:31: +0:35
+      let mut _4: &i32;                    // in scope 0 at $DIR/const_promotion_extern_static.rs:+0:32: +0:34
+      let _5: &i32;                        // in scope 0 at $DIR/const_promotion_extern_static.rs:+0:33: +0:34
++     let mut _6: &[&i32; 1];              // in scope 0 at $DIR/const_promotion_extern_static.rs:+0:31: +0:44
   
       bb0: {
-          StorageLive(_1);                 // scope 0 at $DIR/const-promotion-extern-static.rs:+0:31: +0:44
-          StorageLive(_2);                 // scope 0 at $DIR/const-promotion-extern-static.rs:+0:31: +0:44
--         StorageLive(_3);                 // scope 0 at $DIR/const-promotion-extern-static.rs:+0:31: +0:35
--         StorageLive(_4);                 // scope 0 at $DIR/const-promotion-extern-static.rs:+0:32: +0:34
--         StorageLive(_5);                 // scope 0 at $DIR/const-promotion-extern-static.rs:+0:33: +0:34
--         _5 = const {alloc1: &i32};       // scope 0 at $DIR/const-promotion-extern-static.rs:+0:33: +0:34
-+         _6 = const _;                    // scope 0 at $DIR/const-promotion-extern-static.rs:+0:31: +0:44
+          StorageLive(_1);                 // scope 0 at $DIR/const_promotion_extern_static.rs:+0:31: +0:44
+          StorageLive(_2);                 // scope 0 at $DIR/const_promotion_extern_static.rs:+0:31: +0:44
+-         StorageLive(_3);                 // scope 0 at $DIR/const_promotion_extern_static.rs:+0:31: +0:35
+-         StorageLive(_4);                 // scope 0 at $DIR/const_promotion_extern_static.rs:+0:32: +0:34
+-         StorageLive(_5);                 // scope 0 at $DIR/const_promotion_extern_static.rs:+0:33: +0:34
+-         _5 = const {alloc1: &i32};       // scope 0 at $DIR/const_promotion_extern_static.rs:+0:33: +0:34
++         _6 = const _;                    // scope 0 at $DIR/const_promotion_extern_static.rs:+0:31: +0:44
                                            // mir::Constant
--                                          // + span: $DIR/const-promotion-extern-static.rs:9:33: 9:34
+-                                          // + span: $DIR/const_promotion_extern_static.rs:9:33: 9:34
 -                                          // + literal: Const { ty: &i32, val: Value(Scalar(alloc1)) }
--         _4 = &(*_5);                     // scope 0 at $DIR/const-promotion-extern-static.rs:+0:32: +0:34
--         _3 = [move _4];                  // scope 0 at $DIR/const-promotion-extern-static.rs:+0:31: +0:35
--         _2 = &_3;                        // scope 0 at $DIR/const-promotion-extern-static.rs:+0:31: +0:44
-+                                          // + span: $DIR/const-promotion-extern-static.rs:9:31: 9:44
+-         _4 = &(*_5);                     // scope 0 at $DIR/const_promotion_extern_static.rs:+0:32: +0:34
+-         _3 = [move _4];                  // scope 0 at $DIR/const_promotion_extern_static.rs:+0:31: +0:35
+-         _2 = &_3;                        // scope 0 at $DIR/const_promotion_extern_static.rs:+0:31: +0:44
++                                          // + span: $DIR/const_promotion_extern_static.rs:9:31: 9:44
 +                                          // + literal: Const { ty: &[&i32; 1], val: Unevaluated(BAR, [], Some(promoted[0])) }
-+         _2 = &(*_6);                     // scope 0 at $DIR/const-promotion-extern-static.rs:+0:31: +0:44
-          _1 = move _2 as &[&i32] (Pointer(Unsize)); // scope 0 at $DIR/const-promotion-extern-static.rs:+0:31: +0:44
--         StorageDead(_4);                 // scope 0 at $DIR/const-promotion-extern-static.rs:+0:34: +0:35
-          StorageDead(_2);                 // scope 0 at $DIR/const-promotion-extern-static.rs:+0:34: +0:35
-          _0 = core::slice::<impl [&i32]>::as_ptr(move _1) -> [return: bb1, unwind: bb2]; // scope 0 at $DIR/const-promotion-extern-static.rs:+0:31: +0:44
++         _2 = &(*_6);                     // scope 0 at $DIR/const_promotion_extern_static.rs:+0:31: +0:44
+          _1 = move _2 as &[&i32] (Pointer(Unsize)); // scope 0 at $DIR/const_promotion_extern_static.rs:+0:31: +0:44
+-         StorageDead(_4);                 // scope 0 at $DIR/const_promotion_extern_static.rs:+0:34: +0:35
+          StorageDead(_2);                 // scope 0 at $DIR/const_promotion_extern_static.rs:+0:34: +0:35
+          _0 = core::slice::<impl [&i32]>::as_ptr(move _1) -> [return: bb1, unwind: bb2]; // scope 0 at $DIR/const_promotion_extern_static.rs:+0:31: +0:44
                                            // mir::Constant
-                                           // + span: $DIR/const-promotion-extern-static.rs:9:36: 9:42
+                                           // + span: $DIR/const_promotion_extern_static.rs:9:36: 9:42
                                            // + literal: Const { ty: for<'a> fn(&'a [&i32]) -> *const &i32 {core::slice::<impl [&i32]>::as_ptr}, val: Value(<ZST>) }
       }
   
       bb1: {
--         StorageDead(_5);                 // scope 0 at $DIR/const-promotion-extern-static.rs:+0:43: +0:44
--         StorageDead(_3);                 // scope 0 at $DIR/const-promotion-extern-static.rs:+0:43: +0:44
-          StorageDead(_1);                 // scope 0 at $DIR/const-promotion-extern-static.rs:+0:43: +0:44
-          return;                          // scope 0 at $DIR/const-promotion-extern-static.rs:+0:1: +0:45
+-         StorageDead(_5);                 // scope 0 at $DIR/const_promotion_extern_static.rs:+0:43: +0:44
+-         StorageDead(_3);                 // scope 0 at $DIR/const_promotion_extern_static.rs:+0:43: +0:44
+          StorageDead(_1);                 // scope 0 at $DIR/const_promotion_extern_static.rs:+0:43: +0:44
+          return;                          // scope 0 at $DIR/const_promotion_extern_static.rs:+0:1: +0:45
       }
   
       bb2 (cleanup): {
-          resume;                          // scope 0 at $DIR/const-promotion-extern-static.rs:+0:1: +0:45
+          resume;                          // scope 0 at $DIR/const_promotion_extern_static.rs:+0:1: +0:45
       }
 - }
 - 
diff --git a/src/test/mir-opt/const_promotion_extern_static.BOP.built.after.mir b/src/test/mir-opt/const_promotion_extern_static.BOP.built.after.mir
index 5bda86bbd4f50..476fc49a1fe1b 100644
--- a/src/test/mir-opt/const_promotion_extern_static.BOP.built.after.mir
+++ b/src/test/mir-opt/const_promotion_extern_static.BOP.built.after.mir
@@ -1,17 +1,17 @@
 // MIR for `BOP` after built
 
 static BOP: &i32 = {
-    let mut _0: &i32;                    // return place in scope 0 at $DIR/const-promotion-extern-static.rs:+0:13: +0:17
-    let _1: &i32;                        // in scope 0 at $DIR/const-promotion-extern-static.rs:+0:20: +0:23
-    let _2: i32;                         // in scope 0 at $DIR/const-promotion-extern-static.rs:+0:21: +0:23
+    let mut _0: &i32;                    // return place in scope 0 at $DIR/const_promotion_extern_static.rs:+0:13: +0:17
+    let _1: &i32;                        // in scope 0 at $DIR/const_promotion_extern_static.rs:+0:20: +0:23
+    let _2: i32;                         // in scope 0 at $DIR/const_promotion_extern_static.rs:+0:21: +0:23
 
     bb0: {
-        StorageLive(_1);                 // scope 0 at $DIR/const-promotion-extern-static.rs:+0:20: +0:23
-        StorageLive(_2);                 // scope 0 at $DIR/const-promotion-extern-static.rs:+0:21: +0:23
-        _2 = const 13_i32;               // scope 0 at $DIR/const-promotion-extern-static.rs:+0:21: +0:23
-        _1 = &_2;                        // scope 0 at $DIR/const-promotion-extern-static.rs:+0:20: +0:23
-        _0 = &(*_1);                     // scope 0 at $DIR/const-promotion-extern-static.rs:+0:20: +0:23
-        StorageDead(_1);                 // scope 0 at $DIR/const-promotion-extern-static.rs:+0:22: +0:23
-        return;                          // scope 0 at $DIR/const-promotion-extern-static.rs:+0:1: +0:24
+        StorageLive(_1);                 // scope 0 at $DIR/const_promotion_extern_static.rs:+0:20: +0:23
+        StorageLive(_2);                 // scope 0 at $DIR/const_promotion_extern_static.rs:+0:21: +0:23
+        _2 = const 13_i32;               // scope 0 at $DIR/const_promotion_extern_static.rs:+0:21: +0:23
+        _1 = &_2;                        // scope 0 at $DIR/const_promotion_extern_static.rs:+0:20: +0:23
+        _0 = &(*_1);                     // scope 0 at $DIR/const_promotion_extern_static.rs:+0:20: +0:23
+        StorageDead(_1);                 // scope 0 at $DIR/const_promotion_extern_static.rs:+0:22: +0:23
+        return;                          // scope 0 at $DIR/const_promotion_extern_static.rs:+0:1: +0:24
     }
 }
diff --git a/src/test/mir-opt/const_promotion_extern_static.FOO-promoted[0].SimplifyCfg-elaborate-drops.after.mir b/src/test/mir-opt/const_promotion_extern_static.FOO-promoted[0].SimplifyCfg-elaborate-drops.after.mir
index 71827eab1c28b..41657b53fc12c 100644
--- a/src/test/mir-opt/const_promotion_extern_static.FOO-promoted[0].SimplifyCfg-elaborate-drops.after.mir
+++ b/src/test/mir-opt/const_promotion_extern_static.FOO-promoted[0].SimplifyCfg-elaborate-drops.after.mir
@@ -1,20 +1,20 @@
 // MIR for `FOO::promoted[0]` after SimplifyCfg-elaborate-drops
 
 promoted[0] in FOO: &[&i32; 1] = {
-    let mut _0: &[&i32; 1];              // return place in scope 0 at $DIR/const-promotion-extern-static.rs:+0:31: +0:55
-    let mut _1: [&i32; 1];               // in scope 0 at $DIR/const-promotion-extern-static.rs:+0:31: +0:46
-    let mut _2: &i32;                    // in scope 0 at $DIR/const-promotion-extern-static.rs:+0:32: +0:45
-    let mut _3: *const i32;              // in scope 0 at $DIR/const-promotion-extern-static.rs:+0:42: +0:43
+    let mut _0: &[&i32; 1];              // return place in scope 0 at $DIR/const_promotion_extern_static.rs:+0:31: +0:55
+    let mut _1: [&i32; 1];               // in scope 0 at $DIR/const_promotion_extern_static.rs:+0:31: +0:46
+    let mut _2: &i32;                    // in scope 0 at $DIR/const_promotion_extern_static.rs:+0:32: +0:45
+    let mut _3: *const i32;              // in scope 0 at $DIR/const_promotion_extern_static.rs:+0:42: +0:43
 
     bb0: {
-        _3 = const {alloc3: *const i32}; // scope 0 at $DIR/const-promotion-extern-static.rs:+0:42: +0:43
+        _3 = const {alloc3: *const i32}; // scope 0 at $DIR/const_promotion_extern_static.rs:+0:42: +0:43
                                          // mir::Constant
-                                         // + span: $DIR/const-promotion-extern-static.rs:13:42: 13:43
+                                         // + span: $DIR/const_promotion_extern_static.rs:13:42: 13:43
                                          // + literal: Const { ty: *const i32, val: Value(Scalar(alloc3)) }
-        _2 = &(*_3);                     // scope 0 at $DIR/const-promotion-extern-static.rs:+0:41: +0:43
-        _1 = [move _2];                  // scope 0 at $DIR/const-promotion-extern-static.rs:+0:31: +0:46
-        _0 = &_1;                        // scope 0 at $DIR/const-promotion-extern-static.rs:+0:31: +0:55
-        return;                          // scope 0 at $DIR/const-promotion-extern-static.rs:+0:31: +0:55
+        _2 = &(*_3);                     // scope 0 at $DIR/const_promotion_extern_static.rs:+0:41: +0:43
+        _1 = [move _2];                  // scope 0 at $DIR/const_promotion_extern_static.rs:+0:31: +0:46
+        _0 = &_1;                        // scope 0 at $DIR/const_promotion_extern_static.rs:+0:31: +0:55
+        return;                          // scope 0 at $DIR/const_promotion_extern_static.rs:+0:31: +0:55
     }
 }
 
diff --git a/src/test/mir-opt/const_promotion_extern_static.FOO.PromoteTemps.diff b/src/test/mir-opt/const_promotion_extern_static.FOO.PromoteTemps.diff
index e938ca28af5d6..25ba0face6bd8 100644
--- a/src/test/mir-opt/const_promotion_extern_static.FOO.PromoteTemps.diff
+++ b/src/test/mir-opt/const_promotion_extern_static.FOO.PromoteTemps.diff
@@ -2,51 +2,51 @@
 + // MIR for `FOO` after PromoteTemps
   
   static mut FOO: *const &i32 = {
-      let mut _0: *const &i32;             // return place in scope 0 at $DIR/const-promotion-extern-static.rs:+0:17: +0:28
-      let mut _1: &[&i32];                 // in scope 0 at $DIR/const-promotion-extern-static.rs:+0:31: +0:55
-      let mut _2: &[&i32; 1];              // in scope 0 at $DIR/const-promotion-extern-static.rs:+0:31: +0:55
-      let _3: [&i32; 1];                   // in scope 0 at $DIR/const-promotion-extern-static.rs:+0:31: +0:46
-      let mut _4: &i32;                    // in scope 0 at $DIR/const-promotion-extern-static.rs:+0:32: +0:45
-      let _5: *const i32;                  // in scope 0 at $DIR/const-promotion-extern-static.rs:+0:42: +0:43
-+     let mut _6: &[&i32; 1];              // in scope 0 at $DIR/const-promotion-extern-static.rs:+0:31: +0:55
+      let mut _0: *const &i32;             // return place in scope 0 at $DIR/const_promotion_extern_static.rs:+0:17: +0:28
+      let mut _1: &[&i32];                 // in scope 0 at $DIR/const_promotion_extern_static.rs:+0:31: +0:55
+      let mut _2: &[&i32; 1];              // in scope 0 at $DIR/const_promotion_extern_static.rs:+0:31: +0:55
+      let _3: [&i32; 1];                   // in scope 0 at $DIR/const_promotion_extern_static.rs:+0:31: +0:46
+      let mut _4: &i32;                    // in scope 0 at $DIR/const_promotion_extern_static.rs:+0:32: +0:45
+      let _5: *const i32;                  // in scope 0 at $DIR/const_promotion_extern_static.rs:+0:42: +0:43
++     let mut _6: &[&i32; 1];              // in scope 0 at $DIR/const_promotion_extern_static.rs:+0:31: +0:55
       scope 1 {
       }
   
       bb0: {
-          StorageLive(_1);                 // scope 0 at $DIR/const-promotion-extern-static.rs:+0:31: +0:55
-          StorageLive(_2);                 // scope 0 at $DIR/const-promotion-extern-static.rs:+0:31: +0:55
--         StorageLive(_3);                 // scope 0 at $DIR/const-promotion-extern-static.rs:+0:31: +0:46
--         StorageLive(_4);                 // scope 0 at $DIR/const-promotion-extern-static.rs:+0:32: +0:45
--         StorageLive(_5);                 // scope 1 at $DIR/const-promotion-extern-static.rs:+0:42: +0:43
--         _5 = const {alloc3: *const i32}; // scope 1 at $DIR/const-promotion-extern-static.rs:+0:42: +0:43
-+         _6 = const _;                    // scope 0 at $DIR/const-promotion-extern-static.rs:+0:31: +0:55
+          StorageLive(_1);                 // scope 0 at $DIR/const_promotion_extern_static.rs:+0:31: +0:55
+          StorageLive(_2);                 // scope 0 at $DIR/const_promotion_extern_static.rs:+0:31: +0:55
+-         StorageLive(_3);                 // scope 0 at $DIR/const_promotion_extern_static.rs:+0:31: +0:46
+-         StorageLive(_4);                 // scope 0 at $DIR/const_promotion_extern_static.rs:+0:32: +0:45
+-         StorageLive(_5);                 // scope 1 at $DIR/const_promotion_extern_static.rs:+0:42: +0:43
+-         _5 = const {alloc3: *const i32}; // scope 1 at $DIR/const_promotion_extern_static.rs:+0:42: +0:43
++         _6 = const _;                    // scope 0 at $DIR/const_promotion_extern_static.rs:+0:31: +0:55
                                            // mir::Constant
--                                          // + span: $DIR/const-promotion-extern-static.rs:13:42: 13:43
+-                                          // + span: $DIR/const_promotion_extern_static.rs:13:42: 13:43
 -                                          // + literal: Const { ty: *const i32, val: Value(Scalar(alloc3)) }
--         _4 = &(*_5);                     // scope 1 at $DIR/const-promotion-extern-static.rs:+0:41: +0:43
--         _3 = [move _4];                  // scope 0 at $DIR/const-promotion-extern-static.rs:+0:31: +0:46
--         _2 = &_3;                        // scope 0 at $DIR/const-promotion-extern-static.rs:+0:31: +0:55
-+                                          // + span: $DIR/const-promotion-extern-static.rs:13:31: 13:55
+-         _4 = &(*_5);                     // scope 1 at $DIR/const_promotion_extern_static.rs:+0:41: +0:43
+-         _3 = [move _4];                  // scope 0 at $DIR/const_promotion_extern_static.rs:+0:31: +0:46
+-         _2 = &_3;                        // scope 0 at $DIR/const_promotion_extern_static.rs:+0:31: +0:55
++                                          // + span: $DIR/const_promotion_extern_static.rs:13:31: 13:55
 +                                          // + literal: Const { ty: &[&i32; 1], val: Unevaluated(FOO, [], Some(promoted[0])) }
-+         _2 = &(*_6);                     // scope 0 at $DIR/const-promotion-extern-static.rs:+0:31: +0:55
-          _1 = move _2 as &[&i32] (Pointer(Unsize)); // scope 0 at $DIR/const-promotion-extern-static.rs:+0:31: +0:55
--         StorageDead(_4);                 // scope 0 at $DIR/const-promotion-extern-static.rs:+0:45: +0:46
-          StorageDead(_2);                 // scope 0 at $DIR/const-promotion-extern-static.rs:+0:45: +0:46
-          _0 = core::slice::<impl [&i32]>::as_ptr(move _1) -> [return: bb1, unwind: bb2]; // scope 0 at $DIR/const-promotion-extern-static.rs:+0:31: +0:55
++         _2 = &(*_6);                     // scope 0 at $DIR/const_promotion_extern_static.rs:+0:31: +0:55
+          _1 = move _2 as &[&i32] (Pointer(Unsize)); // scope 0 at $DIR/const_promotion_extern_static.rs:+0:31: +0:55
+-         StorageDead(_4);                 // scope 0 at $DIR/const_promotion_extern_static.rs:+0:45: +0:46
+          StorageDead(_2);                 // scope 0 at $DIR/const_promotion_extern_static.rs:+0:45: +0:46
+          _0 = core::slice::<impl [&i32]>::as_ptr(move _1) -> [return: bb1, unwind: bb2]; // scope 0 at $DIR/const_promotion_extern_static.rs:+0:31: +0:55
                                            // mir::Constant
-                                           // + span: $DIR/const-promotion-extern-static.rs:13:47: 13:53
+                                           // + span: $DIR/const_promotion_extern_static.rs:13:47: 13:53
                                            // + literal: Const { ty: for<'a> fn(&'a [&i32]) -> *const &i32 {core::slice::<impl [&i32]>::as_ptr}, val: Value(<ZST>) }
       }
   
       bb1: {
--         StorageDead(_5);                 // scope 0 at $DIR/const-promotion-extern-static.rs:+0:54: +0:55
--         StorageDead(_3);                 // scope 0 at $DIR/const-promotion-extern-static.rs:+0:54: +0:55
-          StorageDead(_1);                 // scope 0 at $DIR/const-promotion-extern-static.rs:+0:54: +0:55
-          return;                          // scope 0 at $DIR/const-promotion-extern-static.rs:+0:1: +0:56
+-         StorageDead(_5);                 // scope 0 at $DIR/const_promotion_extern_static.rs:+0:54: +0:55
+-         StorageDead(_3);                 // scope 0 at $DIR/const_promotion_extern_static.rs:+0:54: +0:55
+          StorageDead(_1);                 // scope 0 at $DIR/const_promotion_extern_static.rs:+0:54: +0:55
+          return;                          // scope 0 at $DIR/const_promotion_extern_static.rs:+0:1: +0:56
       }
   
       bb2 (cleanup): {
-          resume;                          // scope 0 at $DIR/const-promotion-extern-static.rs:+0:1: +0:56
+          resume;                          // scope 0 at $DIR/const_promotion_extern_static.rs:+0:1: +0:56
       }
   }
 - 
diff --git a/src/test/mir-opt/const-promotion-extern-static.rs b/src/test/mir-opt/const_promotion_extern_static.rs
similarity index 100%
rename from src/test/mir-opt/const-promotion-extern-static.rs
rename to src/test/mir-opt/const_promotion_extern_static.rs
diff --git a/src/test/mir-opt/const_prop/control_flow_simplification.hello.ConstProp.diff b/src/test/mir-opt/const_prop/control_flow_simplification.hello.ConstProp.diff
index a07bdd99825d6..8b3b9d0a4c1bb 100644
--- a/src/test/mir-opt/const_prop/control_flow_simplification.hello.ConstProp.diff
+++ b/src/test/mir-opt/const_prop/control_flow_simplification.hello.ConstProp.diff
@@ -2,15 +2,15 @@
 + // MIR for `hello` after ConstProp
   
   fn hello() -> () {
-      let mut _0: ();                      // return place in scope 0 at $DIR/control-flow-simplification.rs:+0:14: +0:14
-      let mut _1: bool;                    // in scope 0 at $DIR/control-flow-simplification.rs:+1:8: +1:21
+      let mut _0: ();                      // return place in scope 0 at $DIR/control_flow_simplification.rs:+0:14: +0:14
+      let mut _1: bool;                    // in scope 0 at $DIR/control_flow_simplification.rs:+1:8: +1:21
       let mut _2: !;                       // in scope 0 at $SRC_DIR/std/src/panic.rs:LL:COL
   
       bb0: {
-          StorageLive(_1);                 // scope 0 at $DIR/control-flow-simplification.rs:+1:8: +1:21
-          _1 = const _;                    // scope 0 at $DIR/control-flow-simplification.rs:+1:8: +1:21
--         switchInt(move _1) -> [false: bb2, otherwise: bb1]; // scope 0 at $DIR/control-flow-simplification.rs:+1:8: +1:21
-+         switchInt(const false) -> [false: bb2, otherwise: bb1]; // scope 0 at $DIR/control-flow-simplification.rs:+1:8: +1:21
+          StorageLive(_1);                 // scope 0 at $DIR/control_flow_simplification.rs:+1:8: +1:21
+          _1 = const _;                    // scope 0 at $DIR/control_flow_simplification.rs:+1:8: +1:21
+-         switchInt(move _1) -> [false: bb2, otherwise: bb1]; // scope 0 at $DIR/control_flow_simplification.rs:+1:8: +1:21
++         switchInt(const false) -> [false: bb2, otherwise: bb1]; // scope 0 at $DIR/control_flow_simplification.rs:+1:8: +1:21
       }
   
       bb1: {
@@ -25,9 +25,9 @@
       }
   
       bb2: {
-          nop;                             // scope 0 at $DIR/control-flow-simplification.rs:+3:6: +3:6
-          StorageDead(_1);                 // scope 0 at $DIR/control-flow-simplification.rs:+3:5: +3:6
-          return;                          // scope 0 at $DIR/control-flow-simplification.rs:+4:2: +4:2
+          nop;                             // scope 0 at $DIR/control_flow_simplification.rs:+3:6: +3:6
+          StorageDead(_1);                 // scope 0 at $DIR/control_flow_simplification.rs:+3:5: +3:6
+          return;                          // scope 0 at $DIR/control_flow_simplification.rs:+4:2: +4:2
       }
   }
   
diff --git a/src/test/mir-opt/const_prop/control_flow_simplification.hello.PreCodegen.before.mir b/src/test/mir-opt/const_prop/control_flow_simplification.hello.PreCodegen.before.mir
index 70f9797751131..9f7528f0ce170 100644
--- a/src/test/mir-opt/const_prop/control_flow_simplification.hello.PreCodegen.before.mir
+++ b/src/test/mir-opt/const_prop/control_flow_simplification.hello.PreCodegen.before.mir
@@ -1,9 +1,9 @@
 // MIR for `hello` before PreCodegen
 
 fn hello() -> () {
-    let mut _0: ();                      // return place in scope 0 at $DIR/control-flow-simplification.rs:+0:14: +0:14
+    let mut _0: ();                      // return place in scope 0 at $DIR/control_flow_simplification.rs:+0:14: +0:14
 
     bb0: {
-        return;                          // scope 0 at $DIR/control-flow-simplification.rs:+4:2: +4:2
+        return;                          // scope 0 at $DIR/control_flow_simplification.rs:+4:2: +4:2
     }
 }
diff --git a/src/test/mir-opt/const_prop/control-flow-simplification.rs b/src/test/mir-opt/const_prop/control_flow_simplification.rs
similarity index 100%
rename from src/test/mir-opt/const_prop/control-flow-simplification.rs
rename to src/test/mir-opt/const_prop/control_flow_simplification.rs
diff --git a/src/test/mir-opt/const_prop/issue_66971.main.ConstProp.diff b/src/test/mir-opt/const_prop/issue_66971.main.ConstProp.diff
index 9d541dcabbb2c..7d8e647cbcede 100644
--- a/src/test/mir-opt/const_prop/issue_66971.main.ConstProp.diff
+++ b/src/test/mir-opt/const_prop/issue_66971.main.ConstProp.diff
@@ -2,32 +2,32 @@
 + // MIR for `main` after ConstProp
   
   fn main() -> () {
-      let mut _0: ();                      // return place in scope 0 at $DIR/issue-66971.rs:+0:11: +0:11
-      let _1: ();                          // in scope 0 at $DIR/issue-66971.rs:+1:5: +1:23
-      let mut _2: ((), u8, u8);            // in scope 0 at $DIR/issue-66971.rs:+1:12: +1:22
-      let mut _3: ();                      // in scope 0 at $DIR/issue-66971.rs:+1:13: +1:15
+      let mut _0: ();                      // return place in scope 0 at $DIR/issue_66971.rs:+0:11: +0:11
+      let _1: ();                          // in scope 0 at $DIR/issue_66971.rs:+1:5: +1:23
+      let mut _2: ((), u8, u8);            // in scope 0 at $DIR/issue_66971.rs:+1:12: +1:22
+      let mut _3: ();                      // in scope 0 at $DIR/issue_66971.rs:+1:13: +1:15
   
       bb0: {
-          StorageLive(_1);                 // scope 0 at $DIR/issue-66971.rs:+1:5: +1:23
-          StorageLive(_2);                 // scope 0 at $DIR/issue-66971.rs:+1:12: +1:22
-          StorageLive(_3);                 // scope 0 at $DIR/issue-66971.rs:+1:13: +1:15
-          nop;                             // scope 0 at $DIR/issue-66971.rs:+1:13: +1:15
-          Deinit(_2);                      // scope 0 at $DIR/issue-66971.rs:+1:12: +1:22
-          nop;                             // scope 0 at $DIR/issue-66971.rs:+1:12: +1:22
-          (_2.1: u8) = const 0_u8;         // scope 0 at $DIR/issue-66971.rs:+1:12: +1:22
-          (_2.2: u8) = const 0_u8;         // scope 0 at $DIR/issue-66971.rs:+1:12: +1:22
-          StorageDead(_3);                 // scope 0 at $DIR/issue-66971.rs:+1:21: +1:22
-          _1 = encode(move _2) -> bb1;     // scope 0 at $DIR/issue-66971.rs:+1:5: +1:23
+          StorageLive(_1);                 // scope 0 at $DIR/issue_66971.rs:+1:5: +1:23
+          StorageLive(_2);                 // scope 0 at $DIR/issue_66971.rs:+1:12: +1:22
+          StorageLive(_3);                 // scope 0 at $DIR/issue_66971.rs:+1:13: +1:15
+          nop;                             // scope 0 at $DIR/issue_66971.rs:+1:13: +1:15
+          Deinit(_2);                      // scope 0 at $DIR/issue_66971.rs:+1:12: +1:22
+          nop;                             // scope 0 at $DIR/issue_66971.rs:+1:12: +1:22
+          (_2.1: u8) = const 0_u8;         // scope 0 at $DIR/issue_66971.rs:+1:12: +1:22
+          (_2.2: u8) = const 0_u8;         // scope 0 at $DIR/issue_66971.rs:+1:12: +1:22
+          StorageDead(_3);                 // scope 0 at $DIR/issue_66971.rs:+1:21: +1:22
+          _1 = encode(move _2) -> bb1;     // scope 0 at $DIR/issue_66971.rs:+1:5: +1:23
                                            // mir::Constant
-                                           // + span: $DIR/issue-66971.rs:17:5: 17:11
+                                           // + span: $DIR/issue_66971.rs:17:5: 17:11
                                            // + literal: Const { ty: fn(((), u8, u8)) {encode}, val: Value(<ZST>) }
       }
   
       bb1: {
-          StorageDead(_2);                 // scope 0 at $DIR/issue-66971.rs:+1:22: +1:23
-          StorageDead(_1);                 // scope 0 at $DIR/issue-66971.rs:+1:23: +1:24
-          nop;                             // scope 0 at $DIR/issue-66971.rs:+0:11: +2:2
-          return;                          // scope 0 at $DIR/issue-66971.rs:+2:2: +2:2
+          StorageDead(_2);                 // scope 0 at $DIR/issue_66971.rs:+1:22: +1:23
+          StorageDead(_1);                 // scope 0 at $DIR/issue_66971.rs:+1:23: +1:24
+          nop;                             // scope 0 at $DIR/issue_66971.rs:+0:11: +2:2
+          return;                          // scope 0 at $DIR/issue_66971.rs:+2:2: +2:2
       }
   }
   
diff --git a/src/test/mir-opt/const_prop/issue-66971.rs b/src/test/mir-opt/const_prop/issue_66971.rs
similarity index 100%
rename from src/test/mir-opt/const_prop/issue-66971.rs
rename to src/test/mir-opt/const_prop/issue_66971.rs
diff --git a/src/test/mir-opt/const_prop/issue_67019.main.ConstProp.diff b/src/test/mir-opt/const_prop/issue_67019.main.ConstProp.diff
index b79d814760d9e..79cd8bf483969 100644
--- a/src/test/mir-opt/const_prop/issue_67019.main.ConstProp.diff
+++ b/src/test/mir-opt/const_prop/issue_67019.main.ConstProp.diff
@@ -2,33 +2,33 @@
 + // MIR for `main` after ConstProp
   
   fn main() -> () {
-      let mut _0: ();                      // return place in scope 0 at $DIR/issue-67019.rs:+0:11: +0:11
-      let _1: ();                          // in scope 0 at $DIR/issue-67019.rs:+1:5: +1:20
-      let mut _2: ((u8, u8),);             // in scope 0 at $DIR/issue-67019.rs:+1:10: +1:19
-      let mut _3: (u8, u8);                // in scope 0 at $DIR/issue-67019.rs:+1:11: +1:17
+      let mut _0: ();                      // return place in scope 0 at $DIR/issue_67019.rs:+0:11: +0:11
+      let _1: ();                          // in scope 0 at $DIR/issue_67019.rs:+1:5: +1:20
+      let mut _2: ((u8, u8),);             // in scope 0 at $DIR/issue_67019.rs:+1:10: +1:19
+      let mut _3: (u8, u8);                // in scope 0 at $DIR/issue_67019.rs:+1:11: +1:17
   
       bb0: {
-          StorageLive(_1);                 // scope 0 at $DIR/issue-67019.rs:+1:5: +1:20
-          StorageLive(_2);                 // scope 0 at $DIR/issue-67019.rs:+1:10: +1:19
-          StorageLive(_3);                 // scope 0 at $DIR/issue-67019.rs:+1:11: +1:17
-          Deinit(_3);                      // scope 0 at $DIR/issue-67019.rs:+1:11: +1:17
-          (_3.0: u8) = const 1_u8;         // scope 0 at $DIR/issue-67019.rs:+1:11: +1:17
-          (_3.1: u8) = const 2_u8;         // scope 0 at $DIR/issue-67019.rs:+1:11: +1:17
-          Deinit(_2);                      // scope 0 at $DIR/issue-67019.rs:+1:10: +1:19
--         (_2.0: (u8, u8)) = move _3;      // scope 0 at $DIR/issue-67019.rs:+1:10: +1:19
-+         (_2.0: (u8, u8)) = const (1_u8, 2_u8); // scope 0 at $DIR/issue-67019.rs:+1:10: +1:19
-          StorageDead(_3);                 // scope 0 at $DIR/issue-67019.rs:+1:18: +1:19
-          _1 = test(move _2) -> bb1;       // scope 0 at $DIR/issue-67019.rs:+1:5: +1:20
+          StorageLive(_1);                 // scope 0 at $DIR/issue_67019.rs:+1:5: +1:20
+          StorageLive(_2);                 // scope 0 at $DIR/issue_67019.rs:+1:10: +1:19
+          StorageLive(_3);                 // scope 0 at $DIR/issue_67019.rs:+1:11: +1:17
+          Deinit(_3);                      // scope 0 at $DIR/issue_67019.rs:+1:11: +1:17
+          (_3.0: u8) = const 1_u8;         // scope 0 at $DIR/issue_67019.rs:+1:11: +1:17
+          (_3.1: u8) = const 2_u8;         // scope 0 at $DIR/issue_67019.rs:+1:11: +1:17
+          Deinit(_2);                      // scope 0 at $DIR/issue_67019.rs:+1:10: +1:19
+-         (_2.0: (u8, u8)) = move _3;      // scope 0 at $DIR/issue_67019.rs:+1:10: +1:19
++         (_2.0: (u8, u8)) = const (1_u8, 2_u8); // scope 0 at $DIR/issue_67019.rs:+1:10: +1:19
+          StorageDead(_3);                 // scope 0 at $DIR/issue_67019.rs:+1:18: +1:19
+          _1 = test(move _2) -> bb1;       // scope 0 at $DIR/issue_67019.rs:+1:5: +1:20
                                            // mir::Constant
-                                           // + span: $DIR/issue-67019.rs:12:5: 12:9
+                                           // + span: $DIR/issue_67019.rs:12:5: 12:9
                                            // + literal: Const { ty: fn(((u8, u8),)) {test}, val: Value(<ZST>) }
       }
   
       bb1: {
-          StorageDead(_2);                 // scope 0 at $DIR/issue-67019.rs:+1:19: +1:20
-          StorageDead(_1);                 // scope 0 at $DIR/issue-67019.rs:+1:20: +1:21
-          nop;                             // scope 0 at $DIR/issue-67019.rs:+0:11: +2:2
-          return;                          // scope 0 at $DIR/issue-67019.rs:+2:2: +2:2
+          StorageDead(_2);                 // scope 0 at $DIR/issue_67019.rs:+1:19: +1:20
+          StorageDead(_1);                 // scope 0 at $DIR/issue_67019.rs:+1:20: +1:21
+          nop;                             // scope 0 at $DIR/issue_67019.rs:+0:11: +2:2
+          return;                          // scope 0 at $DIR/issue_67019.rs:+2:2: +2:2
       }
   }
   
diff --git a/src/test/mir-opt/const_prop/issue-67019.rs b/src/test/mir-opt/const_prop/issue_67019.rs
similarity index 100%
rename from src/test/mir-opt/const_prop/issue-67019.rs
rename to src/test/mir-opt/const_prop/issue_67019.rs
diff --git a/src/test/mir-opt/exponential_or.match_tuple.SimplifyCfg-initial.after.mir b/src/test/mir-opt/exponential_or.match_tuple.SimplifyCfg-initial.after.mir
index 96716a39a2bfd..08481777ed494 100644
--- a/src/test/mir-opt/exponential_or.match_tuple.SimplifyCfg-initial.after.mir
+++ b/src/test/mir-opt/exponential_or.match_tuple.SimplifyCfg-initial.after.mir
@@ -1,83 +1,83 @@
 // MIR for `match_tuple` after SimplifyCfg-initial
 
 fn match_tuple(_1: (u32, bool, Option<i32>, u32)) -> u32 {
-    debug x => _1;                       // in scope 0 at $DIR/exponential-or.rs:+0:16: +0:17
-    let mut _0: u32;                     // return place in scope 0 at $DIR/exponential-or.rs:+0:53: +0:56
-    let mut _2: isize;                   // in scope 0 at $DIR/exponential-or.rs:+2:37: +2:48
-    let mut _3: bool;                    // in scope 0 at $DIR/exponential-or.rs:+2:70: +2:77
-    let mut _4: bool;                    // in scope 0 at $DIR/exponential-or.rs:+2:70: +2:77
-    let mut _5: bool;                    // in scope 0 at $DIR/exponential-or.rs:+2:62: +2:67
-    let mut _6: bool;                    // in scope 0 at $DIR/exponential-or.rs:+2:62: +2:67
-    let _7: u32;                         // in scope 0 at $DIR/exponential-or.rs:+2:10: +2:11
-    let _8: u32;                         // in scope 0 at $DIR/exponential-or.rs:+2:57: +2:58
-    let mut _9: u32;                     // in scope 0 at $DIR/exponential-or.rs:+2:83: +2:84
-    let mut _10: u32;                    // in scope 0 at $DIR/exponential-or.rs:+2:87: +2:88
+    debug x => _1;                       // in scope 0 at $DIR/exponential_or.rs:+0:16: +0:17
+    let mut _0: u32;                     // return place in scope 0 at $DIR/exponential_or.rs:+0:53: +0:56
+    let mut _2: isize;                   // in scope 0 at $DIR/exponential_or.rs:+2:37: +2:48
+    let mut _3: bool;                    // in scope 0 at $DIR/exponential_or.rs:+2:70: +2:77
+    let mut _4: bool;                    // in scope 0 at $DIR/exponential_or.rs:+2:70: +2:77
+    let mut _5: bool;                    // in scope 0 at $DIR/exponential_or.rs:+2:62: +2:67
+    let mut _6: bool;                    // in scope 0 at $DIR/exponential_or.rs:+2:62: +2:67
+    let _7: u32;                         // in scope 0 at $DIR/exponential_or.rs:+2:10: +2:11
+    let _8: u32;                         // in scope 0 at $DIR/exponential_or.rs:+2:57: +2:58
+    let mut _9: u32;                     // in scope 0 at $DIR/exponential_or.rs:+2:83: +2:84
+    let mut _10: u32;                    // in scope 0 at $DIR/exponential_or.rs:+2:87: +2:88
     scope 1 {
-        debug y => _7;                   // in scope 1 at $DIR/exponential-or.rs:+2:10: +2:11
-        debug z => _8;                   // in scope 1 at $DIR/exponential-or.rs:+2:57: +2:58
+        debug y => _7;                   // in scope 1 at $DIR/exponential_or.rs:+2:10: +2:11
+        debug z => _8;                   // in scope 1 at $DIR/exponential_or.rs:+2:57: +2:58
     }
 
     bb0: {
-        FakeRead(ForMatchedPlace(None), _1); // scope 0 at $DIR/exponential-or.rs:+1:11: +1:12
-        switchInt((_1.0: u32)) -> [1_u32: bb2, 4_u32: bb2, otherwise: bb1]; // scope 0 at $DIR/exponential-or.rs:+2:15: +2:20
+        FakeRead(ForMatchedPlace(None), _1); // scope 0 at $DIR/exponential_or.rs:+1:11: +1:12
+        switchInt((_1.0: u32)) -> [1_u32: bb2, 4_u32: bb2, otherwise: bb1]; // scope 0 at $DIR/exponential_or.rs:+2:15: +2:20
     }
 
     bb1: {
-        _0 = const 0_u32;                // scope 0 at $DIR/exponential-or.rs:+3:14: +3:15
-        goto -> bb10;                    // scope 0 at $DIR/exponential-or.rs:+3:14: +3:15
+        _0 = const 0_u32;                // scope 0 at $DIR/exponential_or.rs:+3:14: +3:15
+        goto -> bb10;                    // scope 0 at $DIR/exponential_or.rs:+3:14: +3:15
     }
 
     bb2: {
-        _2 = discriminant((_1.2: std::option::Option<i32>)); // scope 0 at $DIR/exponential-or.rs:+2:37: +2:55
-        switchInt(move _2) -> [0_isize: bb4, 1_isize: bb3, otherwise: bb1]; // scope 0 at $DIR/exponential-or.rs:+2:37: +2:55
+        _2 = discriminant((_1.2: std::option::Option<i32>)); // scope 0 at $DIR/exponential_or.rs:+2:37: +2:55
+        switchInt(move _2) -> [0_isize: bb4, 1_isize: bb3, otherwise: bb1]; // scope 0 at $DIR/exponential_or.rs:+2:37: +2:55
     }
 
     bb3: {
-        switchInt((((_1.2: std::option::Option<i32>) as Some).0: i32)) -> [1_i32: bb4, 8_i32: bb4, otherwise: bb1]; // scope 0 at $DIR/exponential-or.rs:+2:37: +2:55
+        switchInt((((_1.2: std::option::Option<i32>) as Some).0: i32)) -> [1_i32: bb4, 8_i32: bb4, otherwise: bb1]; // scope 0 at $DIR/exponential_or.rs:+2:37: +2:55
     }
 
     bb4: {
-        _5 = Le(const 6_u32, (_1.3: u32)); // scope 0 at $DIR/exponential-or.rs:+2:62: +2:67
-        switchInt(move _5) -> [false: bb6, otherwise: bb5]; // scope 0 at $DIR/exponential-or.rs:+2:62: +2:67
+        _5 = Le(const 6_u32, (_1.3: u32)); // scope 0 at $DIR/exponential_or.rs:+2:62: +2:67
+        switchInt(move _5) -> [false: bb6, otherwise: bb5]; // scope 0 at $DIR/exponential_or.rs:+2:62: +2:67
     }
 
     bb5: {
-        _6 = Le((_1.3: u32), const 9_u32); // scope 0 at $DIR/exponential-or.rs:+2:62: +2:67
-        switchInt(move _6) -> [false: bb6, otherwise: bb8]; // scope 0 at $DIR/exponential-or.rs:+2:62: +2:67
+        _6 = Le((_1.3: u32), const 9_u32); // scope 0 at $DIR/exponential_or.rs:+2:62: +2:67
+        switchInt(move _6) -> [false: bb6, otherwise: bb8]; // scope 0 at $DIR/exponential_or.rs:+2:62: +2:67
     }
 
     bb6: {
-        _3 = Le(const 13_u32, (_1.3: u32)); // scope 0 at $DIR/exponential-or.rs:+2:70: +2:77
-        switchInt(move _3) -> [false: bb1, otherwise: bb7]; // scope 0 at $DIR/exponential-or.rs:+2:70: +2:77
+        _3 = Le(const 13_u32, (_1.3: u32)); // scope 0 at $DIR/exponential_or.rs:+2:70: +2:77
+        switchInt(move _3) -> [false: bb1, otherwise: bb7]; // scope 0 at $DIR/exponential_or.rs:+2:70: +2:77
     }
 
     bb7: {
-        _4 = Le((_1.3: u32), const 16_u32); // scope 0 at $DIR/exponential-or.rs:+2:70: +2:77
-        switchInt(move _4) -> [false: bb1, otherwise: bb8]; // scope 0 at $DIR/exponential-or.rs:+2:70: +2:77
+        _4 = Le((_1.3: u32), const 16_u32); // scope 0 at $DIR/exponential_or.rs:+2:70: +2:77
+        switchInt(move _4) -> [false: bb1, otherwise: bb8]; // scope 0 at $DIR/exponential_or.rs:+2:70: +2:77
     }
 
     bb8: {
-        falseEdge -> [real: bb9, imaginary: bb1]; // scope 0 at $DIR/exponential-or.rs:+2:9: +2:79
+        falseEdge -> [real: bb9, imaginary: bb1]; // scope 0 at $DIR/exponential_or.rs:+2:9: +2:79
     }
 
     bb9: {
-        StorageLive(_7);                 // scope 0 at $DIR/exponential-or.rs:+2:10: +2:11
-        _7 = (_1.0: u32);                // scope 0 at $DIR/exponential-or.rs:+2:10: +2:11
-        StorageLive(_8);                 // scope 0 at $DIR/exponential-or.rs:+2:57: +2:58
-        _8 = (_1.3: u32);                // scope 0 at $DIR/exponential-or.rs:+2:57: +2:58
-        StorageLive(_9);                 // scope 1 at $DIR/exponential-or.rs:+2:83: +2:84
-        _9 = _7;                         // scope 1 at $DIR/exponential-or.rs:+2:83: +2:84
-        StorageLive(_10);                // scope 1 at $DIR/exponential-or.rs:+2:87: +2:88
-        _10 = _8;                        // scope 1 at $DIR/exponential-or.rs:+2:87: +2:88
-        _0 = BitXor(move _9, move _10);  // scope 1 at $DIR/exponential-or.rs:+2:83: +2:88
-        StorageDead(_10);                // scope 1 at $DIR/exponential-or.rs:+2:87: +2:88
-        StorageDead(_9);                 // scope 1 at $DIR/exponential-or.rs:+2:87: +2:88
-        StorageDead(_8);                 // scope 0 at $DIR/exponential-or.rs:+2:87: +2:88
-        StorageDead(_7);                 // scope 0 at $DIR/exponential-or.rs:+2:87: +2:88
-        goto -> bb10;                    // scope 0 at $DIR/exponential-or.rs:+2:87: +2:88
+        StorageLive(_7);                 // scope 0 at $DIR/exponential_or.rs:+2:10: +2:11
+        _7 = (_1.0: u32);                // scope 0 at $DIR/exponential_or.rs:+2:10: +2:11
+        StorageLive(_8);                 // scope 0 at $DIR/exponential_or.rs:+2:57: +2:58
+        _8 = (_1.3: u32);                // scope 0 at $DIR/exponential_or.rs:+2:57: +2:58
+        StorageLive(_9);                 // scope 1 at $DIR/exponential_or.rs:+2:83: +2:84
+        _9 = _7;                         // scope 1 at $DIR/exponential_or.rs:+2:83: +2:84
+        StorageLive(_10);                // scope 1 at $DIR/exponential_or.rs:+2:87: +2:88
+        _10 = _8;                        // scope 1 at $DIR/exponential_or.rs:+2:87: +2:88
+        _0 = BitXor(move _9, move _10);  // scope 1 at $DIR/exponential_or.rs:+2:83: +2:88
+        StorageDead(_10);                // scope 1 at $DIR/exponential_or.rs:+2:87: +2:88
+        StorageDead(_9);                 // scope 1 at $DIR/exponential_or.rs:+2:87: +2:88
+        StorageDead(_8);                 // scope 0 at $DIR/exponential_or.rs:+2:87: +2:88
+        StorageDead(_7);                 // scope 0 at $DIR/exponential_or.rs:+2:87: +2:88
+        goto -> bb10;                    // scope 0 at $DIR/exponential_or.rs:+2:87: +2:88
     }
 
     bb10: {
-        return;                          // scope 0 at $DIR/exponential-or.rs:+5:2: +5:2
+        return;                          // scope 0 at $DIR/exponential_or.rs:+5:2: +5:2
     }
 }
diff --git a/src/test/mir-opt/exponential-or.rs b/src/test/mir-opt/exponential_or.rs
similarity index 100%
rename from src/test/mir-opt/exponential-or.rs
rename to src/test/mir-opt/exponential_or.rs
diff --git a/src/test/mir-opt/fn-ptr-shim.rs b/src/test/mir-opt/fn_ptr_shim.rs
similarity index 100%
rename from src/test/mir-opt/fn-ptr-shim.rs
rename to src/test/mir-opt/fn_ptr_shim.rs
diff --git a/src/test/mir-opt/generator_drop_cleanup.main-{closure#0}.generator_drop.0.mir b/src/test/mir-opt/generator_drop_cleanup.main-{closure#0}.generator_drop.0.mir
index c718138b6b37e..c3b08bf064892 100644
--- a/src/test/mir-opt/generator_drop_cleanup.main-{closure#0}.generator_drop.0.mir
+++ b/src/test/mir-opt/generator_drop_cleanup.main-{closure#0}.generator_drop.0.mir
@@ -14,71 +14,71 @@
     },
 } */
 
-fn main::{closure#0}(_1: *mut [generator@$DIR/generator-drop-cleanup.rs:10:15: 10:17]) -> () {
-    let mut _0: ();                      // return place in scope 0 at $DIR/generator-drop-cleanup.rs:+0:15: +3:6
-    let mut _2: ();                      // in scope 0 at $DIR/generator-drop-cleanup.rs:+0:15: +3:6
-    let _3: std::string::String;         // in scope 0 at $DIR/generator-drop-cleanup.rs:+1:13: +1:15
-    let _4: ();                          // in scope 0 at $DIR/generator-drop-cleanup.rs:+2:9: +2:14
-    let mut _5: ();                      // in scope 0 at $DIR/generator-drop-cleanup.rs:+2:9: +2:14
-    let mut _6: ();                      // in scope 0 at $DIR/generator-drop-cleanup.rs:+0:18: +0:18
-    let mut _7: ();                      // in scope 0 at $DIR/generator-drop-cleanup.rs:+0:15: +3:6
-    let mut _8: u32;                     // in scope 0 at $DIR/generator-drop-cleanup.rs:+0:15: +3:6
+fn main::{closure#0}(_1: *mut [generator@$DIR/generator_drop_cleanup.rs:10:15: 10:17]) -> () {
+    let mut _0: ();                      // return place in scope 0 at $DIR/generator_drop_cleanup.rs:+0:15: +3:6
+    let mut _2: ();                      // in scope 0 at $DIR/generator_drop_cleanup.rs:+0:15: +3:6
+    let _3: std::string::String;         // in scope 0 at $DIR/generator_drop_cleanup.rs:+1:13: +1:15
+    let _4: ();                          // in scope 0 at $DIR/generator_drop_cleanup.rs:+2:9: +2:14
+    let mut _5: ();                      // in scope 0 at $DIR/generator_drop_cleanup.rs:+2:9: +2:14
+    let mut _6: ();                      // in scope 0 at $DIR/generator_drop_cleanup.rs:+0:18: +0:18
+    let mut _7: ();                      // in scope 0 at $DIR/generator_drop_cleanup.rs:+0:15: +3:6
+    let mut _8: u32;                     // in scope 0 at $DIR/generator_drop_cleanup.rs:+0:15: +3:6
     scope 1 {
-        debug _s => (((*_1) as variant#3).0: std::string::String); // in scope 1 at $DIR/generator-drop-cleanup.rs:+1:13: +1:15
+        debug _s => (((*_1) as variant#3).0: std::string::String); // in scope 1 at $DIR/generator_drop_cleanup.rs:+1:13: +1:15
     }
 
     bb0: {
-        _8 = discriminant((*_1));        // scope 0 at $DIR/generator-drop-cleanup.rs:+0:15: +3:6
-        switchInt(move _8) -> [0_u32: bb7, 3_u32: bb10, otherwise: bb11]; // scope 0 at $DIR/generator-drop-cleanup.rs:+0:15: +3:6
+        _8 = discriminant((*_1));        // scope 0 at $DIR/generator_drop_cleanup.rs:+0:15: +3:6
+        switchInt(move _8) -> [0_u32: bb7, 3_u32: bb10, otherwise: bb11]; // scope 0 at $DIR/generator_drop_cleanup.rs:+0:15: +3:6
     }
 
     bb1: {
-        StorageDead(_5);                 // scope 1 at $DIR/generator-drop-cleanup.rs:+2:13: +2:14
-        StorageDead(_4);                 // scope 1 at $DIR/generator-drop-cleanup.rs:+2:14: +2:15
-        drop((((*_1) as variant#3).0: std::string::String)) -> [return: bb2, unwind: bb5]; // scope 0 at $DIR/generator-drop-cleanup.rs:+3:5: +3:6
+        StorageDead(_5);                 // scope 1 at $DIR/generator_drop_cleanup.rs:+2:13: +2:14
+        StorageDead(_4);                 // scope 1 at $DIR/generator_drop_cleanup.rs:+2:14: +2:15
+        drop((((*_1) as variant#3).0: std::string::String)) -> [return: bb2, unwind: bb5]; // scope 0 at $DIR/generator_drop_cleanup.rs:+3:5: +3:6
     }
 
     bb2: {
-        nop;                             // scope 0 at $DIR/generator-drop-cleanup.rs:+3:5: +3:6
-        goto -> bb8;                     // scope 0 at $DIR/generator-drop-cleanup.rs:+3:5: +3:6
+        nop;                             // scope 0 at $DIR/generator_drop_cleanup.rs:+3:5: +3:6
+        goto -> bb8;                     // scope 0 at $DIR/generator_drop_cleanup.rs:+3:5: +3:6
     }
 
     bb3: {
-        return;                          // scope 0 at $DIR/generator-drop-cleanup.rs:+0:15: +3:6
+        return;                          // scope 0 at $DIR/generator_drop_cleanup.rs:+0:15: +3:6
     }
 
     bb4 (cleanup): {
-        resume;                          // scope 0 at $DIR/generator-drop-cleanup.rs:+0:15: +3:6
+        resume;                          // scope 0 at $DIR/generator_drop_cleanup.rs:+0:15: +3:6
     }
 
     bb5 (cleanup): {
-        nop;                             // scope 0 at $DIR/generator-drop-cleanup.rs:+3:5: +3:6
-        goto -> bb4;                     // scope 0 at $DIR/generator-drop-cleanup.rs:+3:5: +3:6
+        nop;                             // scope 0 at $DIR/generator_drop_cleanup.rs:+3:5: +3:6
+        goto -> bb4;                     // scope 0 at $DIR/generator_drop_cleanup.rs:+3:5: +3:6
     }
 
     bb6: {
-        return;                          // scope 0 at $DIR/generator-drop-cleanup.rs:+0:15: +3:6
+        return;                          // scope 0 at $DIR/generator_drop_cleanup.rs:+0:15: +3:6
     }
 
     bb7: {
-        goto -> bb9;                     // scope 0 at $DIR/generator-drop-cleanup.rs:+0:15: +3:6
+        goto -> bb9;                     // scope 0 at $DIR/generator_drop_cleanup.rs:+0:15: +3:6
     }
 
     bb8: {
-        goto -> bb3;                     // scope 0 at $DIR/generator-drop-cleanup.rs:+3:5: +3:6
+        goto -> bb3;                     // scope 0 at $DIR/generator_drop_cleanup.rs:+3:5: +3:6
     }
 
     bb9: {
-        goto -> bb6;                     // scope 0 at $DIR/generator-drop-cleanup.rs:+0:15: +3:6
+        goto -> bb6;                     // scope 0 at $DIR/generator_drop_cleanup.rs:+0:15: +3:6
     }
 
     bb10: {
-        StorageLive(_4);                 // scope 0 at $DIR/generator-drop-cleanup.rs:+0:15: +3:6
-        StorageLive(_5);                 // scope 0 at $DIR/generator-drop-cleanup.rs:+0:15: +3:6
-        goto -> bb1;                     // scope 0 at $DIR/generator-drop-cleanup.rs:+0:15: +3:6
+        StorageLive(_4);                 // scope 0 at $DIR/generator_drop_cleanup.rs:+0:15: +3:6
+        StorageLive(_5);                 // scope 0 at $DIR/generator_drop_cleanup.rs:+0:15: +3:6
+        goto -> bb1;                     // scope 0 at $DIR/generator_drop_cleanup.rs:+0:15: +3:6
     }
 
     bb11: {
-        return;                          // scope 0 at $DIR/generator-drop-cleanup.rs:+0:15: +3:6
+        return;                          // scope 0 at $DIR/generator_drop_cleanup.rs:+0:15: +3:6
     }
 }
diff --git a/src/test/mir-opt/generator-drop-cleanup.rs b/src/test/mir-opt/generator_drop_cleanup.rs
similarity index 100%
rename from src/test/mir-opt/generator-drop-cleanup.rs
rename to src/test/mir-opt/generator_drop_cleanup.rs
diff --git a/src/test/mir-opt/generator_storage_dead_unwind.main-{closure#0}.StateTransform.before.mir b/src/test/mir-opt/generator_storage_dead_unwind.main-{closure#0}.StateTransform.before.mir
index 3184343f207b3..cfbe0aaf252dd 100644
--- a/src/test/mir-opt/generator_storage_dead_unwind.main-{closure#0}.StateTransform.before.mir
+++ b/src/test/mir-opt/generator_storage_dead_unwind.main-{closure#0}.StateTransform.before.mir
@@ -1,124 +1,124 @@
 // MIR for `main::{closure#0}` before StateTransform
 
-fn main::{closure#0}(_1: [generator@$DIR/generator-storage-dead-unwind.rs:22:16: 22:18], _2: ()) -> ()
+fn main::{closure#0}(_1: [generator@$DIR/generator_storage_dead_unwind.rs:22:16: 22:18], _2: ()) -> ()
 yields ()
  {
-    let mut _0: ();                      // return place in scope 0 at $DIR/generator-storage-dead-unwind.rs:+0:19: +0:19
-    let _3: Foo;                         // in scope 0 at $DIR/generator-storage-dead-unwind.rs:+1:13: +1:14
-    let _5: ();                          // in scope 0 at $DIR/generator-storage-dead-unwind.rs:+3:9: +3:14
-    let mut _6: ();                      // in scope 0 at $DIR/generator-storage-dead-unwind.rs:+3:9: +3:14
-    let _7: ();                          // in scope 0 at $DIR/generator-storage-dead-unwind.rs:+4:9: +4:16
-    let mut _8: Foo;                     // in scope 0 at $DIR/generator-storage-dead-unwind.rs:+4:14: +4:15
-    let _9: ();                          // in scope 0 at $DIR/generator-storage-dead-unwind.rs:+5:9: +5:16
-    let mut _10: Bar;                    // in scope 0 at $DIR/generator-storage-dead-unwind.rs:+5:14: +5:15
+    let mut _0: ();                      // return place in scope 0 at $DIR/generator_storage_dead_unwind.rs:+0:19: +0:19
+    let _3: Foo;                         // in scope 0 at $DIR/generator_storage_dead_unwind.rs:+1:13: +1:14
+    let _5: ();                          // in scope 0 at $DIR/generator_storage_dead_unwind.rs:+3:9: +3:14
+    let mut _6: ();                      // in scope 0 at $DIR/generator_storage_dead_unwind.rs:+3:9: +3:14
+    let _7: ();                          // in scope 0 at $DIR/generator_storage_dead_unwind.rs:+4:9: +4:16
+    let mut _8: Foo;                     // in scope 0 at $DIR/generator_storage_dead_unwind.rs:+4:14: +4:15
+    let _9: ();                          // in scope 0 at $DIR/generator_storage_dead_unwind.rs:+5:9: +5:16
+    let mut _10: Bar;                    // in scope 0 at $DIR/generator_storage_dead_unwind.rs:+5:14: +5:15
     scope 1 {
-        debug a => _3;                   // in scope 1 at $DIR/generator-storage-dead-unwind.rs:+1:13: +1:14
-        let _4: Bar;                     // in scope 1 at $DIR/generator-storage-dead-unwind.rs:+2:13: +2:14
+        debug a => _3;                   // in scope 1 at $DIR/generator_storage_dead_unwind.rs:+1:13: +1:14
+        let _4: Bar;                     // in scope 1 at $DIR/generator_storage_dead_unwind.rs:+2:13: +2:14
         scope 2 {
-            debug b => _4;               // in scope 2 at $DIR/generator-storage-dead-unwind.rs:+2:13: +2:14
+            debug b => _4;               // in scope 2 at $DIR/generator_storage_dead_unwind.rs:+2:13: +2:14
         }
     }
 
     bb0: {
-        StorageLive(_3);                 // scope 0 at $DIR/generator-storage-dead-unwind.rs:+1:13: +1:14
-        _3 = Foo(const 5_i32);           // scope 0 at $DIR/generator-storage-dead-unwind.rs:+1:17: +1:23
-        StorageLive(_4);                 // scope 1 at $DIR/generator-storage-dead-unwind.rs:+2:13: +2:14
-        _4 = Bar(const 6_i32);           // scope 1 at $DIR/generator-storage-dead-unwind.rs:+2:17: +2:23
-        StorageLive(_5);                 // scope 2 at $DIR/generator-storage-dead-unwind.rs:+3:9: +3:14
-        StorageLive(_6);                 // scope 2 at $DIR/generator-storage-dead-unwind.rs:+3:9: +3:14
-        _6 = ();                         // scope 2 at $DIR/generator-storage-dead-unwind.rs:+3:9: +3:14
-        _5 = yield(move _6) -> [resume: bb1, drop: bb6]; // scope 2 at $DIR/generator-storage-dead-unwind.rs:+3:9: +3:14
+        StorageLive(_3);                 // scope 0 at $DIR/generator_storage_dead_unwind.rs:+1:13: +1:14
+        _3 = Foo(const 5_i32);           // scope 0 at $DIR/generator_storage_dead_unwind.rs:+1:17: +1:23
+        StorageLive(_4);                 // scope 1 at $DIR/generator_storage_dead_unwind.rs:+2:13: +2:14
+        _4 = Bar(const 6_i32);           // scope 1 at $DIR/generator_storage_dead_unwind.rs:+2:17: +2:23
+        StorageLive(_5);                 // scope 2 at $DIR/generator_storage_dead_unwind.rs:+3:9: +3:14
+        StorageLive(_6);                 // scope 2 at $DIR/generator_storage_dead_unwind.rs:+3:9: +3:14
+        _6 = ();                         // scope 2 at $DIR/generator_storage_dead_unwind.rs:+3:9: +3:14
+        _5 = yield(move _6) -> [resume: bb1, drop: bb6]; // scope 2 at $DIR/generator_storage_dead_unwind.rs:+3:9: +3:14
     }
 
     bb1: {
-        StorageDead(_6);                 // scope 2 at $DIR/generator-storage-dead-unwind.rs:+3:13: +3:14
-        StorageDead(_5);                 // scope 2 at $DIR/generator-storage-dead-unwind.rs:+3:14: +3:15
-        StorageLive(_7);                 // scope 2 at $DIR/generator-storage-dead-unwind.rs:+4:9: +4:16
-        StorageLive(_8);                 // scope 2 at $DIR/generator-storage-dead-unwind.rs:+4:14: +4:15
-        _8 = move _3;                    // scope 2 at $DIR/generator-storage-dead-unwind.rs:+4:14: +4:15
-        _7 = take::<Foo>(move _8) -> [return: bb2, unwind: bb10]; // scope 2 at $DIR/generator-storage-dead-unwind.rs:+4:9: +4:16
+        StorageDead(_6);                 // scope 2 at $DIR/generator_storage_dead_unwind.rs:+3:13: +3:14
+        StorageDead(_5);                 // scope 2 at $DIR/generator_storage_dead_unwind.rs:+3:14: +3:15
+        StorageLive(_7);                 // scope 2 at $DIR/generator_storage_dead_unwind.rs:+4:9: +4:16
+        StorageLive(_8);                 // scope 2 at $DIR/generator_storage_dead_unwind.rs:+4:14: +4:15
+        _8 = move _3;                    // scope 2 at $DIR/generator_storage_dead_unwind.rs:+4:14: +4:15
+        _7 = take::<Foo>(move _8) -> [return: bb2, unwind: bb10]; // scope 2 at $DIR/generator_storage_dead_unwind.rs:+4:9: +4:16
                                          // mir::Constant
-                                         // + span: $DIR/generator-storage-dead-unwind.rs:26:9: 26:13
+                                         // + span: $DIR/generator_storage_dead_unwind.rs:26:9: 26:13
                                          // + literal: Const { ty: fn(Foo) {take::<Foo>}, val: Value(<ZST>) }
     }
 
     bb2: {
-        StorageDead(_8);                 // scope 2 at $DIR/generator-storage-dead-unwind.rs:+4:15: +4:16
-        StorageDead(_7);                 // scope 2 at $DIR/generator-storage-dead-unwind.rs:+4:16: +4:17
-        StorageLive(_9);                 // scope 2 at $DIR/generator-storage-dead-unwind.rs:+5:9: +5:16
-        StorageLive(_10);                // scope 2 at $DIR/generator-storage-dead-unwind.rs:+5:14: +5:15
-        _10 = move _4;                   // scope 2 at $DIR/generator-storage-dead-unwind.rs:+5:14: +5:15
-        _9 = take::<Bar>(move _10) -> [return: bb3, unwind: bb9]; // scope 2 at $DIR/generator-storage-dead-unwind.rs:+5:9: +5:16
+        StorageDead(_8);                 // scope 2 at $DIR/generator_storage_dead_unwind.rs:+4:15: +4:16
+        StorageDead(_7);                 // scope 2 at $DIR/generator_storage_dead_unwind.rs:+4:16: +4:17
+        StorageLive(_9);                 // scope 2 at $DIR/generator_storage_dead_unwind.rs:+5:9: +5:16
+        StorageLive(_10);                // scope 2 at $DIR/generator_storage_dead_unwind.rs:+5:14: +5:15
+        _10 = move _4;                   // scope 2 at $DIR/generator_storage_dead_unwind.rs:+5:14: +5:15
+        _9 = take::<Bar>(move _10) -> [return: bb3, unwind: bb9]; // scope 2 at $DIR/generator_storage_dead_unwind.rs:+5:9: +5:16
                                          // mir::Constant
-                                         // + span: $DIR/generator-storage-dead-unwind.rs:27:9: 27:13
+                                         // + span: $DIR/generator_storage_dead_unwind.rs:27:9: 27:13
                                          // + literal: Const { ty: fn(Bar) {take::<Bar>}, val: Value(<ZST>) }
     }
 
     bb3: {
-        StorageDead(_10);                // scope 2 at $DIR/generator-storage-dead-unwind.rs:+5:15: +5:16
-        StorageDead(_9);                 // scope 2 at $DIR/generator-storage-dead-unwind.rs:+5:16: +5:17
-        _0 = const ();                   // scope 0 at $DIR/generator-storage-dead-unwind.rs:+0:19: +6:6
-        StorageDead(_4);                 // scope 1 at $DIR/generator-storage-dead-unwind.rs:+6:5: +6:6
-        goto -> bb4;                     // scope 0 at $DIR/generator-storage-dead-unwind.rs:+6:5: +6:6
+        StorageDead(_10);                // scope 2 at $DIR/generator_storage_dead_unwind.rs:+5:15: +5:16
+        StorageDead(_9);                 // scope 2 at $DIR/generator_storage_dead_unwind.rs:+5:16: +5:17
+        _0 = const ();                   // scope 0 at $DIR/generator_storage_dead_unwind.rs:+0:19: +6:6
+        StorageDead(_4);                 // scope 1 at $DIR/generator_storage_dead_unwind.rs:+6:5: +6:6
+        goto -> bb4;                     // scope 0 at $DIR/generator_storage_dead_unwind.rs:+6:5: +6:6
     }
 
     bb4: {
-        StorageDead(_3);                 // scope 0 at $DIR/generator-storage-dead-unwind.rs:+6:5: +6:6
-        drop(_1) -> [return: bb5, unwind: bb14]; // scope 0 at $DIR/generator-storage-dead-unwind.rs:+6:5: +6:6
+        StorageDead(_3);                 // scope 0 at $DIR/generator_storage_dead_unwind.rs:+6:5: +6:6
+        drop(_1) -> [return: bb5, unwind: bb14]; // scope 0 at $DIR/generator_storage_dead_unwind.rs:+6:5: +6:6
     }
 
     bb5: {
-        return;                          // scope 0 at $DIR/generator-storage-dead-unwind.rs:+6:6: +6:6
+        return;                          // scope 0 at $DIR/generator_storage_dead_unwind.rs:+6:6: +6:6
     }
 
     bb6: {
-        StorageDead(_6);                 // scope 2 at $DIR/generator-storage-dead-unwind.rs:+3:13: +3:14
-        StorageDead(_5);                 // scope 2 at $DIR/generator-storage-dead-unwind.rs:+3:14: +3:15
-        StorageDead(_4);                 // scope 1 at $DIR/generator-storage-dead-unwind.rs:+6:5: +6:6
-        drop(_3) -> [return: bb7, unwind: bb15]; // scope 0 at $DIR/generator-storage-dead-unwind.rs:+6:5: +6:6
+        StorageDead(_6);                 // scope 2 at $DIR/generator_storage_dead_unwind.rs:+3:13: +3:14
+        StorageDead(_5);                 // scope 2 at $DIR/generator_storage_dead_unwind.rs:+3:14: +3:15
+        StorageDead(_4);                 // scope 1 at $DIR/generator_storage_dead_unwind.rs:+6:5: +6:6
+        drop(_3) -> [return: bb7, unwind: bb15]; // scope 0 at $DIR/generator_storage_dead_unwind.rs:+6:5: +6:6
     }
 
     bb7: {
-        StorageDead(_3);                 // scope 0 at $DIR/generator-storage-dead-unwind.rs:+6:5: +6:6
-        drop(_1) -> [return: bb8, unwind: bb14]; // scope 0 at $DIR/generator-storage-dead-unwind.rs:+6:5: +6:6
+        StorageDead(_3);                 // scope 0 at $DIR/generator_storage_dead_unwind.rs:+6:5: +6:6
+        drop(_1) -> [return: bb8, unwind: bb14]; // scope 0 at $DIR/generator_storage_dead_unwind.rs:+6:5: +6:6
     }
 
     bb8: {
-        generator_drop;                  // scope 0 at $DIR/generator-storage-dead-unwind.rs:+0:16: +6:6
+        generator_drop;                  // scope 0 at $DIR/generator_storage_dead_unwind.rs:+0:16: +6:6
     }
 
     bb9 (cleanup): {
-        StorageDead(_10);                // scope 2 at $DIR/generator-storage-dead-unwind.rs:+5:15: +5:16
-        StorageDead(_9);                 // scope 2 at $DIR/generator-storage-dead-unwind.rs:+5:16: +5:17
+        StorageDead(_10);                // scope 2 at $DIR/generator_storage_dead_unwind.rs:+5:15: +5:16
+        StorageDead(_9);                 // scope 2 at $DIR/generator_storage_dead_unwind.rs:+5:16: +5:17
         goto -> bb12;                    // scope 2 at no-location
     }
 
     bb10 (cleanup): {
-        goto -> bb11;                    // scope 2 at $DIR/generator-storage-dead-unwind.rs:+4:15: +4:16
+        goto -> bb11;                    // scope 2 at $DIR/generator_storage_dead_unwind.rs:+4:15: +4:16
     }
 
     bb11 (cleanup): {
-        StorageDead(_8);                 // scope 2 at $DIR/generator-storage-dead-unwind.rs:+4:15: +4:16
-        StorageDead(_7);                 // scope 2 at $DIR/generator-storage-dead-unwind.rs:+4:16: +4:17
+        StorageDead(_8);                 // scope 2 at $DIR/generator_storage_dead_unwind.rs:+4:15: +4:16
+        StorageDead(_7);                 // scope 2 at $DIR/generator_storage_dead_unwind.rs:+4:16: +4:17
         goto -> bb12;                    // scope 2 at no-location
     }
 
     bb12 (cleanup): {
-        StorageDead(_4);                 // scope 1 at $DIR/generator-storage-dead-unwind.rs:+6:5: +6:6
-        goto -> bb13;                    // scope 0 at $DIR/generator-storage-dead-unwind.rs:+6:5: +6:6
+        StorageDead(_4);                 // scope 1 at $DIR/generator_storage_dead_unwind.rs:+6:5: +6:6
+        goto -> bb13;                    // scope 0 at $DIR/generator_storage_dead_unwind.rs:+6:5: +6:6
     }
 
     bb13 (cleanup): {
-        StorageDead(_3);                 // scope 0 at $DIR/generator-storage-dead-unwind.rs:+6:5: +6:6
-        drop(_1) -> bb14;                // scope 0 at $DIR/generator-storage-dead-unwind.rs:+6:5: +6:6
+        StorageDead(_3);                 // scope 0 at $DIR/generator_storage_dead_unwind.rs:+6:5: +6:6
+        drop(_1) -> bb14;                // scope 0 at $DIR/generator_storage_dead_unwind.rs:+6:5: +6:6
     }
 
     bb14 (cleanup): {
-        resume;                          // scope 0 at $DIR/generator-storage-dead-unwind.rs:+0:16: +6:6
+        resume;                          // scope 0 at $DIR/generator_storage_dead_unwind.rs:+0:16: +6:6
     }
 
     bb15 (cleanup): {
-        StorageDead(_3);                 // scope 0 at $DIR/generator-storage-dead-unwind.rs:+6:5: +6:6
-        drop(_1) -> bb14;                // scope 0 at $DIR/generator-storage-dead-unwind.rs:+6:5: +6:6
+        StorageDead(_3);                 // scope 0 at $DIR/generator_storage_dead_unwind.rs:+6:5: +6:6
+        drop(_1) -> bb14;                // scope 0 at $DIR/generator_storage_dead_unwind.rs:+6:5: +6:6
     }
 }
diff --git a/src/test/mir-opt/generator-storage-dead-unwind.rs b/src/test/mir-opt/generator_storage_dead_unwind.rs
similarity index 100%
rename from src/test/mir-opt/generator-storage-dead-unwind.rs
rename to src/test/mir-opt/generator_storage_dead_unwind.rs
diff --git a/src/test/mir-opt/generator_tiny.main-{closure#0}.generator_resume.0.mir b/src/test/mir-opt/generator_tiny.main-{closure#0}.generator_resume.0.mir
index 07aeeaae012c9..fee6da2c6352f 100644
--- a/src/test/mir-opt/generator_tiny.main-{closure#0}.generator_resume.0.mir
+++ b/src/test/mir-opt/generator_tiny.main-{closure#0}.generator_resume.0.mir
@@ -14,71 +14,71 @@
     },
 } */
 
-fn main::{closure#0}(_1: Pin<&mut [generator@$DIR/generator-tiny.rs:19:16: 19:24]>, _2: u8) -> GeneratorState<(), ()> {
-    debug _x => _10;                     // in scope 0 at $DIR/generator-tiny.rs:+0:17: +0:19
-    let mut _0: std::ops::GeneratorState<(), ()>; // return place in scope 0 at $DIR/generator-tiny.rs:+0:16: +6:6
-    let _3: HasDrop;                     // in scope 0 at $DIR/generator-tiny.rs:+1:13: +1:15
-    let mut _4: !;                       // in scope 0 at $DIR/generator-tiny.rs:+2:9: +5:10
-    let mut _5: ();                      // in scope 0 at $DIR/generator-tiny.rs:+0:16: +6:6
-    let _6: u8;                          // in scope 0 at $DIR/generator-tiny.rs:+3:13: +3:18
-    let mut _7: ();                      // in scope 0 at $DIR/generator-tiny.rs:+3:13: +3:18
-    let _8: ();                          // in scope 0 at $DIR/generator-tiny.rs:+4:13: +4:21
-    let mut _9: ();                      // in scope 0 at $DIR/generator-tiny.rs:+0:25: +0:25
-    let _10: u8;                         // in scope 0 at $DIR/generator-tiny.rs:+0:17: +0:19
-    let mut _11: u32;                    // in scope 0 at $DIR/generator-tiny.rs:+0:16: +6:6
+fn main::{closure#0}(_1: Pin<&mut [generator@$DIR/generator_tiny.rs:19:16: 19:24]>, _2: u8) -> GeneratorState<(), ()> {
+    debug _x => _10;                     // in scope 0 at $DIR/generator_tiny.rs:+0:17: +0:19
+    let mut _0: std::ops::GeneratorState<(), ()>; // return place in scope 0 at $DIR/generator_tiny.rs:+0:16: +6:6
+    let _3: HasDrop;                     // in scope 0 at $DIR/generator_tiny.rs:+1:13: +1:15
+    let mut _4: !;                       // in scope 0 at $DIR/generator_tiny.rs:+2:9: +5:10
+    let mut _5: ();                      // in scope 0 at $DIR/generator_tiny.rs:+0:16: +6:6
+    let _6: u8;                          // in scope 0 at $DIR/generator_tiny.rs:+3:13: +3:18
+    let mut _7: ();                      // in scope 0 at $DIR/generator_tiny.rs:+3:13: +3:18
+    let _8: ();                          // in scope 0 at $DIR/generator_tiny.rs:+4:13: +4:21
+    let mut _9: ();                      // in scope 0 at $DIR/generator_tiny.rs:+0:25: +0:25
+    let _10: u8;                         // in scope 0 at $DIR/generator_tiny.rs:+0:17: +0:19
+    let mut _11: u32;                    // in scope 0 at $DIR/generator_tiny.rs:+0:16: +6:6
     scope 1 {
-        debug _d => (((*(_1.0: &mut [generator@$DIR/generator-tiny.rs:19:16: 19:24])) as variant#3).0: HasDrop); // in scope 1 at $DIR/generator-tiny.rs:+1:13: +1:15
+        debug _d => (((*(_1.0: &mut [generator@$DIR/generator_tiny.rs:19:16: 19:24])) as variant#3).0: HasDrop); // in scope 1 at $DIR/generator_tiny.rs:+1:13: +1:15
     }
 
     bb0: {
-        _11 = discriminant((*(_1.0: &mut [generator@$DIR/generator-tiny.rs:19:16: 19:24]))); // scope 0 at $DIR/generator-tiny.rs:+0:16: +6:6
-        switchInt(move _11) -> [0_u32: bb1, 3_u32: bb5, otherwise: bb6]; // scope 0 at $DIR/generator-tiny.rs:+0:16: +6:6
+        _11 = discriminant((*(_1.0: &mut [generator@$DIR/generator_tiny.rs:19:16: 19:24]))); // scope 0 at $DIR/generator_tiny.rs:+0:16: +6:6
+        switchInt(move _11) -> [0_u32: bb1, 3_u32: bb5, otherwise: bb6]; // scope 0 at $DIR/generator_tiny.rs:+0:16: +6:6
     }
 
     bb1: {
-        _10 = move _2;                   // scope 0 at $DIR/generator-tiny.rs:+0:16: +6:6
-        nop;                             // scope 0 at $DIR/generator-tiny.rs:+1:13: +1:15
-        (((*(_1.0: &mut [generator@$DIR/generator-tiny.rs:19:16: 19:24])) as variant#3).0: HasDrop) = HasDrop; // scope 0 at $DIR/generator-tiny.rs:+1:18: +1:25
-        StorageLive(_4);                 // scope 1 at $DIR/generator-tiny.rs:+2:9: +5:10
-        goto -> bb2;                     // scope 1 at $DIR/generator-tiny.rs:+2:9: +5:10
+        _10 = move _2;                   // scope 0 at $DIR/generator_tiny.rs:+0:16: +6:6
+        nop;                             // scope 0 at $DIR/generator_tiny.rs:+1:13: +1:15
+        (((*(_1.0: &mut [generator@$DIR/generator_tiny.rs:19:16: 19:24])) as variant#3).0: HasDrop) = HasDrop; // scope 0 at $DIR/generator_tiny.rs:+1:18: +1:25
+        StorageLive(_4);                 // scope 1 at $DIR/generator_tiny.rs:+2:9: +5:10
+        goto -> bb2;                     // scope 1 at $DIR/generator_tiny.rs:+2:9: +5:10
     }
 
     bb2: {
-        StorageLive(_6);                 // scope 1 at $DIR/generator-tiny.rs:+3:13: +3:18
-        StorageLive(_7);                 // scope 1 at $DIR/generator-tiny.rs:+3:13: +3:18
-        _7 = ();                         // scope 1 at $DIR/generator-tiny.rs:+3:13: +3:18
-        Deinit(_0);                      // scope 1 at $DIR/generator-tiny.rs:+3:13: +3:18
-        ((_0 as Yielded).0: ()) = move _7; // scope 1 at $DIR/generator-tiny.rs:+3:13: +3:18
-        discriminant(_0) = 0;            // scope 1 at $DIR/generator-tiny.rs:+3:13: +3:18
-        discriminant((*(_1.0: &mut [generator@$DIR/generator-tiny.rs:19:16: 19:24]))) = 3; // scope 1 at $DIR/generator-tiny.rs:+3:13: +3:18
-        return;                          // scope 1 at $DIR/generator-tiny.rs:+3:13: +3:18
+        StorageLive(_6);                 // scope 1 at $DIR/generator_tiny.rs:+3:13: +3:18
+        StorageLive(_7);                 // scope 1 at $DIR/generator_tiny.rs:+3:13: +3:18
+        _7 = ();                         // scope 1 at $DIR/generator_tiny.rs:+3:13: +3:18
+        Deinit(_0);                      // scope 1 at $DIR/generator_tiny.rs:+3:13: +3:18
+        ((_0 as Yielded).0: ()) = move _7; // scope 1 at $DIR/generator_tiny.rs:+3:13: +3:18
+        discriminant(_0) = 0;            // scope 1 at $DIR/generator_tiny.rs:+3:13: +3:18
+        discriminant((*(_1.0: &mut [generator@$DIR/generator_tiny.rs:19:16: 19:24]))) = 3; // scope 1 at $DIR/generator_tiny.rs:+3:13: +3:18
+        return;                          // scope 1 at $DIR/generator_tiny.rs:+3:13: +3:18
     }
 
     bb3: {
-        StorageDead(_7);                 // scope 1 at $DIR/generator-tiny.rs:+3:17: +3:18
-        StorageDead(_6);                 // scope 1 at $DIR/generator-tiny.rs:+3:18: +3:19
-        StorageLive(_8);                 // scope 1 at $DIR/generator-tiny.rs:+4:13: +4:21
-        _8 = callee() -> bb4;            // scope 1 at $DIR/generator-tiny.rs:+4:13: +4:21
+        StorageDead(_7);                 // scope 1 at $DIR/generator_tiny.rs:+3:17: +3:18
+        StorageDead(_6);                 // scope 1 at $DIR/generator_tiny.rs:+3:18: +3:19
+        StorageLive(_8);                 // scope 1 at $DIR/generator_tiny.rs:+4:13: +4:21
+        _8 = callee() -> bb4;            // scope 1 at $DIR/generator_tiny.rs:+4:13: +4:21
                                          // mir::Constant
-                                         // + span: $DIR/generator-tiny.rs:23:13: 23:19
+                                         // + span: $DIR/generator_tiny.rs:23:13: 23:19
                                          // + literal: Const { ty: fn() {callee}, val: Value(<ZST>) }
     }
 
     bb4: {
-        StorageDead(_8);                 // scope 1 at $DIR/generator-tiny.rs:+4:21: +4:22
-        _5 = const ();                   // scope 1 at $DIR/generator-tiny.rs:+2:14: +5:10
-        goto -> bb2;                     // scope 1 at $DIR/generator-tiny.rs:+2:9: +5:10
+        StorageDead(_8);                 // scope 1 at $DIR/generator_tiny.rs:+4:21: +4:22
+        _5 = const ();                   // scope 1 at $DIR/generator_tiny.rs:+2:14: +5:10
+        goto -> bb2;                     // scope 1 at $DIR/generator_tiny.rs:+2:9: +5:10
     }
 
     bb5: {
-        StorageLive(_4);                 // scope 0 at $DIR/generator-tiny.rs:+0:16: +6:6
-        StorageLive(_6);                 // scope 0 at $DIR/generator-tiny.rs:+0:16: +6:6
-        StorageLive(_7);                 // scope 0 at $DIR/generator-tiny.rs:+0:16: +6:6
-        _6 = move _2;                    // scope 0 at $DIR/generator-tiny.rs:+0:16: +6:6
-        goto -> bb3;                     // scope 0 at $DIR/generator-tiny.rs:+0:16: +6:6
+        StorageLive(_4);                 // scope 0 at $DIR/generator_tiny.rs:+0:16: +6:6
+        StorageLive(_6);                 // scope 0 at $DIR/generator_tiny.rs:+0:16: +6:6
+        StorageLive(_7);                 // scope 0 at $DIR/generator_tiny.rs:+0:16: +6:6
+        _6 = move _2;                    // scope 0 at $DIR/generator_tiny.rs:+0:16: +6:6
+        goto -> bb3;                     // scope 0 at $DIR/generator_tiny.rs:+0:16: +6:6
     }
 
     bb6: {
-        unreachable;                     // scope 0 at $DIR/generator-tiny.rs:+0:16: +6:6
+        unreachable;                     // scope 0 at $DIR/generator_tiny.rs:+0:16: +6:6
     }
 }
diff --git a/src/test/mir-opt/generator-tiny.rs b/src/test/mir-opt/generator_tiny.rs
similarity index 100%
rename from src/test/mir-opt/generator-tiny.rs
rename to src/test/mir-opt/generator_tiny.rs
diff --git a/src/test/mir-opt/if_condition_int.dont_opt_bool.SimplifyComparisonIntegral.diff b/src/test/mir-opt/if_condition_int.dont_opt_bool.SimplifyComparisonIntegral.diff
index 19b5ab44156f4..94180d2034399 100644
--- a/src/test/mir-opt/if_condition_int.dont_opt_bool.SimplifyComparisonIntegral.diff
+++ b/src/test/mir-opt/if_condition_int.dont_opt_bool.SimplifyComparisonIntegral.diff
@@ -2,29 +2,29 @@
 + // MIR for `dont_opt_bool` after SimplifyComparisonIntegral
   
   fn dont_opt_bool(_1: bool) -> u32 {
-      debug x => _1;                       // in scope 0 at $DIR/if-condition-int.rs:+0:18: +0:19
-      let mut _0: u32;                     // return place in scope 0 at $DIR/if-condition-int.rs:+0:30: +0:33
-      let mut _2: bool;                    // in scope 0 at $DIR/if-condition-int.rs:+1:8: +1:9
+      debug x => _1;                       // in scope 0 at $DIR/if_condition_int.rs:+0:18: +0:19
+      let mut _0: u32;                     // return place in scope 0 at $DIR/if_condition_int.rs:+0:30: +0:33
+      let mut _2: bool;                    // in scope 0 at $DIR/if_condition_int.rs:+1:8: +1:9
   
       bb0: {
-          StorageLive(_2);                 // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:9
-          _2 = _1;                         // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:9
-          switchInt(move _2) -> [false: bb2, otherwise: bb1]; // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:9
+          StorageLive(_2);                 // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:9
+          _2 = _1;                         // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:9
+          switchInt(move _2) -> [false: bb2, otherwise: bb1]; // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:9
       }
   
       bb1: {
-          _0 = const 0_u32;                // scope 0 at $DIR/if-condition-int.rs:+1:12: +1:13
-          goto -> bb3;                     // scope 0 at $DIR/if-condition-int.rs:+1:5: +1:26
+          _0 = const 0_u32;                // scope 0 at $DIR/if_condition_int.rs:+1:12: +1:13
+          goto -> bb3;                     // scope 0 at $DIR/if_condition_int.rs:+1:5: +1:26
       }
   
       bb2: {
-          _0 = const 1_u32;                // scope 0 at $DIR/if-condition-int.rs:+1:23: +1:24
-          goto -> bb3;                     // scope 0 at $DIR/if-condition-int.rs:+1:5: +1:26
+          _0 = const 1_u32;                // scope 0 at $DIR/if_condition_int.rs:+1:23: +1:24
+          goto -> bb3;                     // scope 0 at $DIR/if_condition_int.rs:+1:5: +1:26
       }
   
       bb3: {
-          StorageDead(_2);                 // scope 0 at $DIR/if-condition-int.rs:+1:25: +1:26
-          return;                          // scope 0 at $DIR/if-condition-int.rs:+2:2: +2:2
+          StorageDead(_2);                 // scope 0 at $DIR/if_condition_int.rs:+1:25: +1:26
+          return;                          // scope 0 at $DIR/if_condition_int.rs:+2:2: +2:2
       }
   }
   
diff --git a/src/test/mir-opt/if_condition_int.dont_opt_floats.SimplifyComparisonIntegral.diff b/src/test/mir-opt/if_condition_int.dont_opt_floats.SimplifyComparisonIntegral.diff
index 256af7b94be2c..b22c7eac622f5 100644
--- a/src/test/mir-opt/if_condition_int.dont_opt_floats.SimplifyComparisonIntegral.diff
+++ b/src/test/mir-opt/if_condition_int.dont_opt_floats.SimplifyComparisonIntegral.diff
@@ -2,33 +2,33 @@
 + // MIR for `dont_opt_floats` after SimplifyComparisonIntegral
   
   fn dont_opt_floats(_1: f32) -> i32 {
-      debug a => _1;                       // in scope 0 at $DIR/if-condition-int.rs:+0:20: +0:21
-      let mut _0: i32;                     // return place in scope 0 at $DIR/if-condition-int.rs:+0:31: +0:34
-      let mut _2: bool;                    // in scope 0 at $DIR/if-condition-int.rs:+1:8: +1:18
-      let mut _3: f32;                     // in scope 0 at $DIR/if-condition-int.rs:+1:8: +1:9
+      debug a => _1;                       // in scope 0 at $DIR/if_condition_int.rs:+0:20: +0:21
+      let mut _0: i32;                     // return place in scope 0 at $DIR/if_condition_int.rs:+0:31: +0:34
+      let mut _2: bool;                    // in scope 0 at $DIR/if_condition_int.rs:+1:8: +1:18
+      let mut _3: f32;                     // in scope 0 at $DIR/if_condition_int.rs:+1:8: +1:9
   
       bb0: {
-          StorageLive(_2);                 // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:18
-          StorageLive(_3);                 // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:9
-          _3 = _1;                         // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:9
-          _2 = Eq(move _3, const -42f32);  // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:18
-          StorageDead(_3);                 // scope 0 at $DIR/if-condition-int.rs:+1:17: +1:18
-          switchInt(move _2) -> [false: bb2, otherwise: bb1]; // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:18
+          StorageLive(_2);                 // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:18
+          StorageLive(_3);                 // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:9
+          _3 = _1;                         // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:9
+          _2 = Eq(move _3, const -42f32);  // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:18
+          StorageDead(_3);                 // scope 0 at $DIR/if_condition_int.rs:+1:17: +1:18
+          switchInt(move _2) -> [false: bb2, otherwise: bb1]; // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:18
       }
   
       bb1: {
-          _0 = const 0_i32;                // scope 0 at $DIR/if-condition-int.rs:+1:21: +1:22
-          goto -> bb3;                     // scope 0 at $DIR/if-condition-int.rs:+1:5: +1:35
+          _0 = const 0_i32;                // scope 0 at $DIR/if_condition_int.rs:+1:21: +1:22
+          goto -> bb3;                     // scope 0 at $DIR/if_condition_int.rs:+1:5: +1:35
       }
   
       bb2: {
-          _0 = const 1_i32;                // scope 0 at $DIR/if-condition-int.rs:+1:32: +1:33
-          goto -> bb3;                     // scope 0 at $DIR/if-condition-int.rs:+1:5: +1:35
+          _0 = const 1_i32;                // scope 0 at $DIR/if_condition_int.rs:+1:32: +1:33
+          goto -> bb3;                     // scope 0 at $DIR/if_condition_int.rs:+1:5: +1:35
       }
   
       bb3: {
-          StorageDead(_2);                 // scope 0 at $DIR/if-condition-int.rs:+1:34: +1:35
-          return;                          // scope 0 at $DIR/if-condition-int.rs:+2:2: +2:2
+          StorageDead(_2);                 // scope 0 at $DIR/if_condition_int.rs:+1:34: +1:35
+          return;                          // scope 0 at $DIR/if_condition_int.rs:+2:2: +2:2
       }
   }
   
diff --git a/src/test/mir-opt/if_condition_int.dont_remove_comparison.SimplifyComparisonIntegral.diff b/src/test/mir-opt/if_condition_int.dont_remove_comparison.SimplifyComparisonIntegral.diff
index ed53c9a956ca8..cc0995f99cfdf 100644
--- a/src/test/mir-opt/if_condition_int.dont_remove_comparison.SimplifyComparisonIntegral.diff
+++ b/src/test/mir-opt/if_condition_int.dont_remove_comparison.SimplifyComparisonIntegral.diff
@@ -2,57 +2,57 @@
 + // MIR for `dont_remove_comparison` after SimplifyComparisonIntegral
   
   fn dont_remove_comparison(_1: i8) -> i32 {
-      debug a => _1;                       // in scope 0 at $DIR/if-condition-int.rs:+0:27: +0:28
-      let mut _0: i32;                     // return place in scope 0 at $DIR/if-condition-int.rs:+0:37: +0:40
-      let _2: bool;                        // in scope 0 at $DIR/if-condition-int.rs:+1:9: +1:10
-      let mut _3: i8;                      // in scope 0 at $DIR/if-condition-int.rs:+1:13: +1:14
-      let mut _4: i32;                     // in scope 0 at $DIR/if-condition-int.rs:+3:23: +3:31
-      let mut _5: bool;                    // in scope 0 at $DIR/if-condition-int.rs:+3:23: +3:24
-      let mut _6: i32;                     // in scope 0 at $DIR/if-condition-int.rs:+4:23: +4:31
-      let mut _7: bool;                    // in scope 0 at $DIR/if-condition-int.rs:+4:23: +4:24
+      debug a => _1;                       // in scope 0 at $DIR/if_condition_int.rs:+0:27: +0:28
+      let mut _0: i32;                     // return place in scope 0 at $DIR/if_condition_int.rs:+0:37: +0:40
+      let _2: bool;                        // in scope 0 at $DIR/if_condition_int.rs:+1:9: +1:10
+      let mut _3: i8;                      // in scope 0 at $DIR/if_condition_int.rs:+1:13: +1:14
+      let mut _4: i32;                     // in scope 0 at $DIR/if_condition_int.rs:+3:23: +3:31
+      let mut _5: bool;                    // in scope 0 at $DIR/if_condition_int.rs:+3:23: +3:24
+      let mut _6: i32;                     // in scope 0 at $DIR/if_condition_int.rs:+4:23: +4:31
+      let mut _7: bool;                    // in scope 0 at $DIR/if_condition_int.rs:+4:23: +4:24
       scope 1 {
-          debug b => _2;                   // in scope 1 at $DIR/if-condition-int.rs:+1:9: +1:10
+          debug b => _2;                   // in scope 1 at $DIR/if_condition_int.rs:+1:9: +1:10
       }
   
       bb0: {
-          StorageLive(_2);                 // scope 0 at $DIR/if-condition-int.rs:+1:9: +1:10
-          StorageLive(_3);                 // scope 0 at $DIR/if-condition-int.rs:+1:13: +1:14
-          _3 = _1;                         // scope 0 at $DIR/if-condition-int.rs:+1:13: +1:14
--         _2 = Eq(move _3, const 17_i8);   // scope 0 at $DIR/if-condition-int.rs:+1:13: +1:20
--         StorageDead(_3);                 // scope 0 at $DIR/if-condition-int.rs:+1:19: +1:20
--         switchInt(_2) -> [false: bb2, otherwise: bb1]; // scope 1 at $DIR/if-condition-int.rs:+2:5: +2:12
-+         _2 = Eq(_3, const 17_i8);        // scope 0 at $DIR/if-condition-int.rs:+1:13: +1:20
-+         nop;                             // scope 0 at $DIR/if-condition-int.rs:+1:19: +1:20
-+         switchInt(move _3) -> [17_i8: bb1, otherwise: bb2]; // scope 1 at $DIR/if-condition-int.rs:+2:5: +2:12
+          StorageLive(_2);                 // scope 0 at $DIR/if_condition_int.rs:+1:9: +1:10
+          StorageLive(_3);                 // scope 0 at $DIR/if_condition_int.rs:+1:13: +1:14
+          _3 = _1;                         // scope 0 at $DIR/if_condition_int.rs:+1:13: +1:14
+-         _2 = Eq(move _3, const 17_i8);   // scope 0 at $DIR/if_condition_int.rs:+1:13: +1:20
+-         StorageDead(_3);                 // scope 0 at $DIR/if_condition_int.rs:+1:19: +1:20
+-         switchInt(_2) -> [false: bb2, otherwise: bb1]; // scope 1 at $DIR/if_condition_int.rs:+2:5: +2:12
++         _2 = Eq(_3, const 17_i8);        // scope 0 at $DIR/if_condition_int.rs:+1:13: +1:20
++         nop;                             // scope 0 at $DIR/if_condition_int.rs:+1:19: +1:20
++         switchInt(move _3) -> [17_i8: bb1, otherwise: bb2]; // scope 1 at $DIR/if_condition_int.rs:+2:5: +2:12
       }
   
       bb1: {
-+         StorageDead(_3);                 // scope 1 at $DIR/if-condition-int.rs:+2:5: +2:12
-          StorageLive(_6);                 // scope 1 at $DIR/if-condition-int.rs:+4:23: +4:31
-          StorageLive(_7);                 // scope 1 at $DIR/if-condition-int.rs:+4:23: +4:24
-          _7 = _2;                         // scope 1 at $DIR/if-condition-int.rs:+4:23: +4:24
-          _6 = move _7 as i32 (IntToInt);  // scope 1 at $DIR/if-condition-int.rs:+4:23: +4:31
-          StorageDead(_7);                 // scope 1 at $DIR/if-condition-int.rs:+4:30: +4:31
-          _0 = Add(const 100_i32, move _6); // scope 1 at $DIR/if-condition-int.rs:+4:17: +4:31
-          StorageDead(_6);                 // scope 1 at $DIR/if-condition-int.rs:+4:30: +4:31
-          goto -> bb3;                     // scope 1 at $DIR/if-condition-int.rs:+4:30: +4:31
++         StorageDead(_3);                 // scope 1 at $DIR/if_condition_int.rs:+2:5: +2:12
+          StorageLive(_6);                 // scope 1 at $DIR/if_condition_int.rs:+4:23: +4:31
+          StorageLive(_7);                 // scope 1 at $DIR/if_condition_int.rs:+4:23: +4:24
+          _7 = _2;                         // scope 1 at $DIR/if_condition_int.rs:+4:23: +4:24
+          _6 = move _7 as i32 (IntToInt);  // scope 1 at $DIR/if_condition_int.rs:+4:23: +4:31
+          StorageDead(_7);                 // scope 1 at $DIR/if_condition_int.rs:+4:30: +4:31
+          _0 = Add(const 100_i32, move _6); // scope 1 at $DIR/if_condition_int.rs:+4:17: +4:31
+          StorageDead(_6);                 // scope 1 at $DIR/if_condition_int.rs:+4:30: +4:31
+          goto -> bb3;                     // scope 1 at $DIR/if_condition_int.rs:+4:30: +4:31
       }
   
       bb2: {
-+         StorageDead(_3);                 // scope 1 at $DIR/if-condition-int.rs:+2:5: +2:12
-          StorageLive(_4);                 // scope 1 at $DIR/if-condition-int.rs:+3:23: +3:31
-          StorageLive(_5);                 // scope 1 at $DIR/if-condition-int.rs:+3:23: +3:24
-          _5 = _2;                         // scope 1 at $DIR/if-condition-int.rs:+3:23: +3:24
-          _4 = move _5 as i32 (IntToInt);  // scope 1 at $DIR/if-condition-int.rs:+3:23: +3:31
-          StorageDead(_5);                 // scope 1 at $DIR/if-condition-int.rs:+3:30: +3:31
-          _0 = Add(const 10_i32, move _4); // scope 1 at $DIR/if-condition-int.rs:+3:18: +3:31
-          StorageDead(_4);                 // scope 1 at $DIR/if-condition-int.rs:+3:30: +3:31
-          goto -> bb3;                     // scope 1 at $DIR/if-condition-int.rs:+3:30: +3:31
++         StorageDead(_3);                 // scope 1 at $DIR/if_condition_int.rs:+2:5: +2:12
+          StorageLive(_4);                 // scope 1 at $DIR/if_condition_int.rs:+3:23: +3:31
+          StorageLive(_5);                 // scope 1 at $DIR/if_condition_int.rs:+3:23: +3:24
+          _5 = _2;                         // scope 1 at $DIR/if_condition_int.rs:+3:23: +3:24
+          _4 = move _5 as i32 (IntToInt);  // scope 1 at $DIR/if_condition_int.rs:+3:23: +3:31
+          StorageDead(_5);                 // scope 1 at $DIR/if_condition_int.rs:+3:30: +3:31
+          _0 = Add(const 10_i32, move _4); // scope 1 at $DIR/if_condition_int.rs:+3:18: +3:31
+          StorageDead(_4);                 // scope 1 at $DIR/if_condition_int.rs:+3:30: +3:31
+          goto -> bb3;                     // scope 1 at $DIR/if_condition_int.rs:+3:30: +3:31
       }
   
       bb3: {
-          StorageDead(_2);                 // scope 0 at $DIR/if-condition-int.rs:+6:1: +6:2
-          return;                          // scope 0 at $DIR/if-condition-int.rs:+6:2: +6:2
+          StorageDead(_2);                 // scope 0 at $DIR/if_condition_int.rs:+6:1: +6:2
+          return;                          // scope 0 at $DIR/if_condition_int.rs:+6:2: +6:2
       }
   }
   
diff --git a/src/test/mir-opt/if_condition_int.opt_char.SimplifyComparisonIntegral.diff b/src/test/mir-opt/if_condition_int.opt_char.SimplifyComparisonIntegral.diff
index 9b64c379fee77..801ea04020343 100644
--- a/src/test/mir-opt/if_condition_int.opt_char.SimplifyComparisonIntegral.diff
+++ b/src/test/mir-opt/if_condition_int.opt_char.SimplifyComparisonIntegral.diff
@@ -2,38 +2,38 @@
 + // MIR for `opt_char` after SimplifyComparisonIntegral
   
   fn opt_char(_1: char) -> u32 {
-      debug x => _1;                       // in scope 0 at $DIR/if-condition-int.rs:+0:13: +0:14
-      let mut _0: u32;                     // return place in scope 0 at $DIR/if-condition-int.rs:+0:25: +0:28
-      let mut _2: bool;                    // in scope 0 at $DIR/if-condition-int.rs:+1:8: +1:16
-      let mut _3: char;                    // in scope 0 at $DIR/if-condition-int.rs:+1:8: +1:9
+      debug x => _1;                       // in scope 0 at $DIR/if_condition_int.rs:+0:13: +0:14
+      let mut _0: u32;                     // return place in scope 0 at $DIR/if_condition_int.rs:+0:25: +0:28
+      let mut _2: bool;                    // in scope 0 at $DIR/if_condition_int.rs:+1:8: +1:16
+      let mut _3: char;                    // in scope 0 at $DIR/if_condition_int.rs:+1:8: +1:9
   
       bb0: {
-          StorageLive(_2);                 // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:16
-          StorageLive(_3);                 // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:9
-          _3 = _1;                         // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:9
--         _2 = Eq(move _3, const 'x');     // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:16
--         StorageDead(_3);                 // scope 0 at $DIR/if-condition-int.rs:+1:15: +1:16
--         switchInt(move _2) -> [false: bb2, otherwise: bb1]; // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:16
-+         nop;                             // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:16
-+         nop;                             // scope 0 at $DIR/if-condition-int.rs:+1:15: +1:16
-+         switchInt(move _3) -> ['x': bb1, otherwise: bb2]; // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:16
+          StorageLive(_2);                 // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:16
+          StorageLive(_3);                 // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:9
+          _3 = _1;                         // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:9
+-         _2 = Eq(move _3, const 'x');     // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:16
+-         StorageDead(_3);                 // scope 0 at $DIR/if_condition_int.rs:+1:15: +1:16
+-         switchInt(move _2) -> [false: bb2, otherwise: bb1]; // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:16
++         nop;                             // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:16
++         nop;                             // scope 0 at $DIR/if_condition_int.rs:+1:15: +1:16
++         switchInt(move _3) -> ['x': bb1, otherwise: bb2]; // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:16
       }
   
       bb1: {
-+         StorageDead(_3);                 // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:16
-          _0 = const 0_u32;                // scope 0 at $DIR/if-condition-int.rs:+1:19: +1:20
-          goto -> bb3;                     // scope 0 at $DIR/if-condition-int.rs:+1:5: +1:33
++         StorageDead(_3);                 // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:16
+          _0 = const 0_u32;                // scope 0 at $DIR/if_condition_int.rs:+1:19: +1:20
+          goto -> bb3;                     // scope 0 at $DIR/if_condition_int.rs:+1:5: +1:33
       }
   
       bb2: {
-+         StorageDead(_3);                 // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:16
-          _0 = const 1_u32;                // scope 0 at $DIR/if-condition-int.rs:+1:30: +1:31
-          goto -> bb3;                     // scope 0 at $DIR/if-condition-int.rs:+1:5: +1:33
++         StorageDead(_3);                 // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:16
+          _0 = const 1_u32;                // scope 0 at $DIR/if_condition_int.rs:+1:30: +1:31
+          goto -> bb3;                     // scope 0 at $DIR/if_condition_int.rs:+1:5: +1:33
       }
   
       bb3: {
-          StorageDead(_2);                 // scope 0 at $DIR/if-condition-int.rs:+1:32: +1:33
-          return;                          // scope 0 at $DIR/if-condition-int.rs:+2:2: +2:2
+          StorageDead(_2);                 // scope 0 at $DIR/if_condition_int.rs:+1:32: +1:33
+          return;                          // scope 0 at $DIR/if_condition_int.rs:+2:2: +2:2
       }
   }
   
diff --git a/src/test/mir-opt/if_condition_int.opt_i8.SimplifyComparisonIntegral.diff b/src/test/mir-opt/if_condition_int.opt_i8.SimplifyComparisonIntegral.diff
index 8042d63bb34dd..4297f4d646645 100644
--- a/src/test/mir-opt/if_condition_int.opt_i8.SimplifyComparisonIntegral.diff
+++ b/src/test/mir-opt/if_condition_int.opt_i8.SimplifyComparisonIntegral.diff
@@ -2,38 +2,38 @@
 + // MIR for `opt_i8` after SimplifyComparisonIntegral
   
   fn opt_i8(_1: i8) -> u32 {
-      debug x => _1;                       // in scope 0 at $DIR/if-condition-int.rs:+0:11: +0:12
-      let mut _0: u32;                     // return place in scope 0 at $DIR/if-condition-int.rs:+0:21: +0:24
-      let mut _2: bool;                    // in scope 0 at $DIR/if-condition-int.rs:+1:8: +1:15
-      let mut _3: i8;                      // in scope 0 at $DIR/if-condition-int.rs:+1:8: +1:9
+      debug x => _1;                       // in scope 0 at $DIR/if_condition_int.rs:+0:11: +0:12
+      let mut _0: u32;                     // return place in scope 0 at $DIR/if_condition_int.rs:+0:21: +0:24
+      let mut _2: bool;                    // in scope 0 at $DIR/if_condition_int.rs:+1:8: +1:15
+      let mut _3: i8;                      // in scope 0 at $DIR/if_condition_int.rs:+1:8: +1:9
   
       bb0: {
-          StorageLive(_2);                 // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:15
-          StorageLive(_3);                 // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:9
-          _3 = _1;                         // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:9
--         _2 = Eq(move _3, const 42_i8);   // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:15
--         StorageDead(_3);                 // scope 0 at $DIR/if-condition-int.rs:+1:14: +1:15
--         switchInt(move _2) -> [false: bb2, otherwise: bb1]; // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:15
-+         nop;                             // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:15
-+         nop;                             // scope 0 at $DIR/if-condition-int.rs:+1:14: +1:15
-+         switchInt(move _3) -> [42_i8: bb1, otherwise: bb2]; // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:15
+          StorageLive(_2);                 // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:15
+          StorageLive(_3);                 // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:9
+          _3 = _1;                         // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:9
+-         _2 = Eq(move _3, const 42_i8);   // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:15
+-         StorageDead(_3);                 // scope 0 at $DIR/if_condition_int.rs:+1:14: +1:15
+-         switchInt(move _2) -> [false: bb2, otherwise: bb1]; // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:15
++         nop;                             // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:15
++         nop;                             // scope 0 at $DIR/if_condition_int.rs:+1:14: +1:15
++         switchInt(move _3) -> [42_i8: bb1, otherwise: bb2]; // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:15
       }
   
       bb1: {
-+         StorageDead(_3);                 // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:15
-          _0 = const 0_u32;                // scope 0 at $DIR/if-condition-int.rs:+1:18: +1:19
-          goto -> bb3;                     // scope 0 at $DIR/if-condition-int.rs:+1:5: +1:32
++         StorageDead(_3);                 // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:15
+          _0 = const 0_u32;                // scope 0 at $DIR/if_condition_int.rs:+1:18: +1:19
+          goto -> bb3;                     // scope 0 at $DIR/if_condition_int.rs:+1:5: +1:32
       }
   
       bb2: {
-+         StorageDead(_3);                 // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:15
-          _0 = const 1_u32;                // scope 0 at $DIR/if-condition-int.rs:+1:29: +1:30
-          goto -> bb3;                     // scope 0 at $DIR/if-condition-int.rs:+1:5: +1:32
++         StorageDead(_3);                 // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:15
+          _0 = const 1_u32;                // scope 0 at $DIR/if_condition_int.rs:+1:29: +1:30
+          goto -> bb3;                     // scope 0 at $DIR/if_condition_int.rs:+1:5: +1:32
       }
   
       bb3: {
-          StorageDead(_2);                 // scope 0 at $DIR/if-condition-int.rs:+1:31: +1:32
-          return;                          // scope 0 at $DIR/if-condition-int.rs:+2:2: +2:2
+          StorageDead(_2);                 // scope 0 at $DIR/if_condition_int.rs:+1:31: +1:32
+          return;                          // scope 0 at $DIR/if_condition_int.rs:+2:2: +2:2
       }
   }
   
diff --git a/src/test/mir-opt/if_condition_int.opt_multiple_ifs.SimplifyComparisonIntegral.diff b/src/test/mir-opt/if_condition_int.opt_multiple_ifs.SimplifyComparisonIntegral.diff
index a408de1ef3e97..8fb794abbd41f 100644
--- a/src/test/mir-opt/if_condition_int.opt_multiple_ifs.SimplifyComparisonIntegral.diff
+++ b/src/test/mir-opt/if_condition_int.opt_multiple_ifs.SimplifyComparisonIntegral.diff
@@ -2,64 +2,64 @@
 + // MIR for `opt_multiple_ifs` after SimplifyComparisonIntegral
   
   fn opt_multiple_ifs(_1: u32) -> u32 {
-      debug x => _1;                       // in scope 0 at $DIR/if-condition-int.rs:+0:21: +0:22
-      let mut _0: u32;                     // return place in scope 0 at $DIR/if-condition-int.rs:+0:32: +0:35
-      let mut _2: bool;                    // in scope 0 at $DIR/if-condition-int.rs:+1:8: +1:15
-      let mut _3: u32;                     // in scope 0 at $DIR/if-condition-int.rs:+1:8: +1:9
-      let mut _4: bool;                    // in scope 0 at $DIR/if-condition-int.rs:+3:15: +3:22
-      let mut _5: u32;                     // in scope 0 at $DIR/if-condition-int.rs:+3:15: +3:16
+      debug x => _1;                       // in scope 0 at $DIR/if_condition_int.rs:+0:21: +0:22
+      let mut _0: u32;                     // return place in scope 0 at $DIR/if_condition_int.rs:+0:32: +0:35
+      let mut _2: bool;                    // in scope 0 at $DIR/if_condition_int.rs:+1:8: +1:15
+      let mut _3: u32;                     // in scope 0 at $DIR/if_condition_int.rs:+1:8: +1:9
+      let mut _4: bool;                    // in scope 0 at $DIR/if_condition_int.rs:+3:15: +3:22
+      let mut _5: u32;                     // in scope 0 at $DIR/if_condition_int.rs:+3:15: +3:16
   
       bb0: {
-          StorageLive(_2);                 // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:15
-          StorageLive(_3);                 // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:9
-          _3 = _1;                         // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:9
--         _2 = Eq(move _3, const 42_u32);  // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:15
--         StorageDead(_3);                 // scope 0 at $DIR/if-condition-int.rs:+1:14: +1:15
--         switchInt(move _2) -> [false: bb2, otherwise: bb1]; // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:15
-+         nop;                             // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:15
-+         nop;                             // scope 0 at $DIR/if-condition-int.rs:+1:14: +1:15
-+         switchInt(move _3) -> [42_u32: bb1, otherwise: bb2]; // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:15
+          StorageLive(_2);                 // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:15
+          StorageLive(_3);                 // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:9
+          _3 = _1;                         // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:9
+-         _2 = Eq(move _3, const 42_u32);  // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:15
+-         StorageDead(_3);                 // scope 0 at $DIR/if_condition_int.rs:+1:14: +1:15
+-         switchInt(move _2) -> [false: bb2, otherwise: bb1]; // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:15
++         nop;                             // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:15
++         nop;                             // scope 0 at $DIR/if_condition_int.rs:+1:14: +1:15
++         switchInt(move _3) -> [42_u32: bb1, otherwise: bb2]; // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:15
       }
   
       bb1: {
-+         StorageDead(_3);                 // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:15
-          _0 = const 0_u32;                // scope 0 at $DIR/if-condition-int.rs:+2:9: +2:10
-          goto -> bb6;                     // scope 0 at $DIR/if-condition-int.rs:+1:5: +7:6
++         StorageDead(_3);                 // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:15
+          _0 = const 0_u32;                // scope 0 at $DIR/if_condition_int.rs:+2:9: +2:10
+          goto -> bb6;                     // scope 0 at $DIR/if_condition_int.rs:+1:5: +7:6
       }
   
       bb2: {
-+         StorageDead(_3);                 // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:15
-          StorageLive(_4);                 // scope 0 at $DIR/if-condition-int.rs:+3:15: +3:22
-          StorageLive(_5);                 // scope 0 at $DIR/if-condition-int.rs:+3:15: +3:16
-          _5 = _1;                         // scope 0 at $DIR/if-condition-int.rs:+3:15: +3:16
--         _4 = Ne(move _5, const 21_u32);  // scope 0 at $DIR/if-condition-int.rs:+3:15: +3:22
--         StorageDead(_5);                 // scope 0 at $DIR/if-condition-int.rs:+3:21: +3:22
--         switchInt(move _4) -> [false: bb4, otherwise: bb3]; // scope 0 at $DIR/if-condition-int.rs:+3:15: +3:22
-+         nop;                             // scope 0 at $DIR/if-condition-int.rs:+3:15: +3:22
-+         nop;                             // scope 0 at $DIR/if-condition-int.rs:+3:21: +3:22
-+         switchInt(move _5) -> [21_u32: bb4, otherwise: bb3]; // scope 0 at $DIR/if-condition-int.rs:+3:15: +3:22
++         StorageDead(_3);                 // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:15
+          StorageLive(_4);                 // scope 0 at $DIR/if_condition_int.rs:+3:15: +3:22
+          StorageLive(_5);                 // scope 0 at $DIR/if_condition_int.rs:+3:15: +3:16
+          _5 = _1;                         // scope 0 at $DIR/if_condition_int.rs:+3:15: +3:16
+-         _4 = Ne(move _5, const 21_u32);  // scope 0 at $DIR/if_condition_int.rs:+3:15: +3:22
+-         StorageDead(_5);                 // scope 0 at $DIR/if_condition_int.rs:+3:21: +3:22
+-         switchInt(move _4) -> [false: bb4, otherwise: bb3]; // scope 0 at $DIR/if_condition_int.rs:+3:15: +3:22
++         nop;                             // scope 0 at $DIR/if_condition_int.rs:+3:15: +3:22
++         nop;                             // scope 0 at $DIR/if_condition_int.rs:+3:21: +3:22
++         switchInt(move _5) -> [21_u32: bb4, otherwise: bb3]; // scope 0 at $DIR/if_condition_int.rs:+3:15: +3:22
       }
   
       bb3: {
-+         StorageDead(_5);                 // scope 0 at $DIR/if-condition-int.rs:+3:15: +3:22
-          _0 = const 1_u32;                // scope 0 at $DIR/if-condition-int.rs:+4:9: +4:10
-          goto -> bb5;                     // scope 0 at $DIR/if-condition-int.rs:+3:12: +7:6
++         StorageDead(_5);                 // scope 0 at $DIR/if_condition_int.rs:+3:15: +3:22
+          _0 = const 1_u32;                // scope 0 at $DIR/if_condition_int.rs:+4:9: +4:10
+          goto -> bb5;                     // scope 0 at $DIR/if_condition_int.rs:+3:12: +7:6
       }
   
       bb4: {
-+         StorageDead(_5);                 // scope 0 at $DIR/if-condition-int.rs:+3:15: +3:22
-          _0 = const 2_u32;                // scope 0 at $DIR/if-condition-int.rs:+6:9: +6:10
-          goto -> bb5;                     // scope 0 at $DIR/if-condition-int.rs:+3:12: +7:6
++         StorageDead(_5);                 // scope 0 at $DIR/if_condition_int.rs:+3:15: +3:22
+          _0 = const 2_u32;                // scope 0 at $DIR/if_condition_int.rs:+6:9: +6:10
+          goto -> bb5;                     // scope 0 at $DIR/if_condition_int.rs:+3:12: +7:6
       }
   
       bb5: {
-          StorageDead(_4);                 // scope 0 at $DIR/if-condition-int.rs:+7:5: +7:6
-          goto -> bb6;                     // scope 0 at $DIR/if-condition-int.rs:+1:5: +7:6
+          StorageDead(_4);                 // scope 0 at $DIR/if_condition_int.rs:+7:5: +7:6
+          goto -> bb6;                     // scope 0 at $DIR/if_condition_int.rs:+1:5: +7:6
       }
   
       bb6: {
-          StorageDead(_2);                 // scope 0 at $DIR/if-condition-int.rs:+7:5: +7:6
-          return;                          // scope 0 at $DIR/if-condition-int.rs:+8:2: +8:2
+          StorageDead(_2);                 // scope 0 at $DIR/if_condition_int.rs:+7:5: +7:6
+          return;                          // scope 0 at $DIR/if_condition_int.rs:+8:2: +8:2
       }
   }
   
diff --git a/src/test/mir-opt/if_condition_int.opt_negative.SimplifyComparisonIntegral.diff b/src/test/mir-opt/if_condition_int.opt_negative.SimplifyComparisonIntegral.diff
index 6802f89d9278b..992253ea780d9 100644
--- a/src/test/mir-opt/if_condition_int.opt_negative.SimplifyComparisonIntegral.diff
+++ b/src/test/mir-opt/if_condition_int.opt_negative.SimplifyComparisonIntegral.diff
@@ -2,38 +2,38 @@
 + // MIR for `opt_negative` after SimplifyComparisonIntegral
   
   fn opt_negative(_1: i32) -> u32 {
-      debug x => _1;                       // in scope 0 at $DIR/if-condition-int.rs:+0:17: +0:18
-      let mut _0: u32;                     // return place in scope 0 at $DIR/if-condition-int.rs:+0:28: +0:31
-      let mut _2: bool;                    // in scope 0 at $DIR/if-condition-int.rs:+1:8: +1:16
-      let mut _3: i32;                     // in scope 0 at $DIR/if-condition-int.rs:+1:8: +1:9
+      debug x => _1;                       // in scope 0 at $DIR/if_condition_int.rs:+0:17: +0:18
+      let mut _0: u32;                     // return place in scope 0 at $DIR/if_condition_int.rs:+0:28: +0:31
+      let mut _2: bool;                    // in scope 0 at $DIR/if_condition_int.rs:+1:8: +1:16
+      let mut _3: i32;                     // in scope 0 at $DIR/if_condition_int.rs:+1:8: +1:9
   
       bb0: {
-          StorageLive(_2);                 // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:16
-          StorageLive(_3);                 // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:9
-          _3 = _1;                         // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:9
--         _2 = Eq(move _3, const -42_i32); // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:16
--         StorageDead(_3);                 // scope 0 at $DIR/if-condition-int.rs:+1:15: +1:16
--         switchInt(move _2) -> [false: bb2, otherwise: bb1]; // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:16
-+         nop;                             // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:16
-+         nop;                             // scope 0 at $DIR/if-condition-int.rs:+1:15: +1:16
-+         switchInt(move _3) -> [-42_i32: bb1, otherwise: bb2]; // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:16
+          StorageLive(_2);                 // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:16
+          StorageLive(_3);                 // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:9
+          _3 = _1;                         // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:9
+-         _2 = Eq(move _3, const -42_i32); // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:16
+-         StorageDead(_3);                 // scope 0 at $DIR/if_condition_int.rs:+1:15: +1:16
+-         switchInt(move _2) -> [false: bb2, otherwise: bb1]; // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:16
++         nop;                             // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:16
++         nop;                             // scope 0 at $DIR/if_condition_int.rs:+1:15: +1:16
++         switchInt(move _3) -> [-42_i32: bb1, otherwise: bb2]; // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:16
       }
   
       bb1: {
-+         StorageDead(_3);                 // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:16
-          _0 = const 0_u32;                // scope 0 at $DIR/if-condition-int.rs:+1:19: +1:20
-          goto -> bb3;                     // scope 0 at $DIR/if-condition-int.rs:+1:5: +1:33
++         StorageDead(_3);                 // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:16
+          _0 = const 0_u32;                // scope 0 at $DIR/if_condition_int.rs:+1:19: +1:20
+          goto -> bb3;                     // scope 0 at $DIR/if_condition_int.rs:+1:5: +1:33
       }
   
       bb2: {
-+         StorageDead(_3);                 // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:16
-          _0 = const 1_u32;                // scope 0 at $DIR/if-condition-int.rs:+1:30: +1:31
-          goto -> bb3;                     // scope 0 at $DIR/if-condition-int.rs:+1:5: +1:33
++         StorageDead(_3);                 // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:16
+          _0 = const 1_u32;                // scope 0 at $DIR/if_condition_int.rs:+1:30: +1:31
+          goto -> bb3;                     // scope 0 at $DIR/if_condition_int.rs:+1:5: +1:33
       }
   
       bb3: {
-          StorageDead(_2);                 // scope 0 at $DIR/if-condition-int.rs:+1:32: +1:33
-          return;                          // scope 0 at $DIR/if-condition-int.rs:+2:2: +2:2
+          StorageDead(_2);                 // scope 0 at $DIR/if_condition_int.rs:+1:32: +1:33
+          return;                          // scope 0 at $DIR/if_condition_int.rs:+2:2: +2:2
       }
   }
   
diff --git a/src/test/mir-opt/if_condition_int.opt_u32.SimplifyComparisonIntegral.diff b/src/test/mir-opt/if_condition_int.opt_u32.SimplifyComparisonIntegral.diff
index 96387771d06f1..7cea9472d3a05 100644
--- a/src/test/mir-opt/if_condition_int.opt_u32.SimplifyComparisonIntegral.diff
+++ b/src/test/mir-opt/if_condition_int.opt_u32.SimplifyComparisonIntegral.diff
@@ -2,38 +2,38 @@
 + // MIR for `opt_u32` after SimplifyComparisonIntegral
   
   fn opt_u32(_1: u32) -> u32 {
-      debug x => _1;                       // in scope 0 at $DIR/if-condition-int.rs:+0:12: +0:13
-      let mut _0: u32;                     // return place in scope 0 at $DIR/if-condition-int.rs:+0:23: +0:26
-      let mut _2: bool;                    // in scope 0 at $DIR/if-condition-int.rs:+1:8: +1:15
-      let mut _3: u32;                     // in scope 0 at $DIR/if-condition-int.rs:+1:8: +1:9
+      debug x => _1;                       // in scope 0 at $DIR/if_condition_int.rs:+0:12: +0:13
+      let mut _0: u32;                     // return place in scope 0 at $DIR/if_condition_int.rs:+0:23: +0:26
+      let mut _2: bool;                    // in scope 0 at $DIR/if_condition_int.rs:+1:8: +1:15
+      let mut _3: u32;                     // in scope 0 at $DIR/if_condition_int.rs:+1:8: +1:9
   
       bb0: {
-          StorageLive(_2);                 // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:15
-          StorageLive(_3);                 // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:9
-          _3 = _1;                         // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:9
--         _2 = Eq(move _3, const 42_u32);  // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:15
--         StorageDead(_3);                 // scope 0 at $DIR/if-condition-int.rs:+1:14: +1:15
--         switchInt(move _2) -> [false: bb2, otherwise: bb1]; // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:15
-+         nop;                             // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:15
-+         nop;                             // scope 0 at $DIR/if-condition-int.rs:+1:14: +1:15
-+         switchInt(move _3) -> [42_u32: bb1, otherwise: bb2]; // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:15
+          StorageLive(_2);                 // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:15
+          StorageLive(_3);                 // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:9
+          _3 = _1;                         // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:9
+-         _2 = Eq(move _3, const 42_u32);  // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:15
+-         StorageDead(_3);                 // scope 0 at $DIR/if_condition_int.rs:+1:14: +1:15
+-         switchInt(move _2) -> [false: bb2, otherwise: bb1]; // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:15
++         nop;                             // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:15
++         nop;                             // scope 0 at $DIR/if_condition_int.rs:+1:14: +1:15
++         switchInt(move _3) -> [42_u32: bb1, otherwise: bb2]; // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:15
       }
   
       bb1: {
-+         StorageDead(_3);                 // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:15
-          _0 = const 0_u32;                // scope 0 at $DIR/if-condition-int.rs:+1:18: +1:19
-          goto -> bb3;                     // scope 0 at $DIR/if-condition-int.rs:+1:5: +1:32
++         StorageDead(_3);                 // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:15
+          _0 = const 0_u32;                // scope 0 at $DIR/if_condition_int.rs:+1:18: +1:19
+          goto -> bb3;                     // scope 0 at $DIR/if_condition_int.rs:+1:5: +1:32
       }
   
       bb2: {
-+         StorageDead(_3);                 // scope 0 at $DIR/if-condition-int.rs:+1:8: +1:15
-          _0 = const 1_u32;                // scope 0 at $DIR/if-condition-int.rs:+1:29: +1:30
-          goto -> bb3;                     // scope 0 at $DIR/if-condition-int.rs:+1:5: +1:32
++         StorageDead(_3);                 // scope 0 at $DIR/if_condition_int.rs:+1:8: +1:15
+          _0 = const 1_u32;                // scope 0 at $DIR/if_condition_int.rs:+1:29: +1:30
+          goto -> bb3;                     // scope 0 at $DIR/if_condition_int.rs:+1:5: +1:32
       }
   
       bb3: {
-          StorageDead(_2);                 // scope 0 at $DIR/if-condition-int.rs:+1:31: +1:32
-          return;                          // scope 0 at $DIR/if-condition-int.rs:+2:2: +2:2
+          StorageDead(_2);                 // scope 0 at $DIR/if_condition_int.rs:+1:31: +1:32
+          return;                          // scope 0 at $DIR/if_condition_int.rs:+2:2: +2:2
       }
   }
   
diff --git a/src/test/mir-opt/if-condition-int.rs b/src/test/mir-opt/if_condition_int.rs
similarity index 100%
rename from src/test/mir-opt/if-condition-int.rs
rename to src/test/mir-opt/if_condition_int.rs
diff --git a/src/test/mir-opt/inline/asm_unwind.main.Inline.diff b/src/test/mir-opt/inline/asm_unwind.main.Inline.diff
index 57072fc0ad392..f1b62ac38ba4b 100644
--- a/src/test/mir-opt/inline/asm_unwind.main.Inline.diff
+++ b/src/test/mir-opt/inline/asm_unwind.main.Inline.diff
@@ -2,44 +2,44 @@
 + // MIR for `main` after Inline
   
   fn main() -> () {
-      let mut _0: ();                      // return place in scope 0 at $DIR/asm-unwind.rs:+0:15: +0:15
-      let _1: ();                          // in scope 0 at $DIR/asm-unwind.rs:+1:5: +1:10
-+     scope 1 (inlined foo) {              // at $DIR/asm-unwind.rs:21:5: 21:10
-+         let _2: D;                       // in scope 1 at $DIR/asm-unwind.rs:15:9: 15:11
+      let mut _0: ();                      // return place in scope 0 at $DIR/asm_unwind.rs:+0:15: +0:15
+      let _1: ();                          // in scope 0 at $DIR/asm_unwind.rs:+1:5: +1:10
++     scope 1 (inlined foo) {              // at $DIR/asm_unwind.rs:21:5: 21:10
++         let _2: D;                       // in scope 1 at $DIR/asm_unwind.rs:15:9: 15:11
 +         scope 2 {
-+             debug _d => _2;              // in scope 2 at $DIR/asm-unwind.rs:15:9: 15:11
++             debug _d => _2;              // in scope 2 at $DIR/asm_unwind.rs:15:9: 15:11
 +             scope 3 {
 +             }
 +         }
 +     }
   
       bb0: {
-          StorageLive(_1);                 // scope 0 at $DIR/asm-unwind.rs:+1:5: +1:10
--         _1 = foo() -> bb1;               // scope 0 at $DIR/asm-unwind.rs:+1:5: +1:10
+          StorageLive(_1);                 // scope 0 at $DIR/asm_unwind.rs:+1:5: +1:10
+-         _1 = foo() -> bb1;               // scope 0 at $DIR/asm_unwind.rs:+1:5: +1:10
 -                                          // mir::Constant
--                                          // + span: $DIR/asm-unwind.rs:21:5: 21:8
+-                                          // + span: $DIR/asm_unwind.rs:21:5: 21:8
 -                                          // + literal: Const { ty: fn() {foo}, val: Value(<ZST>) }
-+         StorageLive(_2);                 // scope 1 at $DIR/asm-unwind.rs:15:9: 15:11
-+         asm!("", options(MAY_UNWIND)) -> [return: bb1, unwind: bb3]; // scope 3 at $DIR/asm-unwind.rs:16:14: 16:54
++         StorageLive(_2);                 // scope 1 at $DIR/asm_unwind.rs:15:9: 15:11
++         asm!("", options(MAY_UNWIND)) -> [return: bb1, unwind: bb3]; // scope 3 at $DIR/asm_unwind.rs:16:14: 16:54
       }
   
       bb1: {
-+         drop(_2) -> bb2;                 // scope 1 at $DIR/asm-unwind.rs:17:1: 17:2
++         drop(_2) -> bb2;                 // scope 1 at $DIR/asm_unwind.rs:17:1: 17:2
 +     }
 + 
 +     bb2: {
-+         StorageDead(_2);                 // scope 1 at $DIR/asm-unwind.rs:17:1: 17:2
-          StorageDead(_1);                 // scope 0 at $DIR/asm-unwind.rs:+1:10: +1:11
-          _0 = const ();                   // scope 0 at $DIR/asm-unwind.rs:+0:15: +2:2
-          return;                          // scope 0 at $DIR/asm-unwind.rs:+2:2: +2:2
++         StorageDead(_2);                 // scope 1 at $DIR/asm_unwind.rs:17:1: 17:2
+          StorageDead(_1);                 // scope 0 at $DIR/asm_unwind.rs:+1:10: +1:11
+          _0 = const ();                   // scope 0 at $DIR/asm_unwind.rs:+0:15: +2:2
+          return;                          // scope 0 at $DIR/asm_unwind.rs:+2:2: +2:2
 +     }
 + 
 +     bb3 (cleanup): {
-+         drop(_2) -> bb4;                 // scope 1 at $DIR/asm-unwind.rs:17:1: 17:2
++         drop(_2) -> bb4;                 // scope 1 at $DIR/asm_unwind.rs:17:1: 17:2
 +     }
 + 
 +     bb4 (cleanup): {
-+         resume;                          // scope 1 at $DIR/asm-unwind.rs:14:1: 17:2
++         resume;                          // scope 1 at $DIR/asm_unwind.rs:14:1: 17:2
       }
   }
   
diff --git a/src/test/mir-opt/inline/asm-unwind.rs b/src/test/mir-opt/inline/asm_unwind.rs
similarity index 100%
rename from src/test/mir-opt/inline/asm-unwind.rs
rename to src/test/mir-opt/inline/asm_unwind.rs
diff --git a/src/test/mir-opt/inline/caller_with_trivial_bound.foo.Inline.diff b/src/test/mir-opt/inline/caller_with_trivial_bound.foo.Inline.diff
index d7deb9c66cfa0..8b03006782b2c 100644
--- a/src/test/mir-opt/inline/caller_with_trivial_bound.foo.Inline.diff
+++ b/src/test/mir-opt/inline/caller_with_trivial_bound.foo.Inline.diff
@@ -2,32 +2,32 @@
 + // MIR for `foo` after Inline
   
   fn foo() -> () {
-      let mut _0: ();                      // return place in scope 0 at $DIR/caller-with-trivial-bound.rs:+1:1: +1:1
-      let mut _1: <IntFactory as Factory<T>>::Item; // in scope 0 at $DIR/caller-with-trivial-bound.rs:+4:9: +4:14
+      let mut _0: ();                      // return place in scope 0 at $DIR/caller_with_trivial_bound.rs:+1:1: +1:1
+      let mut _1: <IntFactory as Factory<T>>::Item; // in scope 0 at $DIR/caller_with_trivial_bound.rs:+4:9: +4:14
       scope 1 {
-          debug x => _1;                   // in scope 1 at $DIR/caller-with-trivial-bound.rs:+4:9: +4:14
+          debug x => _1;                   // in scope 1 at $DIR/caller_with_trivial_bound.rs:+4:9: +4:14
       }
   
       bb0: {
-          StorageLive(_1);                 // scope 0 at $DIR/caller-with-trivial-bound.rs:+4:9: +4:14
-          _1 = bar::<T>() -> bb1;          // scope 0 at $DIR/caller-with-trivial-bound.rs:+4:51: +4:61
+          StorageLive(_1);                 // scope 0 at $DIR/caller_with_trivial_bound.rs:+4:9: +4:14
+          _1 = bar::<T>() -> bb1;          // scope 0 at $DIR/caller_with_trivial_bound.rs:+4:51: +4:61
                                            // mir::Constant
-                                           // + span: $DIR/caller-with-trivial-bound.rs:20:51: 20:59
+                                           // + span: $DIR/caller_with_trivial_bound.rs:20:51: 20:59
                                            // + literal: Const { ty: fn() -> <IntFactory as Factory<T>>::Item {bar::<T>}, val: Value(<ZST>) }
       }
   
       bb1: {
-          _0 = const ();                   // scope 0 at $DIR/caller-with-trivial-bound.rs:+3:1: +5:2
-          drop(_1) -> [return: bb2, unwind: bb3]; // scope 0 at $DIR/caller-with-trivial-bound.rs:+5:1: +5:2
+          _0 = const ();                   // scope 0 at $DIR/caller_with_trivial_bound.rs:+3:1: +5:2
+          drop(_1) -> [return: bb2, unwind: bb3]; // scope 0 at $DIR/caller_with_trivial_bound.rs:+5:1: +5:2
       }
   
       bb2: {
-          StorageDead(_1);                 // scope 0 at $DIR/caller-with-trivial-bound.rs:+5:1: +5:2
-          return;                          // scope 0 at $DIR/caller-with-trivial-bound.rs:+5:2: +5:2
+          StorageDead(_1);                 // scope 0 at $DIR/caller_with_trivial_bound.rs:+5:1: +5:2
+          return;                          // scope 0 at $DIR/caller_with_trivial_bound.rs:+5:2: +5:2
       }
   
       bb3 (cleanup): {
-          resume;                          // scope 0 at $DIR/caller-with-trivial-bound.rs:+0:1: +5:2
+          resume;                          // scope 0 at $DIR/caller_with_trivial_bound.rs:+0:1: +5:2
       }
   }
   
diff --git a/src/test/mir-opt/inline/caller-with-trivial-bound.rs b/src/test/mir-opt/inline/caller_with_trivial_bound.rs
similarity index 100%
rename from src/test/mir-opt/inline/caller-with-trivial-bound.rs
rename to src/test/mir-opt/inline/caller_with_trivial_bound.rs
diff --git a/src/test/mir-opt/inline/dyn_trait.get_query.Inline.diff b/src/test/mir-opt/inline/dyn_trait.get_query.Inline.diff
index 1e95b5b29ff4e..284306a352d15 100644
--- a/src/test/mir-opt/inline/dyn_trait.get_query.Inline.diff
+++ b/src/test/mir-opt/inline/dyn_trait.get_query.Inline.diff
@@ -2,61 +2,61 @@
 + // MIR for `get_query` after Inline
   
   fn get_query(_1: &T) -> () {
-      debug t => _1;                       // in scope 0 at $DIR/dyn-trait.rs:+0:31: +0:32
-      let mut _0: ();                      // return place in scope 0 at $DIR/dyn-trait.rs:+0:38: +0:38
-      let _2: &<Q as Query>::C;            // in scope 0 at $DIR/dyn-trait.rs:+1:9: +1:10
-      let mut _3: &T;                      // in scope 0 at $DIR/dyn-trait.rs:+1:22: +1:23
-      let mut _4: &<Q as Query>::C;        // in scope 0 at $DIR/dyn-trait.rs:+2:23: +2:24
+      debug t => _1;                       // in scope 0 at $DIR/dyn_trait.rs:+0:31: +0:32
+      let mut _0: ();                      // return place in scope 0 at $DIR/dyn_trait.rs:+0:38: +0:38
+      let _2: &<Q as Query>::C;            // in scope 0 at $DIR/dyn_trait.rs:+1:9: +1:10
+      let mut _3: &T;                      // in scope 0 at $DIR/dyn_trait.rs:+1:22: +1:23
+      let mut _4: &<Q as Query>::C;        // in scope 0 at $DIR/dyn_trait.rs:+2:23: +2:24
       scope 1 {
-          debug c => _2;                   // in scope 1 at $DIR/dyn-trait.rs:+1:9: +1:10
-+         scope 2 (inlined try_execute_query::<<Q as Query>::C>) { // at $DIR/dyn-trait.rs:34:5: 34:25
-+             debug c => _4;               // in scope 2 at $DIR/dyn-trait.rs:26:36: 26:37
-+             let mut _5: &dyn Cache<V = <Q as Query>::V>; // in scope 2 at $DIR/dyn-trait.rs:27:14: 27:15
-+             let mut _6: &<Q as Query>::C; // in scope 2 at $DIR/dyn-trait.rs:27:14: 27:15
-+             scope 3 (inlined mk_cycle::<<Q as Query>::V>) { // at $DIR/dyn-trait.rs:27:5: 27:16
-+                 debug c => _5;           // in scope 3 at $DIR/dyn-trait.rs:20:27: 20:28
-+                 let mut _7: &dyn Cache<V = <Q as Query>::V>; // in scope 3 at $DIR/dyn-trait.rs:21:5: 21:22
+          debug c => _2;                   // in scope 1 at $DIR/dyn_trait.rs:+1:9: +1:10
++         scope 2 (inlined try_execute_query::<<Q as Query>::C>) { // at $DIR/dyn_trait.rs:34:5: 34:25
++             debug c => _4;               // in scope 2 at $DIR/dyn_trait.rs:26:36: 26:37
++             let mut _5: &dyn Cache<V = <Q as Query>::V>; // in scope 2 at $DIR/dyn_trait.rs:27:14: 27:15
++             let mut _6: &<Q as Query>::C; // in scope 2 at $DIR/dyn_trait.rs:27:14: 27:15
++             scope 3 (inlined mk_cycle::<<Q as Query>::V>) { // at $DIR/dyn_trait.rs:27:5: 27:16
++                 debug c => _5;           // in scope 3 at $DIR/dyn_trait.rs:20:27: 20:28
++                 let mut _7: &dyn Cache<V = <Q as Query>::V>; // in scope 3 at $DIR/dyn_trait.rs:21:5: 21:22
 +             }
 +         }
       }
   
       bb0: {
-          StorageLive(_2);                 // scope 0 at $DIR/dyn-trait.rs:+1:9: +1:10
-          StorageLive(_3);                 // scope 0 at $DIR/dyn-trait.rs:+1:22: +1:23
-          _3 = &(*_1);                     // scope 0 at $DIR/dyn-trait.rs:+1:22: +1:23
-          _2 = <Q as Query>::cache::<T>(move _3) -> bb1; // scope 0 at $DIR/dyn-trait.rs:+1:13: +1:24
+          StorageLive(_2);                 // scope 0 at $DIR/dyn_trait.rs:+1:9: +1:10
+          StorageLive(_3);                 // scope 0 at $DIR/dyn_trait.rs:+1:22: +1:23
+          _3 = &(*_1);                     // scope 0 at $DIR/dyn_trait.rs:+1:22: +1:23
+          _2 = <Q as Query>::cache::<T>(move _3) -> bb1; // scope 0 at $DIR/dyn_trait.rs:+1:13: +1:24
                                            // mir::Constant
-                                           // + span: $DIR/dyn-trait.rs:33:13: 33:21
+                                           // + span: $DIR/dyn_trait.rs:33:13: 33:21
                                            // + user_ty: UserType(0)
                                            // + literal: Const { ty: for<'a> fn(&'a T) -> &'a <Q as Query>::C {<Q as Query>::cache::<T>}, val: Value(<ZST>) }
       }
   
       bb1: {
-          StorageDead(_3);                 // scope 0 at $DIR/dyn-trait.rs:+1:23: +1:24
-          StorageLive(_4);                 // scope 1 at $DIR/dyn-trait.rs:+2:23: +2:24
-          _4 = &(*_2);                     // scope 1 at $DIR/dyn-trait.rs:+2:23: +2:24
--         _0 = try_execute_query::<<Q as Query>::C>(move _4) -> bb2; // scope 1 at $DIR/dyn-trait.rs:+2:5: +2:25
-+         StorageLive(_5);                 // scope 2 at $DIR/dyn-trait.rs:27:14: 27:15
-+         StorageLive(_6);                 // scope 2 at $DIR/dyn-trait.rs:27:14: 27:15
-+         _6 = _4;                         // scope 2 at $DIR/dyn-trait.rs:27:14: 27:15
-+         _5 = move _6 as &dyn Cache<V = <Q as Query>::V> (Pointer(Unsize)); // scope 2 at $DIR/dyn-trait.rs:27:14: 27:15
-+         StorageDead(_6);                 // scope 2 at $DIR/dyn-trait.rs:27:14: 27:15
-+         StorageLive(_7);                 // scope 3 at $DIR/dyn-trait.rs:21:5: 21:22
-+         _7 = _5;                         // scope 3 at $DIR/dyn-trait.rs:21:5: 21:22
-+         _0 = <dyn Cache<V = <Q as Query>::V> as Cache>::store_nocache(move _7) -> bb2; // scope 3 at $DIR/dyn-trait.rs:21:5: 21:22
+          StorageDead(_3);                 // scope 0 at $DIR/dyn_trait.rs:+1:23: +1:24
+          StorageLive(_4);                 // scope 1 at $DIR/dyn_trait.rs:+2:23: +2:24
+          _4 = &(*_2);                     // scope 1 at $DIR/dyn_trait.rs:+2:23: +2:24
+-         _0 = try_execute_query::<<Q as Query>::C>(move _4) -> bb2; // scope 1 at $DIR/dyn_trait.rs:+2:5: +2:25
++         StorageLive(_5);                 // scope 2 at $DIR/dyn_trait.rs:27:14: 27:15
++         StorageLive(_6);                 // scope 2 at $DIR/dyn_trait.rs:27:14: 27:15
++         _6 = _4;                         // scope 2 at $DIR/dyn_trait.rs:27:14: 27:15
++         _5 = move _6 as &dyn Cache<V = <Q as Query>::V> (Pointer(Unsize)); // scope 2 at $DIR/dyn_trait.rs:27:14: 27:15
++         StorageDead(_6);                 // scope 2 at $DIR/dyn_trait.rs:27:14: 27:15
++         StorageLive(_7);                 // scope 3 at $DIR/dyn_trait.rs:21:5: 21:22
++         _7 = _5;                         // scope 3 at $DIR/dyn_trait.rs:21:5: 21:22
++         _0 = <dyn Cache<V = <Q as Query>::V> as Cache>::store_nocache(move _7) -> bb2; // scope 3 at $DIR/dyn_trait.rs:21:5: 21:22
                                            // mir::Constant
--                                          // + span: $DIR/dyn-trait.rs:34:5: 34:22
+-                                          // + span: $DIR/dyn_trait.rs:34:5: 34:22
 -                                          // + literal: Const { ty: for<'a> fn(&'a <Q as Query>::C) {try_execute_query::<<Q as Query>::C>}, val: Value(<ZST>) }
-+                                          // + span: $DIR/dyn-trait.rs:21:7: 21:20
++                                          // + span: $DIR/dyn_trait.rs:21:7: 21:20
 +                                          // + literal: Const { ty: for<'a> fn(&'a dyn Cache<V = <Q as Query>::V>) {<dyn Cache<V = <Q as Query>::V> as Cache>::store_nocache}, val: Value(<ZST>) }
       }
   
       bb2: {
-+         StorageDead(_7);                 // scope 3 at $DIR/dyn-trait.rs:21:21: 21:22
-+         StorageDead(_5);                 // scope 2 at $DIR/dyn-trait.rs:27:15: 27:16
-          StorageDead(_4);                 // scope 1 at $DIR/dyn-trait.rs:+2:24: +2:25
-          StorageDead(_2);                 // scope 0 at $DIR/dyn-trait.rs:+3:1: +3:2
-          return;                          // scope 0 at $DIR/dyn-trait.rs:+3:2: +3:2
++         StorageDead(_7);                 // scope 3 at $DIR/dyn_trait.rs:21:21: 21:22
++         StorageDead(_5);                 // scope 2 at $DIR/dyn_trait.rs:27:15: 27:16
+          StorageDead(_4);                 // scope 1 at $DIR/dyn_trait.rs:+2:24: +2:25
+          StorageDead(_2);                 // scope 0 at $DIR/dyn_trait.rs:+3:1: +3:2
+          return;                          // scope 0 at $DIR/dyn_trait.rs:+3:2: +3:2
       }
   }
   
diff --git a/src/test/mir-opt/inline/dyn_trait.mk_cycle.Inline.diff b/src/test/mir-opt/inline/dyn_trait.mk_cycle.Inline.diff
index 7421db4d063af..7653a5ded440a 100644
--- a/src/test/mir-opt/inline/dyn_trait.mk_cycle.Inline.diff
+++ b/src/test/mir-opt/inline/dyn_trait.mk_cycle.Inline.diff
@@ -2,22 +2,22 @@
 + // MIR for `mk_cycle` after Inline
   
   fn mk_cycle(_1: &dyn Cache<V = V>) -> () {
-      debug c => _1;                       // in scope 0 at $DIR/dyn-trait.rs:+0:27: +0:28
-      let mut _0: ();                      // return place in scope 0 at $DIR/dyn-trait.rs:+0:49: +0:49
-      let mut _2: &dyn Cache<V = V>;       // in scope 0 at $DIR/dyn-trait.rs:+1:5: +1:22
+      debug c => _1;                       // in scope 0 at $DIR/dyn_trait.rs:+0:27: +0:28
+      let mut _0: ();                      // return place in scope 0 at $DIR/dyn_trait.rs:+0:49: +0:49
+      let mut _2: &dyn Cache<V = V>;       // in scope 0 at $DIR/dyn_trait.rs:+1:5: +1:22
   
       bb0: {
-          StorageLive(_2);                 // scope 0 at $DIR/dyn-trait.rs:+1:5: +1:22
-          _2 = &(*_1);                     // scope 0 at $DIR/dyn-trait.rs:+1:5: +1:22
-          _0 = <dyn Cache<V = V> as Cache>::store_nocache(move _2) -> bb1; // scope 0 at $DIR/dyn-trait.rs:+1:5: +1:22
+          StorageLive(_2);                 // scope 0 at $DIR/dyn_trait.rs:+1:5: +1:22
+          _2 = &(*_1);                     // scope 0 at $DIR/dyn_trait.rs:+1:5: +1:22
+          _0 = <dyn Cache<V = V> as Cache>::store_nocache(move _2) -> bb1; // scope 0 at $DIR/dyn_trait.rs:+1:5: +1:22
                                            // mir::Constant
-                                           // + span: $DIR/dyn-trait.rs:21:7: 21:20
+                                           // + span: $DIR/dyn_trait.rs:21:7: 21:20
                                            // + literal: Const { ty: for<'a> fn(&'a dyn Cache<V = V>) {<dyn Cache<V = V> as Cache>::store_nocache}, val: Value(<ZST>) }
       }
   
       bb1: {
-          StorageDead(_2);                 // scope 0 at $DIR/dyn-trait.rs:+1:21: +1:22
-          return;                          // scope 0 at $DIR/dyn-trait.rs:+2:2: +2:2
+          StorageDead(_2);                 // scope 0 at $DIR/dyn_trait.rs:+1:21: +1:22
+          return;                          // scope 0 at $DIR/dyn_trait.rs:+2:2: +2:2
       }
   }
   
diff --git a/src/test/mir-opt/inline/dyn-trait.rs b/src/test/mir-opt/inline/dyn_trait.rs
similarity index 100%
rename from src/test/mir-opt/inline/dyn-trait.rs
rename to src/test/mir-opt/inline/dyn_trait.rs
diff --git a/src/test/mir-opt/inline/dyn_trait.try_execute_query.Inline.diff b/src/test/mir-opt/inline/dyn_trait.try_execute_query.Inline.diff
index e6e783744227e..0191045f3d1a5 100644
--- a/src/test/mir-opt/inline/dyn_trait.try_execute_query.Inline.diff
+++ b/src/test/mir-opt/inline/dyn_trait.try_execute_query.Inline.diff
@@ -2,36 +2,36 @@
 + // MIR for `try_execute_query` after Inline
   
   fn try_execute_query(_1: &C) -> () {
-      debug c => _1;                       // in scope 0 at $DIR/dyn-trait.rs:+0:36: +0:37
-      let mut _0: ();                      // return place in scope 0 at $DIR/dyn-trait.rs:+0:43: +0:43
-      let mut _2: &dyn Cache<V = <C as Cache>::V>; // in scope 0 at $DIR/dyn-trait.rs:+1:14: +1:15
-      let mut _3: &C;                      // in scope 0 at $DIR/dyn-trait.rs:+1:14: +1:15
-+     scope 1 (inlined mk_cycle::<<C as Cache>::V>) { // at $DIR/dyn-trait.rs:27:5: 27:16
-+         debug c => _2;                   // in scope 1 at $DIR/dyn-trait.rs:20:27: 20:28
-+         let mut _4: &dyn Cache<V = <C as Cache>::V>; // in scope 1 at $DIR/dyn-trait.rs:21:5: 21:22
+      debug c => _1;                       // in scope 0 at $DIR/dyn_trait.rs:+0:36: +0:37
+      let mut _0: ();                      // return place in scope 0 at $DIR/dyn_trait.rs:+0:43: +0:43
+      let mut _2: &dyn Cache<V = <C as Cache>::V>; // in scope 0 at $DIR/dyn_trait.rs:+1:14: +1:15
+      let mut _3: &C;                      // in scope 0 at $DIR/dyn_trait.rs:+1:14: +1:15
++     scope 1 (inlined mk_cycle::<<C as Cache>::V>) { // at $DIR/dyn_trait.rs:27:5: 27:16
++         debug c => _2;                   // in scope 1 at $DIR/dyn_trait.rs:20:27: 20:28
++         let mut _4: &dyn Cache<V = <C as Cache>::V>; // in scope 1 at $DIR/dyn_trait.rs:21:5: 21:22
 +     }
   
       bb0: {
-          StorageLive(_2);                 // scope 0 at $DIR/dyn-trait.rs:+1:14: +1:15
-          StorageLive(_3);                 // scope 0 at $DIR/dyn-trait.rs:+1:14: +1:15
-          _3 = &(*_1);                     // scope 0 at $DIR/dyn-trait.rs:+1:14: +1:15
-          _2 = move _3 as &dyn Cache<V = <C as Cache>::V> (Pointer(Unsize)); // scope 0 at $DIR/dyn-trait.rs:+1:14: +1:15
-          StorageDead(_3);                 // scope 0 at $DIR/dyn-trait.rs:+1:14: +1:15
--         _0 = mk_cycle::<<C as Cache>::V>(move _2) -> bb1; // scope 0 at $DIR/dyn-trait.rs:+1:5: +1:16
-+         StorageLive(_4);                 // scope 1 at $DIR/dyn-trait.rs:21:5: 21:22
-+         _4 = _2;                         // scope 1 at $DIR/dyn-trait.rs:21:5: 21:22
-+         _0 = <dyn Cache<V = <C as Cache>::V> as Cache>::store_nocache(move _4) -> bb1; // scope 1 at $DIR/dyn-trait.rs:21:5: 21:22
+          StorageLive(_2);                 // scope 0 at $DIR/dyn_trait.rs:+1:14: +1:15
+          StorageLive(_3);                 // scope 0 at $DIR/dyn_trait.rs:+1:14: +1:15
+          _3 = &(*_1);                     // scope 0 at $DIR/dyn_trait.rs:+1:14: +1:15
+          _2 = move _3 as &dyn Cache<V = <C as Cache>::V> (Pointer(Unsize)); // scope 0 at $DIR/dyn_trait.rs:+1:14: +1:15
+          StorageDead(_3);                 // scope 0 at $DIR/dyn_trait.rs:+1:14: +1:15
+-         _0 = mk_cycle::<<C as Cache>::V>(move _2) -> bb1; // scope 0 at $DIR/dyn_trait.rs:+1:5: +1:16
++         StorageLive(_4);                 // scope 1 at $DIR/dyn_trait.rs:21:5: 21:22
++         _4 = _2;                         // scope 1 at $DIR/dyn_trait.rs:21:5: 21:22
++         _0 = <dyn Cache<V = <C as Cache>::V> as Cache>::store_nocache(move _4) -> bb1; // scope 1 at $DIR/dyn_trait.rs:21:5: 21:22
                                            // mir::Constant
--                                          // + span: $DIR/dyn-trait.rs:27:5: 27:13
+-                                          // + span: $DIR/dyn_trait.rs:27:5: 27:13
 -                                          // + literal: Const { ty: for<'a> fn(&'a (dyn Cache<V = <C as Cache>::V> + 'a)) {mk_cycle::<<C as Cache>::V>}, val: Value(<ZST>) }
-+                                          // + span: $DIR/dyn-trait.rs:21:7: 21:20
++                                          // + span: $DIR/dyn_trait.rs:21:7: 21:20
 +                                          // + literal: Const { ty: for<'a> fn(&'a dyn Cache<V = <C as Cache>::V>) {<dyn Cache<V = <C as Cache>::V> as Cache>::store_nocache}, val: Value(<ZST>) }
       }
   
       bb1: {
-+         StorageDead(_4);                 // scope 1 at $DIR/dyn-trait.rs:21:21: 21:22
-          StorageDead(_2);                 // scope 0 at $DIR/dyn-trait.rs:+1:15: +1:16
-          return;                          // scope 0 at $DIR/dyn-trait.rs:+2:2: +2:2
++         StorageDead(_4);                 // scope 1 at $DIR/dyn_trait.rs:21:21: 21:22
+          StorageDead(_2);                 // scope 0 at $DIR/dyn_trait.rs:+1:15: +1:16
+          return;                          // scope 0 at $DIR/dyn_trait.rs:+2:2: +2:2
       }
   }
   
diff --git a/src/test/mir-opt/inline/inline_any_operand.bar.Inline.after.mir b/src/test/mir-opt/inline/inline_any_operand.bar.Inline.after.mir
index b27425fb18c28..8956c80dcd2a9 100644
--- a/src/test/mir-opt/inline/inline_any_operand.bar.Inline.after.mir
+++ b/src/test/mir-opt/inline/inline_any_operand.bar.Inline.after.mir
@@ -1,44 +1,44 @@
 // MIR for `bar` after Inline
 
 fn bar() -> bool {
-    let mut _0: bool;                    // return place in scope 0 at $DIR/inline-any-operand.rs:+0:13: +0:17
-    let _1: fn(i32, i32) -> bool {foo};  // in scope 0 at $DIR/inline-any-operand.rs:+1:9: +1:10
-    let mut _2: fn(i32, i32) -> bool {foo}; // in scope 0 at $DIR/inline-any-operand.rs:+2:5: +2:6
-    let mut _3: i32;                     // in scope 0 at $DIR/inline-any-operand.rs:+2:5: +2:13
-    let mut _4: i32;                     // in scope 0 at $DIR/inline-any-operand.rs:+2:5: +2:13
+    let mut _0: bool;                    // return place in scope 0 at $DIR/inline_any_operand.rs:+0:13: +0:17
+    let _1: fn(i32, i32) -> bool {foo};  // in scope 0 at $DIR/inline_any_operand.rs:+1:9: +1:10
+    let mut _2: fn(i32, i32) -> bool {foo}; // in scope 0 at $DIR/inline_any_operand.rs:+2:5: +2:6
+    let mut _3: i32;                     // in scope 0 at $DIR/inline_any_operand.rs:+2:5: +2:13
+    let mut _4: i32;                     // in scope 0 at $DIR/inline_any_operand.rs:+2:5: +2:13
     scope 1 {
-        debug f => _1;                   // in scope 1 at $DIR/inline-any-operand.rs:+1:9: +1:10
-        scope 2 (inlined foo) {          // at $DIR/inline-any-operand.rs:12:5: 12:13
-            debug x => _3;               // in scope 2 at $DIR/inline-any-operand.rs:16:8: 16:9
-            debug y => _4;               // in scope 2 at $DIR/inline-any-operand.rs:16:16: 16:17
-            let mut _5: i32;             // in scope 2 at $DIR/inline-any-operand.rs:17:5: 17:6
-            let mut _6: i32;             // in scope 2 at $DIR/inline-any-operand.rs:17:10: 17:11
+        debug f => _1;                   // in scope 1 at $DIR/inline_any_operand.rs:+1:9: +1:10
+        scope 2 (inlined foo) {          // at $DIR/inline_any_operand.rs:12:5: 12:13
+            debug x => _3;               // in scope 2 at $DIR/inline_any_operand.rs:16:8: 16:9
+            debug y => _4;               // in scope 2 at $DIR/inline_any_operand.rs:16:16: 16:17
+            let mut _5: i32;             // in scope 2 at $DIR/inline_any_operand.rs:17:5: 17:6
+            let mut _6: i32;             // in scope 2 at $DIR/inline_any_operand.rs:17:10: 17:11
         }
     }
 
     bb0: {
-        StorageLive(_1);                 // scope 0 at $DIR/inline-any-operand.rs:+1:9: +1:10
-        _1 = foo;                        // scope 0 at $DIR/inline-any-operand.rs:+1:13: +1:16
+        StorageLive(_1);                 // scope 0 at $DIR/inline_any_operand.rs:+1:9: +1:10
+        _1 = foo;                        // scope 0 at $DIR/inline_any_operand.rs:+1:13: +1:16
                                          // mir::Constant
-                                         // + span: $DIR/inline-any-operand.rs:11:13: 11:16
+                                         // + span: $DIR/inline_any_operand.rs:11:13: 11:16
                                          // + literal: Const { ty: fn(i32, i32) -> bool {foo}, val: Value(<ZST>) }
-        StorageLive(_2);                 // scope 1 at $DIR/inline-any-operand.rs:+2:5: +2:6
-        _2 = _1;                         // scope 1 at $DIR/inline-any-operand.rs:+2:5: +2:6
-        StorageLive(_3);                 // scope 1 at $DIR/inline-any-operand.rs:+2:5: +2:13
-        _3 = const 1_i32;                // scope 1 at $DIR/inline-any-operand.rs:+2:5: +2:13
-        StorageLive(_4);                 // scope 1 at $DIR/inline-any-operand.rs:+2:5: +2:13
-        _4 = const -1_i32;               // scope 1 at $DIR/inline-any-operand.rs:+2:5: +2:13
-        StorageLive(_5);                 // scope 2 at $DIR/inline-any-operand.rs:17:5: 17:6
-        _5 = _3;                         // scope 2 at $DIR/inline-any-operand.rs:17:5: 17:6
-        StorageLive(_6);                 // scope 2 at $DIR/inline-any-operand.rs:17:10: 17:11
-        _6 = _4;                         // scope 2 at $DIR/inline-any-operand.rs:17:10: 17:11
-        _0 = Eq(move _5, move _6);       // scope 2 at $DIR/inline-any-operand.rs:17:5: 17:11
-        StorageDead(_6);                 // scope 2 at $DIR/inline-any-operand.rs:17:10: 17:11
-        StorageDead(_5);                 // scope 2 at $DIR/inline-any-operand.rs:17:10: 17:11
-        StorageDead(_4);                 // scope 1 at $DIR/inline-any-operand.rs:+2:5: +2:13
-        StorageDead(_3);                 // scope 1 at $DIR/inline-any-operand.rs:+2:5: +2:13
-        StorageDead(_2);                 // scope 1 at $DIR/inline-any-operand.rs:+2:12: +2:13
-        StorageDead(_1);                 // scope 0 at $DIR/inline-any-operand.rs:+3:1: +3:2
-        return;                          // scope 0 at $DIR/inline-any-operand.rs:+3:2: +3:2
+        StorageLive(_2);                 // scope 1 at $DIR/inline_any_operand.rs:+2:5: +2:6
+        _2 = _1;                         // scope 1 at $DIR/inline_any_operand.rs:+2:5: +2:6
+        StorageLive(_3);                 // scope 1 at $DIR/inline_any_operand.rs:+2:5: +2:13
+        _3 = const 1_i32;                // scope 1 at $DIR/inline_any_operand.rs:+2:5: +2:13
+        StorageLive(_4);                 // scope 1 at $DIR/inline_any_operand.rs:+2:5: +2:13
+        _4 = const -1_i32;               // scope 1 at $DIR/inline_any_operand.rs:+2:5: +2:13
+        StorageLive(_5);                 // scope 2 at $DIR/inline_any_operand.rs:17:5: 17:6
+        _5 = _3;                         // scope 2 at $DIR/inline_any_operand.rs:17:5: 17:6
+        StorageLive(_6);                 // scope 2 at $DIR/inline_any_operand.rs:17:10: 17:11
+        _6 = _4;                         // scope 2 at $DIR/inline_any_operand.rs:17:10: 17:11
+        _0 = Eq(move _5, move _6);       // scope 2 at $DIR/inline_any_operand.rs:17:5: 17:11
+        StorageDead(_6);                 // scope 2 at $DIR/inline_any_operand.rs:17:10: 17:11
+        StorageDead(_5);                 // scope 2 at $DIR/inline_any_operand.rs:17:10: 17:11
+        StorageDead(_4);                 // scope 1 at $DIR/inline_any_operand.rs:+2:5: +2:13
+        StorageDead(_3);                 // scope 1 at $DIR/inline_any_operand.rs:+2:5: +2:13
+        StorageDead(_2);                 // scope 1 at $DIR/inline_any_operand.rs:+2:12: +2:13
+        StorageDead(_1);                 // scope 0 at $DIR/inline_any_operand.rs:+3:1: +3:2
+        return;                          // scope 0 at $DIR/inline_any_operand.rs:+3:2: +3:2
     }
 }
diff --git a/src/test/mir-opt/inline/inline-any-operand.rs b/src/test/mir-opt/inline/inline_any_operand.rs
similarity index 100%
rename from src/test/mir-opt/inline/inline-any-operand.rs
rename to src/test/mir-opt/inline/inline_any_operand.rs
diff --git a/src/test/mir-opt/inline/inline-async.rs b/src/test/mir-opt/inline/inline_async.rs
similarity index 100%
rename from src/test/mir-opt/inline/inline-async.rs
rename to src/test/mir-opt/inline/inline_async.rs
diff --git a/src/test/mir-opt/inline/inline_closure.foo.Inline.after.mir b/src/test/mir-opt/inline/inline_closure.foo.Inline.after.mir
index 1fadd2464798d..9eb3a01eef91a 100644
--- a/src/test/mir-opt/inline/inline_closure.foo.Inline.after.mir
+++ b/src/test/mir-opt/inline/inline_closure.foo.Inline.after.mir
@@ -1,49 +1,49 @@
 // MIR for `foo` after Inline
 
 fn foo(_1: T, _2: i32) -> i32 {
-    debug _t => _1;                      // in scope 0 at $DIR/inline-closure.rs:+0:17: +0:19
-    debug q => _2;                       // in scope 0 at $DIR/inline-closure.rs:+0:24: +0:25
-    let mut _0: i32;                     // return place in scope 0 at $DIR/inline-closure.rs:+0:35: +0:38
-    let _3: [closure@foo<T>::{closure#0}]; // in scope 0 at $DIR/inline-closure.rs:+1:9: +1:10
-    let mut _4: &[closure@foo<T>::{closure#0}]; // in scope 0 at $DIR/inline-closure.rs:+2:5: +2:6
-    let mut _5: (i32, i32);              // in scope 0 at $DIR/inline-closure.rs:+2:5: +2:12
-    let mut _6: i32;                     // in scope 0 at $DIR/inline-closure.rs:+2:7: +2:8
-    let mut _7: i32;                     // in scope 0 at $DIR/inline-closure.rs:+2:10: +2:11
-    let mut _8: i32;                     // in scope 0 at $DIR/inline-closure.rs:+2:5: +2:12
-    let mut _9: i32;                     // in scope 0 at $DIR/inline-closure.rs:+2:5: +2:12
+    debug _t => _1;                      // in scope 0 at $DIR/inline_closure.rs:+0:17: +0:19
+    debug q => _2;                       // in scope 0 at $DIR/inline_closure.rs:+0:24: +0:25
+    let mut _0: i32;                     // return place in scope 0 at $DIR/inline_closure.rs:+0:35: +0:38
+    let _3: [closure@foo<T>::{closure#0}]; // in scope 0 at $DIR/inline_closure.rs:+1:9: +1:10
+    let mut _4: &[closure@foo<T>::{closure#0}]; // in scope 0 at $DIR/inline_closure.rs:+2:5: +2:6
+    let mut _5: (i32, i32);              // in scope 0 at $DIR/inline_closure.rs:+2:5: +2:12
+    let mut _6: i32;                     // in scope 0 at $DIR/inline_closure.rs:+2:7: +2:8
+    let mut _7: i32;                     // in scope 0 at $DIR/inline_closure.rs:+2:10: +2:11
+    let mut _8: i32;                     // in scope 0 at $DIR/inline_closure.rs:+2:5: +2:12
+    let mut _9: i32;                     // in scope 0 at $DIR/inline_closure.rs:+2:5: +2:12
     scope 1 {
-        debug x => _3;                   // in scope 1 at $DIR/inline-closure.rs:+1:9: +1:10
-        scope 2 (inlined foo::<T>::{closure#0}) { // at $DIR/inline-closure.rs:12:5: 12:12
-            debug _t => _8;              // in scope 2 at $DIR/inline-closure.rs:+1:14: +1:16
-            debug _q => _9;              // in scope 2 at $DIR/inline-closure.rs:+1:18: +1:20
+        debug x => _3;                   // in scope 1 at $DIR/inline_closure.rs:+1:9: +1:10
+        scope 2 (inlined foo::<T>::{closure#0}) { // at $DIR/inline_closure.rs:12:5: 12:12
+            debug _t => _8;              // in scope 2 at $DIR/inline_closure.rs:+1:14: +1:16
+            debug _q => _9;              // in scope 2 at $DIR/inline_closure.rs:+1:18: +1:20
         }
     }
 
     bb0: {
-        StorageLive(_3);                 // scope 0 at $DIR/inline-closure.rs:+1:9: +1:10
-        Deinit(_3);                      // scope 0 at $DIR/inline-closure.rs:+1:13: +1:24
-        StorageLive(_4);                 // scope 1 at $DIR/inline-closure.rs:+2:5: +2:6
-        _4 = &_3;                        // scope 1 at $DIR/inline-closure.rs:+2:5: +2:6
-        StorageLive(_5);                 // scope 1 at $DIR/inline-closure.rs:+2:5: +2:12
-        StorageLive(_6);                 // scope 1 at $DIR/inline-closure.rs:+2:7: +2:8
-        _6 = _2;                         // scope 1 at $DIR/inline-closure.rs:+2:7: +2:8
-        StorageLive(_7);                 // scope 1 at $DIR/inline-closure.rs:+2:10: +2:11
-        _7 = _2;                         // scope 1 at $DIR/inline-closure.rs:+2:10: +2:11
-        Deinit(_5);                      // scope 1 at $DIR/inline-closure.rs:+2:5: +2:12
-        (_5.0: i32) = move _6;           // scope 1 at $DIR/inline-closure.rs:+2:5: +2:12
-        (_5.1: i32) = move _7;           // scope 1 at $DIR/inline-closure.rs:+2:5: +2:12
-        StorageLive(_8);                 // scope 1 at $DIR/inline-closure.rs:+2:5: +2:12
-        _8 = move (_5.0: i32);           // scope 1 at $DIR/inline-closure.rs:+2:5: +2:12
-        StorageLive(_9);                 // scope 1 at $DIR/inline-closure.rs:+2:5: +2:12
-        _9 = move (_5.1: i32);           // scope 1 at $DIR/inline-closure.rs:+2:5: +2:12
-        _0 = _8;                         // scope 2 at $DIR/inline-closure.rs:+1:22: +1:24
-        StorageDead(_9);                 // scope 1 at $DIR/inline-closure.rs:+2:5: +2:12
-        StorageDead(_8);                 // scope 1 at $DIR/inline-closure.rs:+2:5: +2:12
-        StorageDead(_7);                 // scope 1 at $DIR/inline-closure.rs:+2:11: +2:12
-        StorageDead(_6);                 // scope 1 at $DIR/inline-closure.rs:+2:11: +2:12
-        StorageDead(_5);                 // scope 1 at $DIR/inline-closure.rs:+2:11: +2:12
-        StorageDead(_4);                 // scope 1 at $DIR/inline-closure.rs:+2:11: +2:12
-        StorageDead(_3);                 // scope 0 at $DIR/inline-closure.rs:+3:1: +3:2
-        return;                          // scope 0 at $DIR/inline-closure.rs:+3:2: +3:2
+        StorageLive(_3);                 // scope 0 at $DIR/inline_closure.rs:+1:9: +1:10
+        Deinit(_3);                      // scope 0 at $DIR/inline_closure.rs:+1:13: +1:24
+        StorageLive(_4);                 // scope 1 at $DIR/inline_closure.rs:+2:5: +2:6
+        _4 = &_3;                        // scope 1 at $DIR/inline_closure.rs:+2:5: +2:6
+        StorageLive(_5);                 // scope 1 at $DIR/inline_closure.rs:+2:5: +2:12
+        StorageLive(_6);                 // scope 1 at $DIR/inline_closure.rs:+2:7: +2:8
+        _6 = _2;                         // scope 1 at $DIR/inline_closure.rs:+2:7: +2:8
+        StorageLive(_7);                 // scope 1 at $DIR/inline_closure.rs:+2:10: +2:11
+        _7 = _2;                         // scope 1 at $DIR/inline_closure.rs:+2:10: +2:11
+        Deinit(_5);                      // scope 1 at $DIR/inline_closure.rs:+2:5: +2:12
+        (_5.0: i32) = move _6;           // scope 1 at $DIR/inline_closure.rs:+2:5: +2:12
+        (_5.1: i32) = move _7;           // scope 1 at $DIR/inline_closure.rs:+2:5: +2:12
+        StorageLive(_8);                 // scope 1 at $DIR/inline_closure.rs:+2:5: +2:12
+        _8 = move (_5.0: i32);           // scope 1 at $DIR/inline_closure.rs:+2:5: +2:12
+        StorageLive(_9);                 // scope 1 at $DIR/inline_closure.rs:+2:5: +2:12
+        _9 = move (_5.1: i32);           // scope 1 at $DIR/inline_closure.rs:+2:5: +2:12
+        _0 = _8;                         // scope 2 at $DIR/inline_closure.rs:+1:22: +1:24
+        StorageDead(_9);                 // scope 1 at $DIR/inline_closure.rs:+2:5: +2:12
+        StorageDead(_8);                 // scope 1 at $DIR/inline_closure.rs:+2:5: +2:12
+        StorageDead(_7);                 // scope 1 at $DIR/inline_closure.rs:+2:11: +2:12
+        StorageDead(_6);                 // scope 1 at $DIR/inline_closure.rs:+2:11: +2:12
+        StorageDead(_5);                 // scope 1 at $DIR/inline_closure.rs:+2:11: +2:12
+        StorageDead(_4);                 // scope 1 at $DIR/inline_closure.rs:+2:11: +2:12
+        StorageDead(_3);                 // scope 0 at $DIR/inline_closure.rs:+3:1: +3:2
+        return;                          // scope 0 at $DIR/inline_closure.rs:+3:2: +3:2
     }
 }
diff --git a/src/test/mir-opt/inline/inline-closure.rs b/src/test/mir-opt/inline/inline_closure.rs
similarity index 100%
rename from src/test/mir-opt/inline/inline-closure.rs
rename to src/test/mir-opt/inline/inline_closure.rs
diff --git a/src/test/mir-opt/inline/inline_closure_borrows_arg.foo.Inline.after.mir b/src/test/mir-opt/inline/inline_closure_borrows_arg.foo.Inline.after.mir
index 4069e9f89c8d8..e6275ac7f5dd9 100644
--- a/src/test/mir-opt/inline/inline_closure_borrows_arg.foo.Inline.after.mir
+++ b/src/test/mir-opt/inline/inline_closure_borrows_arg.foo.Inline.after.mir
@@ -1,56 +1,56 @@
 // MIR for `foo` after Inline
 
 fn foo(_1: T, _2: &i32) -> i32 {
-    debug _t => _1;                      // in scope 0 at $DIR/inline-closure-borrows-arg.rs:+0:17: +0:19
-    debug q => _2;                       // in scope 0 at $DIR/inline-closure-borrows-arg.rs:+0:24: +0:25
-    let mut _0: i32;                     // return place in scope 0 at $DIR/inline-closure-borrows-arg.rs:+0:36: +0:39
-    let _3: [closure@foo<T>::{closure#0}]; // in scope 0 at $DIR/inline-closure-borrows-arg.rs:+1:9: +1:10
-    let mut _4: &[closure@foo<T>::{closure#0}]; // in scope 0 at $DIR/inline-closure-borrows-arg.rs:+5:5: +5:6
-    let mut _5: (&i32, &i32);            // in scope 0 at $DIR/inline-closure-borrows-arg.rs:+5:5: +5:12
-    let mut _6: &i32;                    // in scope 0 at $DIR/inline-closure-borrows-arg.rs:+5:7: +5:8
-    let mut _7: &i32;                    // in scope 0 at $DIR/inline-closure-borrows-arg.rs:+5:10: +5:11
-    let mut _8: &i32;                    // in scope 0 at $DIR/inline-closure-borrows-arg.rs:+5:5: +5:12
-    let mut _9: &i32;                    // in scope 0 at $DIR/inline-closure-borrows-arg.rs:+5:5: +5:12
+    debug _t => _1;                      // in scope 0 at $DIR/inline_closure_borrows_arg.rs:+0:17: +0:19
+    debug q => _2;                       // in scope 0 at $DIR/inline_closure_borrows_arg.rs:+0:24: +0:25
+    let mut _0: i32;                     // return place in scope 0 at $DIR/inline_closure_borrows_arg.rs:+0:36: +0:39
+    let _3: [closure@foo<T>::{closure#0}]; // in scope 0 at $DIR/inline_closure_borrows_arg.rs:+1:9: +1:10
+    let mut _4: &[closure@foo<T>::{closure#0}]; // in scope 0 at $DIR/inline_closure_borrows_arg.rs:+5:5: +5:6
+    let mut _5: (&i32, &i32);            // in scope 0 at $DIR/inline_closure_borrows_arg.rs:+5:5: +5:12
+    let mut _6: &i32;                    // in scope 0 at $DIR/inline_closure_borrows_arg.rs:+5:7: +5:8
+    let mut _7: &i32;                    // in scope 0 at $DIR/inline_closure_borrows_arg.rs:+5:10: +5:11
+    let mut _8: &i32;                    // in scope 0 at $DIR/inline_closure_borrows_arg.rs:+5:5: +5:12
+    let mut _9: &i32;                    // in scope 0 at $DIR/inline_closure_borrows_arg.rs:+5:5: +5:12
     scope 1 {
-        debug x => _3;                   // in scope 1 at $DIR/inline-closure-borrows-arg.rs:+1:9: +1:10
-        scope 2 (inlined foo::<T>::{closure#0}) { // at $DIR/inline-closure-borrows-arg.rs:16:5: 16:12
-            debug r => _8;               // in scope 2 at $DIR/inline-closure-borrows-arg.rs:+1:14: +1:15
-            debug _s => _9;              // in scope 2 at $DIR/inline-closure-borrows-arg.rs:+1:23: +1:25
-            let _10: &i32;               // in scope 2 at $DIR/inline-closure-borrows-arg.rs:+2:13: +2:21
+        debug x => _3;                   // in scope 1 at $DIR/inline_closure_borrows_arg.rs:+1:9: +1:10
+        scope 2 (inlined foo::<T>::{closure#0}) { // at $DIR/inline_closure_borrows_arg.rs:16:5: 16:12
+            debug r => _8;               // in scope 2 at $DIR/inline_closure_borrows_arg.rs:+1:14: +1:15
+            debug _s => _9;              // in scope 2 at $DIR/inline_closure_borrows_arg.rs:+1:23: +1:25
+            let _10: &i32;               // in scope 2 at $DIR/inline_closure_borrows_arg.rs:+2:13: +2:21
             scope 3 {
-                debug variable => _10;   // in scope 3 at $DIR/inline-closure-borrows-arg.rs:+2:13: +2:21
+                debug variable => _10;   // in scope 3 at $DIR/inline_closure_borrows_arg.rs:+2:13: +2:21
             }
         }
     }
 
     bb0: {
-        StorageLive(_3);                 // scope 0 at $DIR/inline-closure-borrows-arg.rs:+1:9: +1:10
-        Deinit(_3);                      // scope 0 at $DIR/inline-closure-borrows-arg.rs:+1:13: +4:6
-        StorageLive(_4);                 // scope 1 at $DIR/inline-closure-borrows-arg.rs:+5:5: +5:6
-        _4 = &_3;                        // scope 1 at $DIR/inline-closure-borrows-arg.rs:+5:5: +5:6
-        StorageLive(_5);                 // scope 1 at $DIR/inline-closure-borrows-arg.rs:+5:5: +5:12
-        StorageLive(_6);                 // scope 1 at $DIR/inline-closure-borrows-arg.rs:+5:7: +5:8
-        _6 = &(*_2);                     // scope 1 at $DIR/inline-closure-borrows-arg.rs:+5:7: +5:8
-        StorageLive(_7);                 // scope 1 at $DIR/inline-closure-borrows-arg.rs:+5:10: +5:11
-        _7 = &(*_2);                     // scope 1 at $DIR/inline-closure-borrows-arg.rs:+5:10: +5:11
-        Deinit(_5);                      // scope 1 at $DIR/inline-closure-borrows-arg.rs:+5:5: +5:12
-        (_5.0: &i32) = move _6;          // scope 1 at $DIR/inline-closure-borrows-arg.rs:+5:5: +5:12
-        (_5.1: &i32) = move _7;          // scope 1 at $DIR/inline-closure-borrows-arg.rs:+5:5: +5:12
-        StorageLive(_8);                 // scope 1 at $DIR/inline-closure-borrows-arg.rs:+5:5: +5:12
-        _8 = move (_5.0: &i32);          // scope 1 at $DIR/inline-closure-borrows-arg.rs:+5:5: +5:12
-        StorageLive(_9);                 // scope 1 at $DIR/inline-closure-borrows-arg.rs:+5:5: +5:12
-        _9 = move (_5.1: &i32);          // scope 1 at $DIR/inline-closure-borrows-arg.rs:+5:5: +5:12
-        StorageLive(_10);                // scope 2 at $DIR/inline-closure-borrows-arg.rs:+2:13: +2:21
-        _10 = _8;                        // scope 2 at $DIR/inline-closure-borrows-arg.rs:+2:24: +2:27
-        _0 = (*_10);                     // scope 3 at $DIR/inline-closure-borrows-arg.rs:+3:9: +3:18
-        StorageDead(_10);                // scope 2 at $DIR/inline-closure-borrows-arg.rs:+4:5: +4:6
-        StorageDead(_9);                 // scope 1 at $DIR/inline-closure-borrows-arg.rs:+5:5: +5:12
-        StorageDead(_8);                 // scope 1 at $DIR/inline-closure-borrows-arg.rs:+5:5: +5:12
-        StorageDead(_7);                 // scope 1 at $DIR/inline-closure-borrows-arg.rs:+5:11: +5:12
-        StorageDead(_6);                 // scope 1 at $DIR/inline-closure-borrows-arg.rs:+5:11: +5:12
-        StorageDead(_5);                 // scope 1 at $DIR/inline-closure-borrows-arg.rs:+5:11: +5:12
-        StorageDead(_4);                 // scope 1 at $DIR/inline-closure-borrows-arg.rs:+5:11: +5:12
-        StorageDead(_3);                 // scope 0 at $DIR/inline-closure-borrows-arg.rs:+6:1: +6:2
-        return;                          // scope 0 at $DIR/inline-closure-borrows-arg.rs:+6:2: +6:2
+        StorageLive(_3);                 // scope 0 at $DIR/inline_closure_borrows_arg.rs:+1:9: +1:10
+        Deinit(_3);                      // scope 0 at $DIR/inline_closure_borrows_arg.rs:+1:13: +4:6
+        StorageLive(_4);                 // scope 1 at $DIR/inline_closure_borrows_arg.rs:+5:5: +5:6
+        _4 = &_3;                        // scope 1 at $DIR/inline_closure_borrows_arg.rs:+5:5: +5:6
+        StorageLive(_5);                 // scope 1 at $DIR/inline_closure_borrows_arg.rs:+5:5: +5:12
+        StorageLive(_6);                 // scope 1 at $DIR/inline_closure_borrows_arg.rs:+5:7: +5:8
+        _6 = &(*_2);                     // scope 1 at $DIR/inline_closure_borrows_arg.rs:+5:7: +5:8
+        StorageLive(_7);                 // scope 1 at $DIR/inline_closure_borrows_arg.rs:+5:10: +5:11
+        _7 = &(*_2);                     // scope 1 at $DIR/inline_closure_borrows_arg.rs:+5:10: +5:11
+        Deinit(_5);                      // scope 1 at $DIR/inline_closure_borrows_arg.rs:+5:5: +5:12
+        (_5.0: &i32) = move _6;          // scope 1 at $DIR/inline_closure_borrows_arg.rs:+5:5: +5:12
+        (_5.1: &i32) = move _7;          // scope 1 at $DIR/inline_closure_borrows_arg.rs:+5:5: +5:12
+        StorageLive(_8);                 // scope 1 at $DIR/inline_closure_borrows_arg.rs:+5:5: +5:12
+        _8 = move (_5.0: &i32);          // scope 1 at $DIR/inline_closure_borrows_arg.rs:+5:5: +5:12
+        StorageLive(_9);                 // scope 1 at $DIR/inline_closure_borrows_arg.rs:+5:5: +5:12
+        _9 = move (_5.1: &i32);          // scope 1 at $DIR/inline_closure_borrows_arg.rs:+5:5: +5:12
+        StorageLive(_10);                // scope 2 at $DIR/inline_closure_borrows_arg.rs:+2:13: +2:21
+        _10 = _8;                        // scope 2 at $DIR/inline_closure_borrows_arg.rs:+2:24: +2:27
+        _0 = (*_10);                     // scope 3 at $DIR/inline_closure_borrows_arg.rs:+3:9: +3:18
+        StorageDead(_10);                // scope 2 at $DIR/inline_closure_borrows_arg.rs:+4:5: +4:6
+        StorageDead(_9);                 // scope 1 at $DIR/inline_closure_borrows_arg.rs:+5:5: +5:12
+        StorageDead(_8);                 // scope 1 at $DIR/inline_closure_borrows_arg.rs:+5:5: +5:12
+        StorageDead(_7);                 // scope 1 at $DIR/inline_closure_borrows_arg.rs:+5:11: +5:12
+        StorageDead(_6);                 // scope 1 at $DIR/inline_closure_borrows_arg.rs:+5:11: +5:12
+        StorageDead(_5);                 // scope 1 at $DIR/inline_closure_borrows_arg.rs:+5:11: +5:12
+        StorageDead(_4);                 // scope 1 at $DIR/inline_closure_borrows_arg.rs:+5:11: +5:12
+        StorageDead(_3);                 // scope 0 at $DIR/inline_closure_borrows_arg.rs:+6:1: +6:2
+        return;                          // scope 0 at $DIR/inline_closure_borrows_arg.rs:+6:2: +6:2
     }
 }
diff --git a/src/test/mir-opt/inline/inline-closure-borrows-arg.rs b/src/test/mir-opt/inline/inline_closure_borrows_arg.rs
similarity index 100%
rename from src/test/mir-opt/inline/inline-closure-borrows-arg.rs
rename to src/test/mir-opt/inline/inline_closure_borrows_arg.rs
diff --git a/src/test/mir-opt/inline/inline_closure_captures.foo.Inline.after.mir b/src/test/mir-opt/inline/inline_closure_captures.foo.Inline.after.mir
index a2234e7c1effd..fd19c288666bd 100644
--- a/src/test/mir-opt/inline/inline_closure_captures.foo.Inline.after.mir
+++ b/src/test/mir-opt/inline/inline_closure_captures.foo.Inline.after.mir
@@ -1,65 +1,65 @@
 // MIR for `foo` after Inline
 
 fn foo(_1: T, _2: i32) -> (i32, T) {
-    debug t => _1;                       // in scope 0 at $DIR/inline-closure-captures.rs:+0:17: +0:18
-    debug q => _2;                       // in scope 0 at $DIR/inline-closure-captures.rs:+0:23: +0:24
-    let mut _0: (i32, T);                // return place in scope 0 at $DIR/inline-closure-captures.rs:+0:34: +0:42
-    let _3: [closure@foo<T>::{closure#0}]; // in scope 0 at $DIR/inline-closure-captures.rs:+1:9: +1:10
-    let mut _4: &i32;                    // in scope 0 at $DIR/inline-closure-captures.rs:+1:13: +1:24
-    let mut _5: &T;                      // in scope 0 at $DIR/inline-closure-captures.rs:+1:13: +1:24
-    let mut _6: &[closure@foo<T>::{closure#0}]; // in scope 0 at $DIR/inline-closure-captures.rs:+2:5: +2:6
-    let mut _7: (i32,);                  // in scope 0 at $DIR/inline-closure-captures.rs:+2:5: +2:9
-    let mut _8: i32;                     // in scope 0 at $DIR/inline-closure-captures.rs:+2:7: +2:8
-    let mut _9: i32;                     // in scope 0 at $DIR/inline-closure-captures.rs:+2:5: +2:9
+    debug t => _1;                       // in scope 0 at $DIR/inline_closure_captures.rs:+0:17: +0:18
+    debug q => _2;                       // in scope 0 at $DIR/inline_closure_captures.rs:+0:23: +0:24
+    let mut _0: (i32, T);                // return place in scope 0 at $DIR/inline_closure_captures.rs:+0:34: +0:42
+    let _3: [closure@foo<T>::{closure#0}]; // in scope 0 at $DIR/inline_closure_captures.rs:+1:9: +1:10
+    let mut _4: &i32;                    // in scope 0 at $DIR/inline_closure_captures.rs:+1:13: +1:24
+    let mut _5: &T;                      // in scope 0 at $DIR/inline_closure_captures.rs:+1:13: +1:24
+    let mut _6: &[closure@foo<T>::{closure#0}]; // in scope 0 at $DIR/inline_closure_captures.rs:+2:5: +2:6
+    let mut _7: (i32,);                  // in scope 0 at $DIR/inline_closure_captures.rs:+2:5: +2:9
+    let mut _8: i32;                     // in scope 0 at $DIR/inline_closure_captures.rs:+2:7: +2:8
+    let mut _9: i32;                     // in scope 0 at $DIR/inline_closure_captures.rs:+2:5: +2:9
     scope 1 {
-        debug x => _3;                   // in scope 1 at $DIR/inline-closure-captures.rs:+1:9: +1:10
-        scope 2 (inlined foo::<T>::{closure#0}) { // at $DIR/inline-closure-captures.rs:12:5: 12:9
-            debug _q => _9;              // in scope 2 at $DIR/inline-closure-captures.rs:+1:14: +1:16
-            debug q => (*((*_6).0: &i32)); // in scope 2 at $DIR/inline-closure-captures.rs:+0:23: +0:24
-            debug t => (*((*_6).1: &T)); // in scope 2 at $DIR/inline-closure-captures.rs:+0:17: +0:18
-            let mut _10: i32;            // in scope 2 at $DIR/inline-closure-captures.rs:+1:19: +1:20
-            let mut _11: T;              // in scope 2 at $DIR/inline-closure-captures.rs:+1:22: +1:23
-            let mut _12: &i32;           // in scope 2 at $DIR/inline-closure-captures.rs:+1:13: +1:24
-            let mut _13: &T;             // in scope 2 at $DIR/inline-closure-captures.rs:+1:13: +1:24
+        debug x => _3;                   // in scope 1 at $DIR/inline_closure_captures.rs:+1:9: +1:10
+        scope 2 (inlined foo::<T>::{closure#0}) { // at $DIR/inline_closure_captures.rs:12:5: 12:9
+            debug _q => _9;              // in scope 2 at $DIR/inline_closure_captures.rs:+1:14: +1:16
+            debug q => (*((*_6).0: &i32)); // in scope 2 at $DIR/inline_closure_captures.rs:+0:23: +0:24
+            debug t => (*((*_6).1: &T)); // in scope 2 at $DIR/inline_closure_captures.rs:+0:17: +0:18
+            let mut _10: i32;            // in scope 2 at $DIR/inline_closure_captures.rs:+1:19: +1:20
+            let mut _11: T;              // in scope 2 at $DIR/inline_closure_captures.rs:+1:22: +1:23
+            let mut _12: &i32;           // in scope 2 at $DIR/inline_closure_captures.rs:+1:13: +1:24
+            let mut _13: &T;             // in scope 2 at $DIR/inline_closure_captures.rs:+1:13: +1:24
         }
     }
 
     bb0: {
-        StorageLive(_3);                 // scope 0 at $DIR/inline-closure-captures.rs:+1:9: +1:10
-        StorageLive(_4);                 // scope 0 at $DIR/inline-closure-captures.rs:+1:13: +1:24
-        _4 = &_2;                        // scope 0 at $DIR/inline-closure-captures.rs:+1:13: +1:24
-        StorageLive(_5);                 // scope 0 at $DIR/inline-closure-captures.rs:+1:13: +1:24
-        _5 = &_1;                        // scope 0 at $DIR/inline-closure-captures.rs:+1:13: +1:24
-        Deinit(_3);                      // scope 0 at $DIR/inline-closure-captures.rs:+1:13: +1:24
-        (_3.0: &i32) = move _4;          // scope 0 at $DIR/inline-closure-captures.rs:+1:13: +1:24
-        (_3.1: &T) = move _5;            // scope 0 at $DIR/inline-closure-captures.rs:+1:13: +1:24
-        StorageDead(_5);                 // scope 0 at $DIR/inline-closure-captures.rs:+1:16: +1:17
-        StorageDead(_4);                 // scope 0 at $DIR/inline-closure-captures.rs:+1:16: +1:17
-        StorageLive(_6);                 // scope 1 at $DIR/inline-closure-captures.rs:+2:5: +2:6
-        _6 = &_3;                        // scope 1 at $DIR/inline-closure-captures.rs:+2:5: +2:6
-        StorageLive(_7);                 // scope 1 at $DIR/inline-closure-captures.rs:+2:5: +2:9
-        StorageLive(_8);                 // scope 1 at $DIR/inline-closure-captures.rs:+2:7: +2:8
-        _8 = _2;                         // scope 1 at $DIR/inline-closure-captures.rs:+2:7: +2:8
-        Deinit(_7);                      // scope 1 at $DIR/inline-closure-captures.rs:+2:5: +2:9
-        (_7.0: i32) = move _8;           // scope 1 at $DIR/inline-closure-captures.rs:+2:5: +2:9
-        StorageLive(_9);                 // scope 1 at $DIR/inline-closure-captures.rs:+2:5: +2:9
-        _9 = move (_7.0: i32);           // scope 1 at $DIR/inline-closure-captures.rs:+2:5: +2:9
-        StorageLive(_10);                // scope 2 at $DIR/inline-closure-captures.rs:+1:19: +1:20
-        _12 = deref_copy ((*_6).0: &i32); // scope 2 at $DIR/inline-closure-captures.rs:+1:19: +1:20
-        _10 = (*_12);                    // scope 2 at $DIR/inline-closure-captures.rs:+1:19: +1:20
-        StorageLive(_11);                // scope 2 at $DIR/inline-closure-captures.rs:+1:22: +1:23
-        _13 = deref_copy ((*_6).1: &T);  // scope 2 at $DIR/inline-closure-captures.rs:+1:22: +1:23
-        _11 = (*_13);                    // scope 2 at $DIR/inline-closure-captures.rs:+1:22: +1:23
-        Deinit(_0);                      // scope 2 at $DIR/inline-closure-captures.rs:+1:18: +1:24
-        (_0.0: i32) = move _10;          // scope 2 at $DIR/inline-closure-captures.rs:+1:18: +1:24
-        (_0.1: T) = move _11;            // scope 2 at $DIR/inline-closure-captures.rs:+1:18: +1:24
-        StorageDead(_11);                // scope 2 at $DIR/inline-closure-captures.rs:+1:23: +1:24
-        StorageDead(_10);                // scope 2 at $DIR/inline-closure-captures.rs:+1:23: +1:24
-        StorageDead(_9);                 // scope 1 at $DIR/inline-closure-captures.rs:+2:5: +2:9
-        StorageDead(_8);                 // scope 1 at $DIR/inline-closure-captures.rs:+2:8: +2:9
-        StorageDead(_7);                 // scope 1 at $DIR/inline-closure-captures.rs:+2:8: +2:9
-        StorageDead(_6);                 // scope 1 at $DIR/inline-closure-captures.rs:+2:8: +2:9
-        StorageDead(_3);                 // scope 0 at $DIR/inline-closure-captures.rs:+3:1: +3:2
-        return;                          // scope 0 at $DIR/inline-closure-captures.rs:+3:2: +3:2
+        StorageLive(_3);                 // scope 0 at $DIR/inline_closure_captures.rs:+1:9: +1:10
+        StorageLive(_4);                 // scope 0 at $DIR/inline_closure_captures.rs:+1:13: +1:24
+        _4 = &_2;                        // scope 0 at $DIR/inline_closure_captures.rs:+1:13: +1:24
+        StorageLive(_5);                 // scope 0 at $DIR/inline_closure_captures.rs:+1:13: +1:24
+        _5 = &_1;                        // scope 0 at $DIR/inline_closure_captures.rs:+1:13: +1:24
+        Deinit(_3);                      // scope 0 at $DIR/inline_closure_captures.rs:+1:13: +1:24
+        (_3.0: &i32) = move _4;          // scope 0 at $DIR/inline_closure_captures.rs:+1:13: +1:24
+        (_3.1: &T) = move _5;            // scope 0 at $DIR/inline_closure_captures.rs:+1:13: +1:24
+        StorageDead(_5);                 // scope 0 at $DIR/inline_closure_captures.rs:+1:16: +1:17
+        StorageDead(_4);                 // scope 0 at $DIR/inline_closure_captures.rs:+1:16: +1:17
+        StorageLive(_6);                 // scope 1 at $DIR/inline_closure_captures.rs:+2:5: +2:6
+        _6 = &_3;                        // scope 1 at $DIR/inline_closure_captures.rs:+2:5: +2:6
+        StorageLive(_7);                 // scope 1 at $DIR/inline_closure_captures.rs:+2:5: +2:9
+        StorageLive(_8);                 // scope 1 at $DIR/inline_closure_captures.rs:+2:7: +2:8
+        _8 = _2;                         // scope 1 at $DIR/inline_closure_captures.rs:+2:7: +2:8
+        Deinit(_7);                      // scope 1 at $DIR/inline_closure_captures.rs:+2:5: +2:9
+        (_7.0: i32) = move _8;           // scope 1 at $DIR/inline_closure_captures.rs:+2:5: +2:9
+        StorageLive(_9);                 // scope 1 at $DIR/inline_closure_captures.rs:+2:5: +2:9
+        _9 = move (_7.0: i32);           // scope 1 at $DIR/inline_closure_captures.rs:+2:5: +2:9
+        StorageLive(_10);                // scope 2 at $DIR/inline_closure_captures.rs:+1:19: +1:20
+        _12 = deref_copy ((*_6).0: &i32); // scope 2 at $DIR/inline_closure_captures.rs:+1:19: +1:20
+        _10 = (*_12);                    // scope 2 at $DIR/inline_closure_captures.rs:+1:19: +1:20
+        StorageLive(_11);                // scope 2 at $DIR/inline_closure_captures.rs:+1:22: +1:23
+        _13 = deref_copy ((*_6).1: &T);  // scope 2 at $DIR/inline_closure_captures.rs:+1:22: +1:23
+        _11 = (*_13);                    // scope 2 at $DIR/inline_closure_captures.rs:+1:22: +1:23
+        Deinit(_0);                      // scope 2 at $DIR/inline_closure_captures.rs:+1:18: +1:24
+        (_0.0: i32) = move _10;          // scope 2 at $DIR/inline_closure_captures.rs:+1:18: +1:24
+        (_0.1: T) = move _11;            // scope 2 at $DIR/inline_closure_captures.rs:+1:18: +1:24
+        StorageDead(_11);                // scope 2 at $DIR/inline_closure_captures.rs:+1:23: +1:24
+        StorageDead(_10);                // scope 2 at $DIR/inline_closure_captures.rs:+1:23: +1:24
+        StorageDead(_9);                 // scope 1 at $DIR/inline_closure_captures.rs:+2:5: +2:9
+        StorageDead(_8);                 // scope 1 at $DIR/inline_closure_captures.rs:+2:8: +2:9
+        StorageDead(_7);                 // scope 1 at $DIR/inline_closure_captures.rs:+2:8: +2:9
+        StorageDead(_6);                 // scope 1 at $DIR/inline_closure_captures.rs:+2:8: +2:9
+        StorageDead(_3);                 // scope 0 at $DIR/inline_closure_captures.rs:+3:1: +3:2
+        return;                          // scope 0 at $DIR/inline_closure_captures.rs:+3:2: +3:2
     }
 }
diff --git a/src/test/mir-opt/inline/inline-closure-captures.rs b/src/test/mir-opt/inline/inline_closure_captures.rs
similarity index 100%
rename from src/test/mir-opt/inline/inline-closure-captures.rs
rename to src/test/mir-opt/inline/inline_closure_captures.rs
diff --git a/src/test/mir-opt/inline/inline_compatibility.inlined_no_sanitize.Inline.diff b/src/test/mir-opt/inline/inline_compatibility.inlined_no_sanitize.Inline.diff
index cf800ba112945..e30a5e116ea4b 100644
--- a/src/test/mir-opt/inline/inline_compatibility.inlined_no_sanitize.Inline.diff
+++ b/src/test/mir-opt/inline/inline_compatibility.inlined_no_sanitize.Inline.diff
@@ -2,23 +2,23 @@
 + // MIR for `inlined_no_sanitize` after Inline
   
   fn inlined_no_sanitize() -> () {
-      let mut _0: ();                      // return place in scope 0 at $DIR/inline-compatibility.rs:+0:37: +0:37
-      let _1: ();                          // in scope 0 at $DIR/inline-compatibility.rs:+1:5: +1:18
-+     scope 1 (inlined no_sanitize) {      // at $DIR/inline-compatibility.rs:24:5: 24:18
+      let mut _0: ();                      // return place in scope 0 at $DIR/inline_compatibility.rs:+0:37: +0:37
+      let _1: ();                          // in scope 0 at $DIR/inline_compatibility.rs:+1:5: +1:18
++     scope 1 (inlined no_sanitize) {      // at $DIR/inline_compatibility.rs:24:5: 24:18
 +     }
   
       bb0: {
-          StorageLive(_1);                 // scope 0 at $DIR/inline-compatibility.rs:+1:5: +1:18
--         _1 = no_sanitize() -> bb1;       // scope 0 at $DIR/inline-compatibility.rs:+1:5: +1:18
+          StorageLive(_1);                 // scope 0 at $DIR/inline_compatibility.rs:+1:5: +1:18
+-         _1 = no_sanitize() -> bb1;       // scope 0 at $DIR/inline_compatibility.rs:+1:5: +1:18
 -                                          // mir::Constant
--                                          // + span: $DIR/inline-compatibility.rs:24:5: 24:16
+-                                          // + span: $DIR/inline_compatibility.rs:24:5: 24:16
 -                                          // + literal: Const { ty: unsafe fn() {no_sanitize}, val: Value(<ZST>) }
 -     }
 - 
 -     bb1: {
-          StorageDead(_1);                 // scope 0 at $DIR/inline-compatibility.rs:+1:18: +1:19
-          _0 = const ();                   // scope 0 at $DIR/inline-compatibility.rs:+0:37: +2:2
-          return;                          // scope 0 at $DIR/inline-compatibility.rs:+2:2: +2:2
+          StorageDead(_1);                 // scope 0 at $DIR/inline_compatibility.rs:+1:18: +1:19
+          _0 = const ();                   // scope 0 at $DIR/inline_compatibility.rs:+0:37: +2:2
+          return;                          // scope 0 at $DIR/inline_compatibility.rs:+2:2: +2:2
       }
   }
   
diff --git a/src/test/mir-opt/inline/inline_compatibility.inlined_target_feature.Inline.diff b/src/test/mir-opt/inline/inline_compatibility.inlined_target_feature.Inline.diff
index a45f959026d1c..c2b3c46a30c69 100644
--- a/src/test/mir-opt/inline/inline_compatibility.inlined_target_feature.Inline.diff
+++ b/src/test/mir-opt/inline/inline_compatibility.inlined_target_feature.Inline.diff
@@ -2,23 +2,23 @@
 + // MIR for `inlined_target_feature` after Inline
   
   fn inlined_target_feature() -> () {
-      let mut _0: ();                      // return place in scope 0 at $DIR/inline-compatibility.rs:+0:40: +0:40
-      let _1: ();                          // in scope 0 at $DIR/inline-compatibility.rs:+1:5: +1:21
-+     scope 1 (inlined target_feature) {   // at $DIR/inline-compatibility.rs:13:5: 13:21
+      let mut _0: ();                      // return place in scope 0 at $DIR/inline_compatibility.rs:+0:40: +0:40
+      let _1: ();                          // in scope 0 at $DIR/inline_compatibility.rs:+1:5: +1:21
++     scope 1 (inlined target_feature) {   // at $DIR/inline_compatibility.rs:13:5: 13:21
 +     }
   
       bb0: {
-          StorageLive(_1);                 // scope 0 at $DIR/inline-compatibility.rs:+1:5: +1:21
--         _1 = target_feature() -> bb1;    // scope 0 at $DIR/inline-compatibility.rs:+1:5: +1:21
+          StorageLive(_1);                 // scope 0 at $DIR/inline_compatibility.rs:+1:5: +1:21
+-         _1 = target_feature() -> bb1;    // scope 0 at $DIR/inline_compatibility.rs:+1:5: +1:21
 -                                          // mir::Constant
--                                          // + span: $DIR/inline-compatibility.rs:13:5: 13:19
+-                                          // + span: $DIR/inline_compatibility.rs:13:5: 13:19
 -                                          // + literal: Const { ty: unsafe fn() {target_feature}, val: Value(<ZST>) }
 -     }
 - 
 -     bb1: {
-          StorageDead(_1);                 // scope 0 at $DIR/inline-compatibility.rs:+1:21: +1:22
-          _0 = const ();                   // scope 0 at $DIR/inline-compatibility.rs:+0:40: +2:2
-          return;                          // scope 0 at $DIR/inline-compatibility.rs:+2:2: +2:2
+          StorageDead(_1);                 // scope 0 at $DIR/inline_compatibility.rs:+1:21: +1:22
+          _0 = const ();                   // scope 0 at $DIR/inline_compatibility.rs:+0:40: +2:2
+          return;                          // scope 0 at $DIR/inline_compatibility.rs:+2:2: +2:2
       }
   }
   
diff --git a/src/test/mir-opt/inline/inline_compatibility.not_inlined_c_variadic.Inline.diff b/src/test/mir-opt/inline/inline_compatibility.not_inlined_c_variadic.Inline.diff
index 49aea431e46dd..0ca5a5f70b7fd 100644
--- a/src/test/mir-opt/inline/inline_compatibility.not_inlined_c_variadic.Inline.diff
+++ b/src/test/mir-opt/inline/inline_compatibility.not_inlined_c_variadic.Inline.diff
@@ -2,24 +2,24 @@
 + // MIR for `not_inlined_c_variadic` after Inline
   
   fn not_inlined_c_variadic() -> () {
-      let mut _0: ();                      // return place in scope 0 at $DIR/inline-compatibility.rs:+0:40: +0:40
-      let _1: u32;                         // in scope 0 at $DIR/inline-compatibility.rs:+1:9: +1:10
+      let mut _0: ();                      // return place in scope 0 at $DIR/inline_compatibility.rs:+0:40: +0:40
+      let _1: u32;                         // in scope 0 at $DIR/inline_compatibility.rs:+1:9: +1:10
       scope 1 {
-          debug s => _1;                   // in scope 1 at $DIR/inline-compatibility.rs:+1:9: +1:10
+          debug s => _1;                   // in scope 1 at $DIR/inline_compatibility.rs:+1:9: +1:10
       }
   
       bb0: {
-          StorageLive(_1);                 // scope 0 at $DIR/inline-compatibility.rs:+1:9: +1:10
-          _1 = sum(const 4_u32, const 4_u32, const 30_u32, const 200_u32, const 1000_u32) -> bb1; // scope 0 at $DIR/inline-compatibility.rs:+1:13: +1:52
+          StorageLive(_1);                 // scope 0 at $DIR/inline_compatibility.rs:+1:9: +1:10
+          _1 = sum(const 4_u32, const 4_u32, const 30_u32, const 200_u32, const 1000_u32) -> bb1; // scope 0 at $DIR/inline_compatibility.rs:+1:13: +1:52
                                            // mir::Constant
-                                           // + span: $DIR/inline-compatibility.rs:42:13: 42:16
+                                           // + span: $DIR/inline_compatibility.rs:42:13: 42:16
                                            // + literal: Const { ty: unsafe extern "C" fn(u32, ...) -> u32 {sum}, val: Value(<ZST>) }
       }
   
       bb1: {
-          _0 = const ();                   // scope 0 at $DIR/inline-compatibility.rs:+0:40: +2:2
-          StorageDead(_1);                 // scope 0 at $DIR/inline-compatibility.rs:+2:1: +2:2
-          return;                          // scope 0 at $DIR/inline-compatibility.rs:+2:2: +2:2
+          _0 = const ();                   // scope 0 at $DIR/inline_compatibility.rs:+0:40: +2:2
+          StorageDead(_1);                 // scope 0 at $DIR/inline_compatibility.rs:+2:1: +2:2
+          return;                          // scope 0 at $DIR/inline_compatibility.rs:+2:2: +2:2
       }
   }
   
diff --git a/src/test/mir-opt/inline/inline_compatibility.not_inlined_no_sanitize.Inline.diff b/src/test/mir-opt/inline/inline_compatibility.not_inlined_no_sanitize.Inline.diff
index 94ce574a94dc2..00d405c77f91d 100644
--- a/src/test/mir-opt/inline/inline_compatibility.not_inlined_no_sanitize.Inline.diff
+++ b/src/test/mir-opt/inline/inline_compatibility.not_inlined_no_sanitize.Inline.diff
@@ -2,21 +2,21 @@
 + // MIR for `not_inlined_no_sanitize` after Inline
   
   fn not_inlined_no_sanitize() -> () {
-      let mut _0: ();                      // return place in scope 0 at $DIR/inline-compatibility.rs:+0:41: +0:41
-      let _1: ();                          // in scope 0 at $DIR/inline-compatibility.rs:+1:5: +1:18
+      let mut _0: ();                      // return place in scope 0 at $DIR/inline_compatibility.rs:+0:41: +0:41
+      let _1: ();                          // in scope 0 at $DIR/inline_compatibility.rs:+1:5: +1:18
   
       bb0: {
-          StorageLive(_1);                 // scope 0 at $DIR/inline-compatibility.rs:+1:5: +1:18
-          _1 = no_sanitize() -> bb1;       // scope 0 at $DIR/inline-compatibility.rs:+1:5: +1:18
+          StorageLive(_1);                 // scope 0 at $DIR/inline_compatibility.rs:+1:5: +1:18
+          _1 = no_sanitize() -> bb1;       // scope 0 at $DIR/inline_compatibility.rs:+1:5: +1:18
                                            // mir::Constant
-                                           // + span: $DIR/inline-compatibility.rs:29:5: 29:16
+                                           // + span: $DIR/inline_compatibility.rs:29:5: 29:16
                                            // + literal: Const { ty: unsafe fn() {no_sanitize}, val: Value(<ZST>) }
       }
   
       bb1: {
-          StorageDead(_1);                 // scope 0 at $DIR/inline-compatibility.rs:+1:18: +1:19
-          _0 = const ();                   // scope 0 at $DIR/inline-compatibility.rs:+0:41: +2:2
-          return;                          // scope 0 at $DIR/inline-compatibility.rs:+2:2: +2:2
+          StorageDead(_1);                 // scope 0 at $DIR/inline_compatibility.rs:+1:18: +1:19
+          _0 = const ();                   // scope 0 at $DIR/inline_compatibility.rs:+0:41: +2:2
+          return;                          // scope 0 at $DIR/inline_compatibility.rs:+2:2: +2:2
       }
   }
   
diff --git a/src/test/mir-opt/inline/inline_compatibility.not_inlined_target_feature.Inline.diff b/src/test/mir-opt/inline/inline_compatibility.not_inlined_target_feature.Inline.diff
index 8506e257b3fe9..8b9c86f5515a3 100644
--- a/src/test/mir-opt/inline/inline_compatibility.not_inlined_target_feature.Inline.diff
+++ b/src/test/mir-opt/inline/inline_compatibility.not_inlined_target_feature.Inline.diff
@@ -2,21 +2,21 @@
 + // MIR for `not_inlined_target_feature` after Inline
   
   fn not_inlined_target_feature() -> () {
-      let mut _0: ();                      // return place in scope 0 at $DIR/inline-compatibility.rs:+0:44: +0:44
-      let _1: ();                          // in scope 0 at $DIR/inline-compatibility.rs:+1:5: +1:21
+      let mut _0: ();                      // return place in scope 0 at $DIR/inline_compatibility.rs:+0:44: +0:44
+      let _1: ();                          // in scope 0 at $DIR/inline_compatibility.rs:+1:5: +1:21
   
       bb0: {
-          StorageLive(_1);                 // scope 0 at $DIR/inline-compatibility.rs:+1:5: +1:21
-          _1 = target_feature() -> bb1;    // scope 0 at $DIR/inline-compatibility.rs:+1:5: +1:21
+          StorageLive(_1);                 // scope 0 at $DIR/inline_compatibility.rs:+1:5: +1:21
+          _1 = target_feature() -> bb1;    // scope 0 at $DIR/inline_compatibility.rs:+1:5: +1:21
                                            // mir::Constant
-                                           // + span: $DIR/inline-compatibility.rs:18:5: 18:19
+                                           // + span: $DIR/inline_compatibility.rs:18:5: 18:19
                                            // + literal: Const { ty: unsafe fn() {target_feature}, val: Value(<ZST>) }
       }
   
       bb1: {
-          StorageDead(_1);                 // scope 0 at $DIR/inline-compatibility.rs:+1:21: +1:22
-          _0 = const ();                   // scope 0 at $DIR/inline-compatibility.rs:+0:44: +2:2
-          return;                          // scope 0 at $DIR/inline-compatibility.rs:+2:2: +2:2
+          StorageDead(_1);                 // scope 0 at $DIR/inline_compatibility.rs:+1:21: +1:22
+          _0 = const ();                   // scope 0 at $DIR/inline_compatibility.rs:+0:44: +2:2
+          return;                          // scope 0 at $DIR/inline_compatibility.rs:+2:2: +2:2
       }
   }
   
diff --git a/src/test/mir-opt/inline/inline-compatibility.rs b/src/test/mir-opt/inline/inline_compatibility.rs
similarity index 100%
rename from src/test/mir-opt/inline/inline-compatibility.rs
rename to src/test/mir-opt/inline/inline_compatibility.rs
diff --git a/src/test/mir-opt/inline/inline_cycle.one.Inline.diff b/src/test/mir-opt/inline/inline_cycle.one.Inline.diff
index a4d706de0ba58..5510cd7bc8ced 100644
--- a/src/test/mir-opt/inline/inline_cycle.one.Inline.diff
+++ b/src/test/mir-opt/inline/inline_cycle.one.Inline.diff
@@ -2,29 +2,29 @@
 + // MIR for `one` after Inline
   
   fn one() -> () {
-      let mut _0: ();                      // return place in scope 0 at $DIR/inline-cycle.rs:+0:10: +0:10
-      let _1: ();                          // in scope 0 at $DIR/inline-cycle.rs:+1:5: +1:24
-+     scope 1 (inlined <C as Call>::call) { // at $DIR/inline-cycle.rs:14:5: 14:24
-+         scope 2 (inlined <A<C> as Call>::call) { // at $DIR/inline-cycle.rs:43:9: 43:23
-+             scope 3 (inlined <B<C> as Call>::call) { // at $DIR/inline-cycle.rs:28:9: 28:31
+      let mut _0: ();                      // return place in scope 0 at $DIR/inline_cycle.rs:+0:10: +0:10
+      let _1: ();                          // in scope 0 at $DIR/inline_cycle.rs:+1:5: +1:24
++     scope 1 (inlined <C as Call>::call) { // at $DIR/inline_cycle.rs:14:5: 14:24
++         scope 2 (inlined <A<C> as Call>::call) { // at $DIR/inline_cycle.rs:43:9: 43:23
++             scope 3 (inlined <B<C> as Call>::call) { // at $DIR/inline_cycle.rs:28:9: 28:31
 +             }
 +         }
 +     }
   
       bb0: {
-          StorageLive(_1);                 // scope 0 at $DIR/inline-cycle.rs:+1:5: +1:24
--         _1 = <C as Call>::call() -> bb1; // scope 0 at $DIR/inline-cycle.rs:+1:5: +1:24
-+         _1 = <C as Call>::call() -> bb1; // scope 3 at $DIR/inline-cycle.rs:36:9: 36:28
+          StorageLive(_1);                 // scope 0 at $DIR/inline_cycle.rs:+1:5: +1:24
+-         _1 = <C as Call>::call() -> bb1; // scope 0 at $DIR/inline_cycle.rs:+1:5: +1:24
++         _1 = <C as Call>::call() -> bb1; // scope 3 at $DIR/inline_cycle.rs:36:9: 36:28
                                            // mir::Constant
--                                          // + span: $DIR/inline-cycle.rs:14:5: 14:22
-+                                          // + span: $DIR/inline-cycle.rs:36:9: 36:26
+-                                          // + span: $DIR/inline_cycle.rs:14:5: 14:22
++                                          // + span: $DIR/inline_cycle.rs:36:9: 36:26
                                            // + literal: Const { ty: fn() {<C as Call>::call}, val: Value(<ZST>) }
       }
   
       bb1: {
-          StorageDead(_1);                 // scope 0 at $DIR/inline-cycle.rs:+1:24: +1:25
-          _0 = const ();                   // scope 0 at $DIR/inline-cycle.rs:+0:10: +2:2
-          return;                          // scope 0 at $DIR/inline-cycle.rs:+2:2: +2:2
+          StorageDead(_1);                 // scope 0 at $DIR/inline_cycle.rs:+1:24: +1:25
+          _0 = const ();                   // scope 0 at $DIR/inline_cycle.rs:+0:10: +2:2
+          return;                          // scope 0 at $DIR/inline_cycle.rs:+2:2: +2:2
       }
   }
   
diff --git a/src/test/mir-opt/inline/inline-cycle.rs b/src/test/mir-opt/inline/inline_cycle.rs
similarity index 100%
rename from src/test/mir-opt/inline/inline-cycle.rs
rename to src/test/mir-opt/inline/inline_cycle.rs
diff --git a/src/test/mir-opt/inline/inline_cycle.two.Inline.diff b/src/test/mir-opt/inline/inline_cycle.two.Inline.diff
index b1a5b62ef1d36..eceeb96f79f08 100644
--- a/src/test/mir-opt/inline/inline_cycle.two.Inline.diff
+++ b/src/test/mir-opt/inline/inline_cycle.two.Inline.diff
@@ -2,54 +2,54 @@
 + // MIR for `two` after Inline
   
   fn two() -> () {
-      let mut _0: ();                      // return place in scope 0 at $DIR/inline-cycle.rs:+0:10: +0:10
-      let _1: ();                          // in scope 0 at $DIR/inline-cycle.rs:+1:5: +1:12
-+     let mut _2: fn() {f};                // in scope 0 at $DIR/inline-cycle.rs:+1:5: +1:12
-+     scope 1 (inlined call::<fn() {f}>) { // at $DIR/inline-cycle.rs:49:5: 49:12
-+         debug f => _2;                   // in scope 1 at $DIR/inline-cycle.rs:53:22: 53:23
-+         let _3: ();                      // in scope 1 at $DIR/inline-cycle.rs:54:5: 54:8
-+         let mut _4: fn() {f};            // in scope 1 at $DIR/inline-cycle.rs:54:5: 54:6
-+         let mut _5: ();                  // in scope 1 at $DIR/inline-cycle.rs:54:5: 54:8
-+         scope 2 (inlined <fn() {f} as FnOnce<()>>::call_once - shim(fn() {f})) { // at $DIR/inline-cycle.rs:54:5: 54:8
+      let mut _0: ();                      // return place in scope 0 at $DIR/inline_cycle.rs:+0:10: +0:10
+      let _1: ();                          // in scope 0 at $DIR/inline_cycle.rs:+1:5: +1:12
++     let mut _2: fn() {f};                // in scope 0 at $DIR/inline_cycle.rs:+1:5: +1:12
++     scope 1 (inlined call::<fn() {f}>) { // at $DIR/inline_cycle.rs:49:5: 49:12
++         debug f => _2;                   // in scope 1 at $DIR/inline_cycle.rs:53:22: 53:23
++         let _3: ();                      // in scope 1 at $DIR/inline_cycle.rs:54:5: 54:8
++         let mut _4: fn() {f};            // in scope 1 at $DIR/inline_cycle.rs:54:5: 54:6
++         let mut _5: ();                  // in scope 1 at $DIR/inline_cycle.rs:54:5: 54:8
++         scope 2 (inlined <fn() {f} as FnOnce<()>>::call_once - shim(fn() {f})) { // at $DIR/inline_cycle.rs:54:5: 54:8
 +             scope 3 (inlined f) {        // at $SRC_DIR/core/src/ops/function.rs:LL:COL
-+                 let _6: ();              // in scope 3 at $DIR/inline-cycle.rs:59:5: 59:12
++                 let _6: ();              // in scope 3 at $DIR/inline_cycle.rs:59:5: 59:12
 +             }
 +         }
 +     }
   
       bb0: {
-          StorageLive(_1);                 // scope 0 at $DIR/inline-cycle.rs:+1:5: +1:12
--         _1 = call::<fn() {f}>(f) -> bb1; // scope 0 at $DIR/inline-cycle.rs:+1:5: +1:12
-+         StorageLive(_2);                 // scope 0 at $DIR/inline-cycle.rs:+1:5: +1:12
-+         _2 = f;                          // scope 0 at $DIR/inline-cycle.rs:+1:5: +1:12
+          StorageLive(_1);                 // scope 0 at $DIR/inline_cycle.rs:+1:5: +1:12
+-         _1 = call::<fn() {f}>(f) -> bb1; // scope 0 at $DIR/inline_cycle.rs:+1:5: +1:12
++         StorageLive(_2);                 // scope 0 at $DIR/inline_cycle.rs:+1:5: +1:12
++         _2 = f;                          // scope 0 at $DIR/inline_cycle.rs:+1:5: +1:12
                                            // mir::Constant
--                                          // + span: $DIR/inline-cycle.rs:49:5: 49:9
-+                                          // + span: $DIR/inline-cycle.rs:49:10: 49:11
+-                                          // + span: $DIR/inline_cycle.rs:49:5: 49:9
++                                          // + span: $DIR/inline_cycle.rs:49:10: 49:11
 +                                          // + literal: Const { ty: fn() {f}, val: Value(<ZST>) }
-+         StorageLive(_3);                 // scope 1 at $DIR/inline-cycle.rs:54:5: 54:8
-+         StorageLive(_4);                 // scope 1 at $DIR/inline-cycle.rs:54:5: 54:6
-+         _4 = move _2;                    // scope 1 at $DIR/inline-cycle.rs:54:5: 54:6
-+         StorageLive(_5);                 // scope 1 at $DIR/inline-cycle.rs:54:5: 54:8
-+         StorageLive(_6);                 // scope 3 at $DIR/inline-cycle.rs:59:5: 59:12
-+         _6 = call::<fn() {f}>(f) -> bb1; // scope 3 at $DIR/inline-cycle.rs:59:5: 59:12
++         StorageLive(_3);                 // scope 1 at $DIR/inline_cycle.rs:54:5: 54:8
++         StorageLive(_4);                 // scope 1 at $DIR/inline_cycle.rs:54:5: 54:6
++         _4 = move _2;                    // scope 1 at $DIR/inline_cycle.rs:54:5: 54:6
++         StorageLive(_5);                 // scope 1 at $DIR/inline_cycle.rs:54:5: 54:8
++         StorageLive(_6);                 // scope 3 at $DIR/inline_cycle.rs:59:5: 59:12
++         _6 = call::<fn() {f}>(f) -> bb1; // scope 3 at $DIR/inline_cycle.rs:59:5: 59:12
 +                                          // mir::Constant
-+                                          // + span: $DIR/inline-cycle.rs:59:5: 59:9
++                                          // + span: $DIR/inline_cycle.rs:59:5: 59:9
                                            // + literal: Const { ty: fn(fn() {f}) {call::<fn() {f}>}, val: Value(<ZST>) }
                                            // mir::Constant
--                                          // + span: $DIR/inline-cycle.rs:49:10: 49:11
-+                                          // + span: $DIR/inline-cycle.rs:59:10: 59:11
+-                                          // + span: $DIR/inline_cycle.rs:49:10: 49:11
++                                          // + span: $DIR/inline_cycle.rs:59:10: 59:11
                                            // + literal: Const { ty: fn() {f}, val: Value(<ZST>) }
       }
   
       bb1: {
-+         StorageDead(_6);                 // scope 3 at $DIR/inline-cycle.rs:59:12: 59:13
-+         StorageDead(_5);                 // scope 1 at $DIR/inline-cycle.rs:54:7: 54:8
-+         StorageDead(_4);                 // scope 1 at $DIR/inline-cycle.rs:54:7: 54:8
-+         StorageDead(_3);                 // scope 1 at $DIR/inline-cycle.rs:54:8: 54:9
-+         StorageDead(_2);                 // scope 0 at $DIR/inline-cycle.rs:+1:5: +1:12
-          StorageDead(_1);                 // scope 0 at $DIR/inline-cycle.rs:+1:12: +1:13
-          _0 = const ();                   // scope 0 at $DIR/inline-cycle.rs:+0:10: +2:2
-          return;                          // scope 0 at $DIR/inline-cycle.rs:+2:2: +2:2
++         StorageDead(_6);                 // scope 3 at $DIR/inline_cycle.rs:59:12: 59:13
++         StorageDead(_5);                 // scope 1 at $DIR/inline_cycle.rs:54:7: 54:8
++         StorageDead(_4);                 // scope 1 at $DIR/inline_cycle.rs:54:7: 54:8
++         StorageDead(_3);                 // scope 1 at $DIR/inline_cycle.rs:54:8: 54:9
++         StorageDead(_2);                 // scope 0 at $DIR/inline_cycle.rs:+1:5: +1:12
+          StorageDead(_1);                 // scope 0 at $DIR/inline_cycle.rs:+1:12: +1:13
+          _0 = const ();                   // scope 0 at $DIR/inline_cycle.rs:+0:10: +2:2
+          return;                          // scope 0 at $DIR/inline_cycle.rs:+2:2: +2:2
       }
   }
   
diff --git a/src/test/mir-opt/inline/inline_cycle_generic.main.Inline.diff b/src/test/mir-opt/inline/inline_cycle_generic.main.Inline.diff
index fc5d57ce8bf2f..52debab4dd1c0 100644
--- a/src/test/mir-opt/inline/inline_cycle_generic.main.Inline.diff
+++ b/src/test/mir-opt/inline/inline_cycle_generic.main.Inline.diff
@@ -2,31 +2,31 @@
 + // MIR for `main` after Inline
   
   fn main() -> () {
-      let mut _0: ();                      // return place in scope 0 at $DIR/inline-cycle-generic.rs:+0:11: +0:11
-      let _1: ();                          // in scope 0 at $DIR/inline-cycle-generic.rs:+1:5: +1:24
-+     scope 1 (inlined <C as Call>::call) { // at $DIR/inline-cycle-generic.rs:9:5: 9:24
-+         scope 2 (inlined <B<A> as Call>::call) { // at $DIR/inline-cycle-generic.rs:38:9: 38:31
-+             scope 3 (inlined <A as Call>::call) { // at $DIR/inline-cycle-generic.rs:31:9: 31:28
-+                 scope 4 (inlined <B<C> as Call>::call) { // at $DIR/inline-cycle-generic.rs:23:9: 23:31
+      let mut _0: ();                      // return place in scope 0 at $DIR/inline_cycle_generic.rs:+0:11: +0:11
+      let _1: ();                          // in scope 0 at $DIR/inline_cycle_generic.rs:+1:5: +1:24
++     scope 1 (inlined <C as Call>::call) { // at $DIR/inline_cycle_generic.rs:9:5: 9:24
++         scope 2 (inlined <B<A> as Call>::call) { // at $DIR/inline_cycle_generic.rs:38:9: 38:31
++             scope 3 (inlined <A as Call>::call) { // at $DIR/inline_cycle_generic.rs:31:9: 31:28
++                 scope 4 (inlined <B<C> as Call>::call) { // at $DIR/inline_cycle_generic.rs:23:9: 23:31
 +                 }
 +             }
 +         }
 +     }
   
       bb0: {
-          StorageLive(_1);                 // scope 0 at $DIR/inline-cycle-generic.rs:+1:5: +1:24
--         _1 = <C as Call>::call() -> bb1; // scope 0 at $DIR/inline-cycle-generic.rs:+1:5: +1:24
-+         _1 = <C as Call>::call() -> bb1; // scope 4 at $DIR/inline-cycle-generic.rs:31:9: 31:28
+          StorageLive(_1);                 // scope 0 at $DIR/inline_cycle_generic.rs:+1:5: +1:24
+-         _1 = <C as Call>::call() -> bb1; // scope 0 at $DIR/inline_cycle_generic.rs:+1:5: +1:24
++         _1 = <C as Call>::call() -> bb1; // scope 4 at $DIR/inline_cycle_generic.rs:31:9: 31:28
                                            // mir::Constant
--                                          // + span: $DIR/inline-cycle-generic.rs:9:5: 9:22
-+                                          // + span: $DIR/inline-cycle-generic.rs:31:9: 31:26
+-                                          // + span: $DIR/inline_cycle_generic.rs:9:5: 9:22
++                                          // + span: $DIR/inline_cycle_generic.rs:31:9: 31:26
                                            // + literal: Const { ty: fn() {<C as Call>::call}, val: Value(<ZST>) }
       }
   
       bb1: {
-          StorageDead(_1);                 // scope 0 at $DIR/inline-cycle-generic.rs:+1:24: +1:25
-          _0 = const ();                   // scope 0 at $DIR/inline-cycle-generic.rs:+0:11: +2:2
-          return;                          // scope 0 at $DIR/inline-cycle-generic.rs:+2:2: +2:2
+          StorageDead(_1);                 // scope 0 at $DIR/inline_cycle_generic.rs:+1:24: +1:25
+          _0 = const ();                   // scope 0 at $DIR/inline_cycle_generic.rs:+0:11: +2:2
+          return;                          // scope 0 at $DIR/inline_cycle_generic.rs:+2:2: +2:2
       }
   }
   
diff --git a/src/test/mir-opt/inline/inline-cycle-generic.rs b/src/test/mir-opt/inline/inline_cycle_generic.rs
similarity index 100%
rename from src/test/mir-opt/inline/inline-cycle-generic.rs
rename to src/test/mir-opt/inline/inline_cycle_generic.rs
diff --git a/src/test/mir-opt/inline/inline_diverging.f.Inline.diff b/src/test/mir-opt/inline/inline_diverging.f.Inline.diff
index cef4cfc67ab29..b49191f495b94 100644
--- a/src/test/mir-opt/inline/inline_diverging.f.Inline.diff
+++ b/src/test/mir-opt/inline/inline_diverging.f.Inline.diff
@@ -2,23 +2,23 @@
 + // MIR for `f` after Inline
   
   fn f() -> () {
-      let mut _0: ();                      // return place in scope 0 at $DIR/inline-diverging.rs:+0:12: +0:12
-      let mut _1: !;                       // in scope 0 at $DIR/inline-diverging.rs:+0:12: +2:2
-      let _2: !;                           // in scope 0 at $DIR/inline-diverging.rs:+1:5: +1:12
-+     scope 1 (inlined sleep) {            // at $DIR/inline-diverging.rs:8:5: 8:12
+      let mut _0: ();                      // return place in scope 0 at $DIR/inline_diverging.rs:+0:12: +0:12
+      let mut _1: !;                       // in scope 0 at $DIR/inline_diverging.rs:+0:12: +2:2
+      let _2: !;                           // in scope 0 at $DIR/inline_diverging.rs:+1:5: +1:12
++     scope 1 (inlined sleep) {            // at $DIR/inline_diverging.rs:8:5: 8:12
 +     }
   
       bb0: {
-          StorageLive(_2);                 // scope 0 at $DIR/inline-diverging.rs:+1:5: +1:12
--         _2 = sleep();                    // scope 0 at $DIR/inline-diverging.rs:+1:5: +1:12
+          StorageLive(_2);                 // scope 0 at $DIR/inline_diverging.rs:+1:5: +1:12
+-         _2 = sleep();                    // scope 0 at $DIR/inline_diverging.rs:+1:5: +1:12
 -                                          // mir::Constant
--                                          // + span: $DIR/inline-diverging.rs:8:5: 8:10
+-                                          // + span: $DIR/inline_diverging.rs:8:5: 8:10
 -                                          // + literal: Const { ty: fn() -> ! {sleep}, val: Value(<ZST>) }
-+         goto -> bb1;                     // scope 0 at $DIR/inline-diverging.rs:+1:5: +1:12
++         goto -> bb1;                     // scope 0 at $DIR/inline_diverging.rs:+1:5: +1:12
 +     }
 + 
 +     bb1: {
-+         goto -> bb1;                     // scope 1 at $DIR/inline-diverging.rs:39:5: 39:12
++         goto -> bb1;                     // scope 1 at $DIR/inline_diverging.rs:39:5: 39:12
       }
   }
   
diff --git a/src/test/mir-opt/inline/inline_diverging.g.Inline.diff b/src/test/mir-opt/inline/inline_diverging.g.Inline.diff
index a71baad3e3ed9..1e703a8fd2baf 100644
--- a/src/test/mir-opt/inline/inline_diverging.g.Inline.diff
+++ b/src/test/mir-opt/inline/inline_diverging.g.Inline.diff
@@ -2,42 +2,42 @@
 + // MIR for `g` after Inline
   
   fn g(_1: i32) -> u32 {
-      debug i => _1;                       // in scope 0 at $DIR/inline-diverging.rs:+0:10: +0:11
-      let mut _0: u32;                     // return place in scope 0 at $DIR/inline-diverging.rs:+0:21: +0:24
-      let mut _2: bool;                    // in scope 0 at $DIR/inline-diverging.rs:+1:8: +1:13
-      let mut _3: i32;                     // in scope 0 at $DIR/inline-diverging.rs:+1:8: +1:9
-      let mut _4: i32;                     // in scope 0 at $DIR/inline-diverging.rs:+2:9: +2:10
-      let mut _5: !;                       // in scope 0 at $DIR/inline-diverging.rs:+3:12: +5:6
-      let _6: !;                           // in scope 0 at $DIR/inline-diverging.rs:+4:9: +4:16
-+     scope 1 (inlined panic) {            // at $DIR/inline-diverging.rs:16:9: 16:16
+      debug i => _1;                       // in scope 0 at $DIR/inline_diverging.rs:+0:10: +0:11
+      let mut _0: u32;                     // return place in scope 0 at $DIR/inline_diverging.rs:+0:21: +0:24
+      let mut _2: bool;                    // in scope 0 at $DIR/inline_diverging.rs:+1:8: +1:13
+      let mut _3: i32;                     // in scope 0 at $DIR/inline_diverging.rs:+1:8: +1:9
+      let mut _4: i32;                     // in scope 0 at $DIR/inline_diverging.rs:+2:9: +2:10
+      let mut _5: !;                       // in scope 0 at $DIR/inline_diverging.rs:+3:12: +5:6
+      let _6: !;                           // in scope 0 at $DIR/inline_diverging.rs:+4:9: +4:16
++     scope 1 (inlined panic) {            // at $DIR/inline_diverging.rs:16:9: 16:16
 +         let mut _7: !;                   // in scope 1 at $SRC_DIR/std/src/panic.rs:LL:COL
 +     }
   
       bb0: {
-          StorageLive(_2);                 // scope 0 at $DIR/inline-diverging.rs:+1:8: +1:13
-          StorageLive(_3);                 // scope 0 at $DIR/inline-diverging.rs:+1:8: +1:9
-          _3 = _1;                         // scope 0 at $DIR/inline-diverging.rs:+1:8: +1:9
-          _2 = Gt(move _3, const 0_i32);   // scope 0 at $DIR/inline-diverging.rs:+1:8: +1:13
-          StorageDead(_3);                 // scope 0 at $DIR/inline-diverging.rs:+1:12: +1:13
-          switchInt(move _2) -> [false: bb2, otherwise: bb1]; // scope 0 at $DIR/inline-diverging.rs:+1:8: +1:13
+          StorageLive(_2);                 // scope 0 at $DIR/inline_diverging.rs:+1:8: +1:13
+          StorageLive(_3);                 // scope 0 at $DIR/inline_diverging.rs:+1:8: +1:9
+          _3 = _1;                         // scope 0 at $DIR/inline_diverging.rs:+1:8: +1:9
+          _2 = Gt(move _3, const 0_i32);   // scope 0 at $DIR/inline_diverging.rs:+1:8: +1:13
+          StorageDead(_3);                 // scope 0 at $DIR/inline_diverging.rs:+1:12: +1:13
+          switchInt(move _2) -> [false: bb2, otherwise: bb1]; // scope 0 at $DIR/inline_diverging.rs:+1:8: +1:13
       }
   
       bb1: {
-          StorageLive(_4);                 // scope 0 at $DIR/inline-diverging.rs:+2:9: +2:10
-          _4 = _1;                         // scope 0 at $DIR/inline-diverging.rs:+2:9: +2:10
-          _0 = move _4 as u32 (IntToInt);  // scope 0 at $DIR/inline-diverging.rs:+2:9: +2:17
-          StorageDead(_4);                 // scope 0 at $DIR/inline-diverging.rs:+2:16: +2:17
-          StorageDead(_2);                 // scope 0 at $DIR/inline-diverging.rs:+5:5: +5:6
-          return;                          // scope 0 at $DIR/inline-diverging.rs:+6:2: +6:2
+          StorageLive(_4);                 // scope 0 at $DIR/inline_diverging.rs:+2:9: +2:10
+          _4 = _1;                         // scope 0 at $DIR/inline_diverging.rs:+2:9: +2:10
+          _0 = move _4 as u32 (IntToInt);  // scope 0 at $DIR/inline_diverging.rs:+2:9: +2:17
+          StorageDead(_4);                 // scope 0 at $DIR/inline_diverging.rs:+2:16: +2:17
+          StorageDead(_2);                 // scope 0 at $DIR/inline_diverging.rs:+5:5: +5:6
+          return;                          // scope 0 at $DIR/inline_diverging.rs:+6:2: +6:2
       }
   
       bb2: {
-          StorageLive(_6);                 // scope 0 at $DIR/inline-diverging.rs:+4:9: +4:16
--         _6 = panic();                    // scope 0 at $DIR/inline-diverging.rs:+4:9: +4:16
+          StorageLive(_6);                 // scope 0 at $DIR/inline_diverging.rs:+4:9: +4:16
+-         _6 = panic();                    // scope 0 at $DIR/inline_diverging.rs:+4:9: +4:16
 +         StorageLive(_7);                 // scope 1 at $SRC_DIR/std/src/panic.rs:LL:COL
 +         _7 = begin_panic::<&str>(const "explicit panic"); // scope 1 at $SRC_DIR/std/src/panic.rs:LL:COL
                                            // mir::Constant
--                                          // + span: $DIR/inline-diverging.rs:16:9: 16:14
+-                                          // + span: $DIR/inline_diverging.rs:16:9: 16:14
 -                                          // + literal: Const { ty: fn() -> ! {panic}, val: Value(<ZST>) }
 +                                          // + span: $SRC_DIR/std/src/panic.rs:LL:COL
 +                                          // + literal: Const { ty: fn(&str) -> ! {begin_panic::<&str>}, val: Value(<ZST>) }
diff --git a/src/test/mir-opt/inline/inline_diverging.h.Inline.diff b/src/test/mir-opt/inline/inline_diverging.h.Inline.diff
index 6569ab24c3814..152153a813ce2 100644
--- a/src/test/mir-opt/inline/inline_diverging.h.Inline.diff
+++ b/src/test/mir-opt/inline/inline_diverging.h.Inline.diff
@@ -2,55 +2,55 @@
 + // MIR for `h` after Inline
   
   fn h() -> () {
-      let mut _0: ();                      // return place in scope 0 at $DIR/inline-diverging.rs:+0:12: +0:12
-      let _1: (!, !);                      // in scope 0 at $DIR/inline-diverging.rs:+1:5: +1:22
-+     let mut _2: fn() -> ! {sleep};       // in scope 0 at $DIR/inline-diverging.rs:+1:5: +1:22
-+     scope 1 (inlined call_twice::<!, fn() -> ! {sleep}>) { // at $DIR/inline-diverging.rs:22:5: 22:22
-+         debug f => _2;                   // in scope 1 at $DIR/inline-diverging.rs:26:36: 26:37
-+         let _3: !;                       // in scope 1 at $DIR/inline-diverging.rs:27:9: 27:10
-+         let mut _4: &fn() -> ! {sleep};  // in scope 1 at $DIR/inline-diverging.rs:27:13: 27:14
-+         let mut _5: ();                  // in scope 1 at $DIR/inline-diverging.rs:27:13: 27:16
-+         let mut _7: &fn() -> ! {sleep};  // in scope 1 at $DIR/inline-diverging.rs:28:13: 28:14
-+         let mut _8: ();                  // in scope 1 at $DIR/inline-diverging.rs:28:13: 28:16
-+         let mut _9: !;                   // in scope 1 at $DIR/inline-diverging.rs:29:6: 29:7
-+         let mut _10: !;                  // in scope 1 at $DIR/inline-diverging.rs:29:9: 29:10
+      let mut _0: ();                      // return place in scope 0 at $DIR/inline_diverging.rs:+0:12: +0:12
+      let _1: (!, !);                      // in scope 0 at $DIR/inline_diverging.rs:+1:5: +1:22
++     let mut _2: fn() -> ! {sleep};       // in scope 0 at $DIR/inline_diverging.rs:+1:5: +1:22
++     scope 1 (inlined call_twice::<!, fn() -> ! {sleep}>) { // at $DIR/inline_diverging.rs:22:5: 22:22
++         debug f => _2;                   // in scope 1 at $DIR/inline_diverging.rs:26:36: 26:37
++         let _3: !;                       // in scope 1 at $DIR/inline_diverging.rs:27:9: 27:10
++         let mut _4: &fn() -> ! {sleep};  // in scope 1 at $DIR/inline_diverging.rs:27:13: 27:14
++         let mut _5: ();                  // in scope 1 at $DIR/inline_diverging.rs:27:13: 27:16
++         let mut _7: &fn() -> ! {sleep};  // in scope 1 at $DIR/inline_diverging.rs:28:13: 28:14
++         let mut _8: ();                  // in scope 1 at $DIR/inline_diverging.rs:28:13: 28:16
++         let mut _9: !;                   // in scope 1 at $DIR/inline_diverging.rs:29:6: 29:7
++         let mut _10: !;                  // in scope 1 at $DIR/inline_diverging.rs:29:9: 29:10
 +         scope 2 {
-+             debug a => _3;               // in scope 2 at $DIR/inline-diverging.rs:27:9: 27:10
-+             let _6: !;                   // in scope 2 at $DIR/inline-diverging.rs:28:9: 28:10
++             debug a => _3;               // in scope 2 at $DIR/inline_diverging.rs:27:9: 27:10
++             let _6: !;                   // in scope 2 at $DIR/inline_diverging.rs:28:9: 28:10
 +             scope 3 {
-+                 debug b => _6;           // in scope 3 at $DIR/inline-diverging.rs:28:9: 28:10
++                 debug b => _6;           // in scope 3 at $DIR/inline_diverging.rs:28:9: 28:10
 +             }
-+             scope 6 (inlined <fn() -> ! {sleep} as Fn<()>>::call - shim(fn() -> ! {sleep})) { // at $DIR/inline-diverging.rs:28:13: 28:16
++             scope 6 (inlined <fn() -> ! {sleep} as Fn<()>>::call - shim(fn() -> ! {sleep})) { // at $DIR/inline_diverging.rs:28:13: 28:16
 +                 scope 7 (inlined sleep) { // at $SRC_DIR/core/src/ops/function.rs:LL:COL
 +                 }
 +             }
 +         }
-+         scope 4 (inlined <fn() -> ! {sleep} as Fn<()>>::call - shim(fn() -> ! {sleep})) { // at $DIR/inline-diverging.rs:27:13: 27:16
++         scope 4 (inlined <fn() -> ! {sleep} as Fn<()>>::call - shim(fn() -> ! {sleep})) { // at $DIR/inline_diverging.rs:27:13: 27:16
 +             scope 5 (inlined sleep) {    // at $SRC_DIR/core/src/ops/function.rs:LL:COL
 +             }
 +         }
 +     }
   
       bb0: {
-          StorageLive(_1);                 // scope 0 at $DIR/inline-diverging.rs:+1:5: +1:22
--         _1 = call_twice::<!, fn() -> ! {sleep}>(sleep); // scope 0 at $DIR/inline-diverging.rs:+1:5: +1:22
-+         StorageLive(_2);                 // scope 0 at $DIR/inline-diverging.rs:+1:5: +1:22
-+         _2 = sleep;                      // scope 0 at $DIR/inline-diverging.rs:+1:5: +1:22
+          StorageLive(_1);                 // scope 0 at $DIR/inline_diverging.rs:+1:5: +1:22
+-         _1 = call_twice::<!, fn() -> ! {sleep}>(sleep); // scope 0 at $DIR/inline_diverging.rs:+1:5: +1:22
++         StorageLive(_2);                 // scope 0 at $DIR/inline_diverging.rs:+1:5: +1:22
++         _2 = sleep;                      // scope 0 at $DIR/inline_diverging.rs:+1:5: +1:22
                                            // mir::Constant
--                                          // + span: $DIR/inline-diverging.rs:22:5: 22:15
+-                                          // + span: $DIR/inline_diverging.rs:22:5: 22:15
 -                                          // + literal: Const { ty: fn(fn() -> ! {sleep}) -> (!, !) {call_twice::<!, fn() -> ! {sleep}>}, val: Value(<ZST>) }
 -                                          // mir::Constant
-                                           // + span: $DIR/inline-diverging.rs:22:16: 22:21
+                                           // + span: $DIR/inline_diverging.rs:22:16: 22:21
                                            // + literal: Const { ty: fn() -> ! {sleep}, val: Value(<ZST>) }
-+         StorageLive(_3);                 // scope 1 at $DIR/inline-diverging.rs:27:9: 27:10
-+         StorageLive(_4);                 // scope 1 at $DIR/inline-diverging.rs:27:13: 27:14
-+         _4 = &_2;                        // scope 1 at $DIR/inline-diverging.rs:27:13: 27:14
-+         StorageLive(_5);                 // scope 1 at $DIR/inline-diverging.rs:27:13: 27:16
-+         goto -> bb1;                     // scope 5 at $DIR/inline-diverging.rs:39:5: 39:12
++         StorageLive(_3);                 // scope 1 at $DIR/inline_diverging.rs:27:9: 27:10
++         StorageLive(_4);                 // scope 1 at $DIR/inline_diverging.rs:27:13: 27:14
++         _4 = &_2;                        // scope 1 at $DIR/inline_diverging.rs:27:13: 27:14
++         StorageLive(_5);                 // scope 1 at $DIR/inline_diverging.rs:27:13: 27:16
++         goto -> bb1;                     // scope 5 at $DIR/inline_diverging.rs:39:5: 39:12
 +     }
 + 
 +     bb1: {
-+         goto -> bb1;                     // scope 5 at $DIR/inline-diverging.rs:39:5: 39:12
++         goto -> bb1;                     // scope 5 at $DIR/inline_diverging.rs:39:5: 39:12
       }
   }
   
diff --git a/src/test/mir-opt/inline/inline-diverging.rs b/src/test/mir-opt/inline/inline_diverging.rs
similarity index 100%
rename from src/test/mir-opt/inline/inline-diverging.rs
rename to src/test/mir-opt/inline/inline_diverging.rs
diff --git a/src/test/mir-opt/inline/inline_generator.main.Inline.diff b/src/test/mir-opt/inline/inline_generator.main.Inline.diff
index 3fd8aad723880..26202f2f40db5 100644
--- a/src/test/mir-opt/inline/inline_generator.main.Inline.diff
+++ b/src/test/mir-opt/inline/inline_generator.main.Inline.diff
@@ -2,59 +2,59 @@
 + // MIR for `main` after Inline
   
   fn main() -> () {
-      let mut _0: ();                      // return place in scope 0 at $DIR/inline-generator.rs:+0:11: +0:11
-      let _1: std::ops::GeneratorState<i32, bool>; // in scope 0 at $DIR/inline-generator.rs:+1:9: +1:11
-      let mut _2: std::pin::Pin<&mut [generator@$DIR/inline-generator.rs:15:5: 15:8]>; // in scope 0 at $DIR/inline-generator.rs:+1:14: +1:32
-      let mut _3: &mut [generator@$DIR/inline-generator.rs:15:5: 15:8]; // in scope 0 at $DIR/inline-generator.rs:+1:23: +1:31
-      let mut _4: [generator@$DIR/inline-generator.rs:15:5: 15:8]; // in scope 0 at $DIR/inline-generator.rs:+1:28: +1:31
-+     let mut _7: bool;                    // in scope 0 at $DIR/inline-generator.rs:+1:14: +1:46
+      let mut _0: ();                      // return place in scope 0 at $DIR/inline_generator.rs:+0:11: +0:11
+      let _1: std::ops::GeneratorState<i32, bool>; // in scope 0 at $DIR/inline_generator.rs:+1:9: +1:11
+      let mut _2: std::pin::Pin<&mut [generator@$DIR/inline_generator.rs:15:5: 15:8]>; // in scope 0 at $DIR/inline_generator.rs:+1:14: +1:32
+      let mut _3: &mut [generator@$DIR/inline_generator.rs:15:5: 15:8]; // in scope 0 at $DIR/inline_generator.rs:+1:23: +1:31
+      let mut _4: [generator@$DIR/inline_generator.rs:15:5: 15:8]; // in scope 0 at $DIR/inline_generator.rs:+1:28: +1:31
++     let mut _7: bool;                    // in scope 0 at $DIR/inline_generator.rs:+1:14: +1:46
       scope 1 {
-          debug _r => _1;                  // in scope 1 at $DIR/inline-generator.rs:+1:9: +1:11
+          debug _r => _1;                  // in scope 1 at $DIR/inline_generator.rs:+1:9: +1:11
       }
-+     scope 2 (inlined g) {                // at $DIR/inline-generator.rs:9:28: 9:31
++     scope 2 (inlined g) {                // at $DIR/inline_generator.rs:9:28: 9:31
 +     }
-+     scope 3 (inlined Pin::<&mut [generator@$DIR/inline-generator.rs:15:5: 15:8]>::new) { // at $DIR/inline-generator.rs:9:14: 9:32
++     scope 3 (inlined Pin::<&mut [generator@$DIR/inline_generator.rs:15:5: 15:8]>::new) { // at $DIR/inline_generator.rs:9:14: 9:32
 +         debug pointer => _3;             // in scope 3 at $SRC_DIR/core/src/pin.rs:LL:COL
-+         let mut _5: &mut [generator@$DIR/inline-generator.rs:15:5: 15:8]; // in scope 3 at $SRC_DIR/core/src/pin.rs:LL:COL
++         let mut _5: &mut [generator@$DIR/inline_generator.rs:15:5: 15:8]; // in scope 3 at $SRC_DIR/core/src/pin.rs:LL:COL
 +         scope 4 {
-+             scope 5 (inlined Pin::<&mut [generator@$DIR/inline-generator.rs:15:5: 15:8]>::new_unchecked) { // at $SRC_DIR/core/src/pin.rs:LL:COL
++             scope 5 (inlined Pin::<&mut [generator@$DIR/inline_generator.rs:15:5: 15:8]>::new_unchecked) { // at $SRC_DIR/core/src/pin.rs:LL:COL
 +                 debug pointer => _5;     // in scope 5 at $SRC_DIR/core/src/pin.rs:LL:COL
-+                 let mut _6: &mut [generator@$DIR/inline-generator.rs:15:5: 15:8]; // in scope 5 at $SRC_DIR/core/src/pin.rs:LL:COL
++                 let mut _6: &mut [generator@$DIR/inline_generator.rs:15:5: 15:8]; // in scope 5 at $SRC_DIR/core/src/pin.rs:LL:COL
 +             }
 +         }
 +     }
-+     scope 6 (inlined g::{closure#0}) {   // at $DIR/inline-generator.rs:9:14: 9:46
-+         debug a => _11;                  // in scope 6 at $DIR/inline-generator.rs:15:6: 15:7
-+         let mut _8: i32;                 // in scope 6 at $DIR/inline-generator.rs:15:17: 15:39
-+         let mut _9: bool;                // in scope 6 at $DIR/inline-generator.rs:15:20: 15:21
-+         let mut _10: bool;               // in scope 6 at $DIR/inline-generator.rs:15:9: 15:9
-+         let _11: bool;                   // in scope 6 at $DIR/inline-generator.rs:15:6: 15:7
-+         let mut _12: u32;                // in scope 6 at $DIR/inline-generator.rs:15:5: 15:41
-+         let mut _13: &mut [generator@$DIR/inline-generator.rs:15:5: 15:8]; // in scope 6 at $DIR/inline-generator.rs:15:5: 15:41
-+         let mut _14: &mut [generator@$DIR/inline-generator.rs:15:5: 15:8]; // in scope 6 at $DIR/inline-generator.rs:15:5: 15:41
-+         let mut _15: &mut [generator@$DIR/inline-generator.rs:15:5: 15:8]; // in scope 6 at $DIR/inline-generator.rs:15:5: 15:41
++     scope 6 (inlined g::{closure#0}) {   // at $DIR/inline_generator.rs:9:14: 9:46
++         debug a => _11;                  // in scope 6 at $DIR/inline_generator.rs:15:6: 15:7
++         let mut _8: i32;                 // in scope 6 at $DIR/inline_generator.rs:15:17: 15:39
++         let mut _9: bool;                // in scope 6 at $DIR/inline_generator.rs:15:20: 15:21
++         let mut _10: bool;               // in scope 6 at $DIR/inline_generator.rs:15:9: 15:9
++         let _11: bool;                   // in scope 6 at $DIR/inline_generator.rs:15:6: 15:7
++         let mut _12: u32;                // in scope 6 at $DIR/inline_generator.rs:15:5: 15:41
++         let mut _13: &mut [generator@$DIR/inline_generator.rs:15:5: 15:8]; // in scope 6 at $DIR/inline_generator.rs:15:5: 15:41
++         let mut _14: &mut [generator@$DIR/inline_generator.rs:15:5: 15:8]; // in scope 6 at $DIR/inline_generator.rs:15:5: 15:41
++         let mut _15: &mut [generator@$DIR/inline_generator.rs:15:5: 15:8]; // in scope 6 at $DIR/inline_generator.rs:15:5: 15:41
 +     }
   
       bb0: {
-          StorageLive(_1);                 // scope 0 at $DIR/inline-generator.rs:+1:9: +1:11
-          StorageLive(_2);                 // scope 0 at $DIR/inline-generator.rs:+1:14: +1:32
-          StorageLive(_3);                 // scope 0 at $DIR/inline-generator.rs:+1:23: +1:31
-          StorageLive(_4);                 // scope 0 at $DIR/inline-generator.rs:+1:28: +1:31
--         _4 = g() -> bb1;                 // scope 0 at $DIR/inline-generator.rs:+1:28: +1:31
+          StorageLive(_1);                 // scope 0 at $DIR/inline_generator.rs:+1:9: +1:11
+          StorageLive(_2);                 // scope 0 at $DIR/inline_generator.rs:+1:14: +1:32
+          StorageLive(_3);                 // scope 0 at $DIR/inline_generator.rs:+1:23: +1:31
+          StorageLive(_4);                 // scope 0 at $DIR/inline_generator.rs:+1:28: +1:31
+-         _4 = g() -> bb1;                 // scope 0 at $DIR/inline_generator.rs:+1:28: +1:31
 -                                          // mir::Constant
--                                          // + span: $DIR/inline-generator.rs:9:28: 9:29
+-                                          // + span: $DIR/inline_generator.rs:9:28: 9:29
 -                                          // + literal: Const { ty: fn() -> impl Generator<bool> {g}, val: Value(<ZST>) }
 -     }
 - 
 -     bb1: {
-+         Deinit(_4);                      // scope 2 at $DIR/inline-generator.rs:15:5: 15:41
-+         discriminant(_4) = 0;            // scope 2 at $DIR/inline-generator.rs:15:5: 15:41
-          _3 = &mut _4;                    // scope 0 at $DIR/inline-generator.rs:+1:23: +1:31
--         _2 = Pin::<&mut [generator@$DIR/inline-generator.rs:15:5: 15:8]>::new(move _3) -> [return: bb2, unwind: bb4]; // scope 0 at $DIR/inline-generator.rs:+1:14: +1:32
++         Deinit(_4);                      // scope 2 at $DIR/inline_generator.rs:15:5: 15:41
++         discriminant(_4) = 0;            // scope 2 at $DIR/inline_generator.rs:15:5: 15:41
+          _3 = &mut _4;                    // scope 0 at $DIR/inline_generator.rs:+1:23: +1:31
+-         _2 = Pin::<&mut [generator@$DIR/inline_generator.rs:15:5: 15:8]>::new(move _3) -> [return: bb2, unwind: bb4]; // scope 0 at $DIR/inline_generator.rs:+1:14: +1:32
 -                                          // mir::Constant
--                                          // + span: $DIR/inline-generator.rs:9:14: 9:22
+-                                          // + span: $DIR/inline_generator.rs:9:14: 9:22
 -                                          // + user_ty: UserType(0)
--                                          // + literal: Const { ty: fn(&mut [generator@$DIR/inline-generator.rs:15:5: 15:8]) -> Pin<&mut [generator@$DIR/inline-generator.rs:15:5: 15:8]> {Pin::<&mut [generator@$DIR/inline-generator.rs:15:5: 15:8]>::new}, val: Value(<ZST>) }
+-                                          // + literal: Const { ty: fn(&mut [generator@$DIR/inline_generator.rs:15:5: 15:8]) -> Pin<&mut [generator@$DIR/inline_generator.rs:15:5: 15:8]> {Pin::<&mut [generator@$DIR/inline_generator.rs:15:5: 15:8]>::new}, val: Value(<ZST>) }
 -     }
 - 
 -     bb2: {
@@ -63,86 +63,86 @@
 +         StorageLive(_6);                 // scope 5 at $SRC_DIR/core/src/pin.rs:LL:COL
 +         _6 = move _5;                    // scope 5 at $SRC_DIR/core/src/pin.rs:LL:COL
 +         Deinit(_2);                      // scope 5 at $SRC_DIR/core/src/pin.rs:LL:COL
-+         (_2.0: &mut [generator@$DIR/inline-generator.rs:15:5: 15:8]) = move _6; // scope 5 at $SRC_DIR/core/src/pin.rs:LL:COL
++         (_2.0: &mut [generator@$DIR/inline_generator.rs:15:5: 15:8]) = move _6; // scope 5 at $SRC_DIR/core/src/pin.rs:LL:COL
 +         StorageDead(_6);                 // scope 5 at $SRC_DIR/core/src/pin.rs:LL:COL
 +         StorageDead(_5);                 // scope 4 at $SRC_DIR/core/src/pin.rs:LL:COL
-          StorageDead(_3);                 // scope 0 at $DIR/inline-generator.rs:+1:31: +1:32
--         _1 = <[generator@$DIR/inline-generator.rs:15:5: 15:8] as Generator<bool>>::resume(move _2, const false) -> [return: bb3, unwind: bb4]; // scope 0 at $DIR/inline-generator.rs:+1:14: +1:46
+          StorageDead(_3);                 // scope 0 at $DIR/inline_generator.rs:+1:31: +1:32
+-         _1 = <[generator@$DIR/inline_generator.rs:15:5: 15:8] as Generator<bool>>::resume(move _2, const false) -> [return: bb3, unwind: bb4]; // scope 0 at $DIR/inline_generator.rs:+1:14: +1:46
 -                                          // mir::Constant
--                                          // + span: $DIR/inline-generator.rs:9:33: 9:39
--                                          // + literal: Const { ty: for<'a> fn(Pin<&'a mut [generator@$DIR/inline-generator.rs:15:5: 15:8]>, bool) -> GeneratorState<<[generator@$DIR/inline-generator.rs:15:5: 15:8] as Generator<bool>>::Yield, <[generator@$DIR/inline-generator.rs:15:5: 15:8] as Generator<bool>>::Return> {<[generator@$DIR/inline-generator.rs:15:5: 15:8] as Generator<bool>>::resume}, val: Value(<ZST>) }
-+         StorageLive(_7);                 // scope 0 at $DIR/inline-generator.rs:+1:14: +1:46
-+         _7 = const false;                // scope 0 at $DIR/inline-generator.rs:+1:14: +1:46
-+         StorageLive(_10);                // scope 0 at $DIR/inline-generator.rs:+1:14: +1:46
-+         StorageLive(_11);                // scope 0 at $DIR/inline-generator.rs:+1:14: +1:46
-+         _13 = deref_copy (_2.0: &mut [generator@$DIR/inline-generator.rs:15:5: 15:8]); // scope 6 at $DIR/inline-generator.rs:15:5: 15:41
-+         _12 = discriminant((*_13));      // scope 6 at $DIR/inline-generator.rs:15:5: 15:41
-+         switchInt(move _12) -> [0_u32: bb3, 1_u32: bb8, 3_u32: bb7, otherwise: bb9]; // scope 6 at $DIR/inline-generator.rs:15:5: 15:41
+-                                          // + span: $DIR/inline_generator.rs:9:33: 9:39
+-                                          // + literal: Const { ty: for<'a> fn(Pin<&'a mut [generator@$DIR/inline_generator.rs:15:5: 15:8]>, bool) -> GeneratorState<<[generator@$DIR/inline_generator.rs:15:5: 15:8] as Generator<bool>>::Yield, <[generator@$DIR/inline_generator.rs:15:5: 15:8] as Generator<bool>>::Return> {<[generator@$DIR/inline_generator.rs:15:5: 15:8] as Generator<bool>>::resume}, val: Value(<ZST>) }
++         StorageLive(_7);                 // scope 0 at $DIR/inline_generator.rs:+1:14: +1:46
++         _7 = const false;                // scope 0 at $DIR/inline_generator.rs:+1:14: +1:46
++         StorageLive(_10);                // scope 0 at $DIR/inline_generator.rs:+1:14: +1:46
++         StorageLive(_11);                // scope 0 at $DIR/inline_generator.rs:+1:14: +1:46
++         _13 = deref_copy (_2.0: &mut [generator@$DIR/inline_generator.rs:15:5: 15:8]); // scope 6 at $DIR/inline_generator.rs:15:5: 15:41
++         _12 = discriminant((*_13));      // scope 6 at $DIR/inline_generator.rs:15:5: 15:41
++         switchInt(move _12) -> [0_u32: bb3, 1_u32: bb8, 3_u32: bb7, otherwise: bb9]; // scope 6 at $DIR/inline_generator.rs:15:5: 15:41
       }
   
 -     bb3: {
 +     bb1: {
-+         StorageDead(_11);                // scope 0 at $DIR/inline-generator.rs:+1:14: +1:46
-+         StorageDead(_10);                // scope 0 at $DIR/inline-generator.rs:+1:14: +1:46
-+         StorageDead(_7);                 // scope 0 at $DIR/inline-generator.rs:+1:14: +1:46
-          StorageDead(_2);                 // scope 0 at $DIR/inline-generator.rs:+1:45: +1:46
-          StorageDead(_4);                 // scope 0 at $DIR/inline-generator.rs:+1:46: +1:47
-          _0 = const ();                   // scope 0 at $DIR/inline-generator.rs:+0:11: +2:2
-          StorageDead(_1);                 // scope 0 at $DIR/inline-generator.rs:+2:1: +2:2
-          return;                          // scope 0 at $DIR/inline-generator.rs:+2:2: +2:2
++         StorageDead(_11);                // scope 0 at $DIR/inline_generator.rs:+1:14: +1:46
++         StorageDead(_10);                // scope 0 at $DIR/inline_generator.rs:+1:14: +1:46
++         StorageDead(_7);                 // scope 0 at $DIR/inline_generator.rs:+1:14: +1:46
+          StorageDead(_2);                 // scope 0 at $DIR/inline_generator.rs:+1:45: +1:46
+          StorageDead(_4);                 // scope 0 at $DIR/inline_generator.rs:+1:46: +1:47
+          _0 = const ();                   // scope 0 at $DIR/inline_generator.rs:+0:11: +2:2
+          StorageDead(_1);                 // scope 0 at $DIR/inline_generator.rs:+2:1: +2:2
+          return;                          // scope 0 at $DIR/inline_generator.rs:+2:2: +2:2
       }
   
 -     bb4 (cleanup): {
 +     bb2 (cleanup): {
-          resume;                          // scope 0 at $DIR/inline-generator.rs:+0:1: +2:2
+          resume;                          // scope 0 at $DIR/inline_generator.rs:+0:1: +2:2
 +     }
 + 
 +     bb3: {
-+         _11 = move _7;                   // scope 6 at $DIR/inline-generator.rs:15:5: 15:41
-+         StorageLive(_8);                 // scope 6 at $DIR/inline-generator.rs:15:17: 15:39
-+         StorageLive(_9);                 // scope 6 at $DIR/inline-generator.rs:15:20: 15:21
-+         _9 = _11;                        // scope 6 at $DIR/inline-generator.rs:15:20: 15:21
-+         switchInt(move _9) -> [false: bb5, otherwise: bb4]; // scope 6 at $DIR/inline-generator.rs:15:20: 15:21
++         _11 = move _7;                   // scope 6 at $DIR/inline_generator.rs:15:5: 15:41
++         StorageLive(_8);                 // scope 6 at $DIR/inline_generator.rs:15:17: 15:39
++         StorageLive(_9);                 // scope 6 at $DIR/inline_generator.rs:15:20: 15:21
++         _9 = _11;                        // scope 6 at $DIR/inline_generator.rs:15:20: 15:21
++         switchInt(move _9) -> [false: bb5, otherwise: bb4]; // scope 6 at $DIR/inline_generator.rs:15:20: 15:21
 +     }
 + 
 +     bb4: {
-+         _8 = const 7_i32;                // scope 6 at $DIR/inline-generator.rs:15:24: 15:25
-+         goto -> bb6;                     // scope 6 at $DIR/inline-generator.rs:15:17: 15:39
++         _8 = const 7_i32;                // scope 6 at $DIR/inline_generator.rs:15:24: 15:25
++         goto -> bb6;                     // scope 6 at $DIR/inline_generator.rs:15:17: 15:39
 +     }
 + 
 +     bb5: {
-+         _8 = const 13_i32;               // scope 6 at $DIR/inline-generator.rs:15:35: 15:37
-+         goto -> bb6;                     // scope 6 at $DIR/inline-generator.rs:15:17: 15:39
++         _8 = const 13_i32;               // scope 6 at $DIR/inline_generator.rs:15:35: 15:37
++         goto -> bb6;                     // scope 6 at $DIR/inline_generator.rs:15:17: 15:39
 +     }
 + 
 +     bb6: {
-+         StorageDead(_9);                 // scope 6 at $DIR/inline-generator.rs:15:38: 15:39
-+         Deinit(_1);                      // scope 6 at $DIR/inline-generator.rs:15:11: 15:39
-+         ((_1 as Yielded).0: i32) = move _8; // scope 6 at $DIR/inline-generator.rs:15:11: 15:39
-+         discriminant(_1) = 0;            // scope 6 at $DIR/inline-generator.rs:15:11: 15:39
-+         _14 = deref_copy (_2.0: &mut [generator@$DIR/inline-generator.rs:15:5: 15:8]); // scope 6 at $DIR/inline-generator.rs:15:11: 15:39
-+         discriminant((*_14)) = 3;        // scope 6 at $DIR/inline-generator.rs:15:11: 15:39
-+         goto -> bb1;                     // scope 0 at $DIR/inline-generator.rs:15:11: 15:39
++         StorageDead(_9);                 // scope 6 at $DIR/inline_generator.rs:15:38: 15:39
++         Deinit(_1);                      // scope 6 at $DIR/inline_generator.rs:15:11: 15:39
++         ((_1 as Yielded).0: i32) = move _8; // scope 6 at $DIR/inline_generator.rs:15:11: 15:39
++         discriminant(_1) = 0;            // scope 6 at $DIR/inline_generator.rs:15:11: 15:39
++         _14 = deref_copy (_2.0: &mut [generator@$DIR/inline_generator.rs:15:5: 15:8]); // scope 6 at $DIR/inline_generator.rs:15:11: 15:39
++         discriminant((*_14)) = 3;        // scope 6 at $DIR/inline_generator.rs:15:11: 15:39
++         goto -> bb1;                     // scope 0 at $DIR/inline_generator.rs:15:11: 15:39
 +     }
 + 
 +     bb7: {
-+         StorageLive(_8);                 // scope 6 at $DIR/inline-generator.rs:15:5: 15:41
-+         _10 = move _7;                   // scope 6 at $DIR/inline-generator.rs:15:5: 15:41
-+         StorageDead(_8);                 // scope 6 at $DIR/inline-generator.rs:15:38: 15:39
-+         Deinit(_1);                      // scope 6 at $DIR/inline-generator.rs:15:41: 15:41
-+         ((_1 as Complete).0: bool) = move _10; // scope 6 at $DIR/inline-generator.rs:15:41: 15:41
-+         discriminant(_1) = 1;            // scope 6 at $DIR/inline-generator.rs:15:41: 15:41
-+         _15 = deref_copy (_2.0: &mut [generator@$DIR/inline-generator.rs:15:5: 15:8]); // scope 6 at $DIR/inline-generator.rs:15:41: 15:41
-+         discriminant((*_15)) = 1;        // scope 6 at $DIR/inline-generator.rs:15:41: 15:41
-+         goto -> bb1;                     // scope 0 at $DIR/inline-generator.rs:15:41: 15:41
++         StorageLive(_8);                 // scope 6 at $DIR/inline_generator.rs:15:5: 15:41
++         _10 = move _7;                   // scope 6 at $DIR/inline_generator.rs:15:5: 15:41
++         StorageDead(_8);                 // scope 6 at $DIR/inline_generator.rs:15:38: 15:39
++         Deinit(_1);                      // scope 6 at $DIR/inline_generator.rs:15:41: 15:41
++         ((_1 as Complete).0: bool) = move _10; // scope 6 at $DIR/inline_generator.rs:15:41: 15:41
++         discriminant(_1) = 1;            // scope 6 at $DIR/inline_generator.rs:15:41: 15:41
++         _15 = deref_copy (_2.0: &mut [generator@$DIR/inline_generator.rs:15:5: 15:8]); // scope 6 at $DIR/inline_generator.rs:15:41: 15:41
++         discriminant((*_15)) = 1;        // scope 6 at $DIR/inline_generator.rs:15:41: 15:41
++         goto -> bb1;                     // scope 0 at $DIR/inline_generator.rs:15:41: 15:41
 +     }
 + 
 +     bb8: {
-+         assert(const false, "generator resumed after completion") -> [success: bb8, unwind: bb2]; // scope 6 at $DIR/inline-generator.rs:15:5: 15:41
++         assert(const false, "generator resumed after completion") -> [success: bb8, unwind: bb2]; // scope 6 at $DIR/inline_generator.rs:15:5: 15:41
 +     }
 + 
 +     bb9: {
-+         unreachable;                     // scope 6 at $DIR/inline-generator.rs:15:5: 15:41
++         unreachable;                     // scope 6 at $DIR/inline_generator.rs:15:5: 15:41
       }
   }
   
diff --git a/src/test/mir-opt/inline/inline-generator.rs b/src/test/mir-opt/inline/inline_generator.rs
similarity index 100%
rename from src/test/mir-opt/inline/inline-generator.rs
rename to src/test/mir-opt/inline/inline_generator.rs
diff --git a/src/test/mir-opt/inline/inline_instruction_set.default.Inline.diff b/src/test/mir-opt/inline/inline_instruction_set.default.Inline.diff
index 076509df34949..e421428dcdff5 100644
--- a/src/test/mir-opt/inline/inline_instruction_set.default.Inline.diff
+++ b/src/test/mir-opt/inline/inline_instruction_set.default.Inline.diff
@@ -2,43 +2,43 @@
 + // MIR for `default` after Inline
   
   fn default() -> () {
-      let mut _0: ();                      // return place in scope 0 at $DIR/inline-instruction-set.rs:+0:18: +0:18
-      let _1: ();                          // in scope 0 at $DIR/inline-instruction-set.rs:+1:5: +1:26
-      let _2: ();                          // in scope 0 at $DIR/inline-instruction-set.rs:+2:5: +2:26
-      let _3: ();                          // in scope 0 at $DIR/inline-instruction-set.rs:+3:5: +3:30
-+     scope 1 (inlined instruction_set_default) { // at $DIR/inline-instruction-set.rs:53:5: 53:30
+      let mut _0: ();                      // return place in scope 0 at $DIR/inline_instruction_set.rs:+0:18: +0:18
+      let _1: ();                          // in scope 0 at $DIR/inline_instruction_set.rs:+1:5: +1:26
+      let _2: ();                          // in scope 0 at $DIR/inline_instruction_set.rs:+2:5: +2:26
+      let _3: ();                          // in scope 0 at $DIR/inline_instruction_set.rs:+3:5: +3:30
++     scope 1 (inlined instruction_set_default) { // at $DIR/inline_instruction_set.rs:53:5: 53:30
 +     }
   
       bb0: {
-          StorageLive(_1);                 // scope 0 at $DIR/inline-instruction-set.rs:+1:5: +1:26
-          _1 = instruction_set_a32() -> bb1; // scope 0 at $DIR/inline-instruction-set.rs:+1:5: +1:26
+          StorageLive(_1);                 // scope 0 at $DIR/inline_instruction_set.rs:+1:5: +1:26
+          _1 = instruction_set_a32() -> bb1; // scope 0 at $DIR/inline_instruction_set.rs:+1:5: +1:26
                                            // mir::Constant
-                                           // + span: $DIR/inline-instruction-set.rs:51:5: 51:24
+                                           // + span: $DIR/inline_instruction_set.rs:51:5: 51:24
                                            // + literal: Const { ty: fn() {instruction_set_a32}, val: Value(<ZST>) }
       }
   
       bb1: {
-          StorageDead(_1);                 // scope 0 at $DIR/inline-instruction-set.rs:+1:26: +1:27
-          StorageLive(_2);                 // scope 0 at $DIR/inline-instruction-set.rs:+2:5: +2:26
-          _2 = instruction_set_t32() -> bb2; // scope 0 at $DIR/inline-instruction-set.rs:+2:5: +2:26
+          StorageDead(_1);                 // scope 0 at $DIR/inline_instruction_set.rs:+1:26: +1:27
+          StorageLive(_2);                 // scope 0 at $DIR/inline_instruction_set.rs:+2:5: +2:26
+          _2 = instruction_set_t32() -> bb2; // scope 0 at $DIR/inline_instruction_set.rs:+2:5: +2:26
                                            // mir::Constant
-                                           // + span: $DIR/inline-instruction-set.rs:52:5: 52:24
+                                           // + span: $DIR/inline_instruction_set.rs:52:5: 52:24
                                            // + literal: Const { ty: fn() {instruction_set_t32}, val: Value(<ZST>) }
       }
   
       bb2: {
-          StorageDead(_2);                 // scope 0 at $DIR/inline-instruction-set.rs:+2:26: +2:27
-          StorageLive(_3);                 // scope 0 at $DIR/inline-instruction-set.rs:+3:5: +3:30
--         _3 = instruction_set_default() -> bb3; // scope 0 at $DIR/inline-instruction-set.rs:+3:5: +3:30
+          StorageDead(_2);                 // scope 0 at $DIR/inline_instruction_set.rs:+2:26: +2:27
+          StorageLive(_3);                 // scope 0 at $DIR/inline_instruction_set.rs:+3:5: +3:30
+-         _3 = instruction_set_default() -> bb3; // scope 0 at $DIR/inline_instruction_set.rs:+3:5: +3:30
 -                                          // mir::Constant
--                                          // + span: $DIR/inline-instruction-set.rs:53:5: 53:28
+-                                          // + span: $DIR/inline_instruction_set.rs:53:5: 53:28
 -                                          // + literal: Const { ty: fn() {instruction_set_default}, val: Value(<ZST>) }
 -     }
 - 
 -     bb3: {
-          StorageDead(_3);                 // scope 0 at $DIR/inline-instruction-set.rs:+3:30: +3:31
-          _0 = const ();                   // scope 0 at $DIR/inline-instruction-set.rs:+0:18: +4:2
-          return;                          // scope 0 at $DIR/inline-instruction-set.rs:+4:2: +4:2
+          StorageDead(_3);                 // scope 0 at $DIR/inline_instruction_set.rs:+3:30: +3:31
+          _0 = const ();                   // scope 0 at $DIR/inline_instruction_set.rs:+0:18: +4:2
+          return;                          // scope 0 at $DIR/inline_instruction_set.rs:+4:2: +4:2
       }
   }
   
diff --git a/src/test/mir-opt/inline/inline-instruction-set.rs b/src/test/mir-opt/inline/inline_instruction_set.rs
similarity index 100%
rename from src/test/mir-opt/inline/inline-instruction-set.rs
rename to src/test/mir-opt/inline/inline_instruction_set.rs
diff --git a/src/test/mir-opt/inline/inline_instruction_set.t32.Inline.diff b/src/test/mir-opt/inline/inline_instruction_set.t32.Inline.diff
index b275d08e05f92..1ea2b87e53acd 100644
--- a/src/test/mir-opt/inline/inline_instruction_set.t32.Inline.diff
+++ b/src/test/mir-opt/inline/inline_instruction_set.t32.Inline.diff
@@ -2,45 +2,45 @@
 + // MIR for `t32` after Inline
   
   fn t32() -> () {
-      let mut _0: ();                      // return place in scope 0 at $DIR/inline-instruction-set.rs:+0:14: +0:14
-      let _1: ();                          // in scope 0 at $DIR/inline-instruction-set.rs:+1:5: +1:26
-      let _2: ();                          // in scope 0 at $DIR/inline-instruction-set.rs:+2:5: +2:26
-      let _3: ();                          // in scope 0 at $DIR/inline-instruction-set.rs:+5:5: +5:30
-+     scope 1 (inlined instruction_set_t32) { // at $DIR/inline-instruction-set.rs:43:5: 43:26
+      let mut _0: ();                      // return place in scope 0 at $DIR/inline_instruction_set.rs:+0:14: +0:14
+      let _1: ();                          // in scope 0 at $DIR/inline_instruction_set.rs:+1:5: +1:26
+      let _2: ();                          // in scope 0 at $DIR/inline_instruction_set.rs:+2:5: +2:26
+      let _3: ();                          // in scope 0 at $DIR/inline_instruction_set.rs:+5:5: +5:30
++     scope 1 (inlined instruction_set_t32) { // at $DIR/inline_instruction_set.rs:43:5: 43:26
 +     }
   
       bb0: {
-          StorageLive(_1);                 // scope 0 at $DIR/inline-instruction-set.rs:+1:5: +1:26
-          _1 = instruction_set_a32() -> bb1; // scope 0 at $DIR/inline-instruction-set.rs:+1:5: +1:26
+          StorageLive(_1);                 // scope 0 at $DIR/inline_instruction_set.rs:+1:5: +1:26
+          _1 = instruction_set_a32() -> bb1; // scope 0 at $DIR/inline_instruction_set.rs:+1:5: +1:26
                                            // mir::Constant
-                                           // + span: $DIR/inline-instruction-set.rs:42:5: 42:24
+                                           // + span: $DIR/inline_instruction_set.rs:42:5: 42:24
                                            // + literal: Const { ty: fn() {instruction_set_a32}, val: Value(<ZST>) }
       }
   
       bb1: {
-          StorageDead(_1);                 // scope 0 at $DIR/inline-instruction-set.rs:+1:26: +1:27
-          StorageLive(_2);                 // scope 0 at $DIR/inline-instruction-set.rs:+2:5: +2:26
--         _2 = instruction_set_t32() -> bb2; // scope 0 at $DIR/inline-instruction-set.rs:+2:5: +2:26
+          StorageDead(_1);                 // scope 0 at $DIR/inline_instruction_set.rs:+1:26: +1:27
+          StorageLive(_2);                 // scope 0 at $DIR/inline_instruction_set.rs:+2:5: +2:26
+-         _2 = instruction_set_t32() -> bb2; // scope 0 at $DIR/inline_instruction_set.rs:+2:5: +2:26
 -                                          // mir::Constant
--                                          // + span: $DIR/inline-instruction-set.rs:43:5: 43:24
+-                                          // + span: $DIR/inline_instruction_set.rs:43:5: 43:24
 -                                          // + literal: Const { ty: fn() {instruction_set_t32}, val: Value(<ZST>) }
 -     }
 - 
 -     bb2: {
-          StorageDead(_2);                 // scope 0 at $DIR/inline-instruction-set.rs:+2:26: +2:27
-          StorageLive(_3);                 // scope 0 at $DIR/inline-instruction-set.rs:+5:5: +5:30
--         _3 = instruction_set_default() -> bb3; // scope 0 at $DIR/inline-instruction-set.rs:+5:5: +5:30
-+         _3 = instruction_set_default() -> bb2; // scope 0 at $DIR/inline-instruction-set.rs:+5:5: +5:30
+          StorageDead(_2);                 // scope 0 at $DIR/inline_instruction_set.rs:+2:26: +2:27
+          StorageLive(_3);                 // scope 0 at $DIR/inline_instruction_set.rs:+5:5: +5:30
+-         _3 = instruction_set_default() -> bb3; // scope 0 at $DIR/inline_instruction_set.rs:+5:5: +5:30
++         _3 = instruction_set_default() -> bb2; // scope 0 at $DIR/inline_instruction_set.rs:+5:5: +5:30
                                            // mir::Constant
-                                           // + span: $DIR/inline-instruction-set.rs:46:5: 46:28
+                                           // + span: $DIR/inline_instruction_set.rs:46:5: 46:28
                                            // + literal: Const { ty: fn() {instruction_set_default}, val: Value(<ZST>) }
       }
   
 -     bb3: {
 +     bb2: {
-          StorageDead(_3);                 // scope 0 at $DIR/inline-instruction-set.rs:+5:30: +5:31
-          _0 = const ();                   // scope 0 at $DIR/inline-instruction-set.rs:+0:14: +6:2
-          return;                          // scope 0 at $DIR/inline-instruction-set.rs:+6:2: +6:2
+          StorageDead(_3);                 // scope 0 at $DIR/inline_instruction_set.rs:+5:30: +5:31
+          _0 = const ();                   // scope 0 at $DIR/inline_instruction_set.rs:+0:14: +6:2
+          return;                          // scope 0 at $DIR/inline_instruction_set.rs:+6:2: +6:2
       }
   }
   
diff --git a/src/test/mir-opt/inline/inline_into_box_place.main.Inline.diff b/src/test/mir-opt/inline/inline_into_box_place.main.Inline.diff
index 7e017373b4410..2a4dc9e3e8099 100644
--- a/src/test/mir-opt/inline/inline_into_box_place.main.Inline.diff
+++ b/src/test/mir-opt/inline/inline_into_box_place.main.Inline.diff
@@ -2,45 +2,45 @@
 + // MIR for `main` after Inline
   
   fn main() -> () {
-      let mut _0: ();                      // return place in scope 0 at $DIR/inline-into-box-place.rs:+0:11: +0:11
-      let _1: std::boxed::Box<std::vec::Vec<u32>>; // in scope 0 at $DIR/inline-into-box-place.rs:+1:9: +1:11
-      let mut _2: usize;                   // in scope 0 at $DIR/inline-into-box-place.rs:+1:29: +1:43
-      let mut _3: usize;                   // in scope 0 at $DIR/inline-into-box-place.rs:+1:29: +1:43
-      let mut _4: *mut u8;                 // in scope 0 at $DIR/inline-into-box-place.rs:+1:29: +1:43
-      let mut _5: std::boxed::Box<std::vec::Vec<u32>>; // in scope 0 at $DIR/inline-into-box-place.rs:+1:29: +1:43
-      let mut _6: ();                      // in scope 0 at $DIR/inline-into-box-place.rs:+1:42: +1:43
-      let mut _7: *const std::vec::Vec<u32>; // in scope 0 at $DIR/inline-into-box-place.rs:+1:29: +1:43
-+     let mut _8: &mut std::vec::Vec<u32>; // in scope 0 at $DIR/inline-into-box-place.rs:+1:33: +1:43
+      let mut _0: ();                      // return place in scope 0 at $DIR/inline_into_box_place.rs:+0:11: +0:11
+      let _1: std::boxed::Box<std::vec::Vec<u32>>; // in scope 0 at $DIR/inline_into_box_place.rs:+1:9: +1:11
+      let mut _2: usize;                   // in scope 0 at $DIR/inline_into_box_place.rs:+1:29: +1:43
+      let mut _3: usize;                   // in scope 0 at $DIR/inline_into_box_place.rs:+1:29: +1:43
+      let mut _4: *mut u8;                 // in scope 0 at $DIR/inline_into_box_place.rs:+1:29: +1:43
+      let mut _5: std::boxed::Box<std::vec::Vec<u32>>; // in scope 0 at $DIR/inline_into_box_place.rs:+1:29: +1:43
+      let mut _6: ();                      // in scope 0 at $DIR/inline_into_box_place.rs:+1:42: +1:43
+      let mut _7: *const std::vec::Vec<u32>; // in scope 0 at $DIR/inline_into_box_place.rs:+1:29: +1:43
++     let mut _8: &mut std::vec::Vec<u32>; // in scope 0 at $DIR/inline_into_box_place.rs:+1:33: +1:43
       scope 1 {
-          debug _x => _1;                  // in scope 1 at $DIR/inline-into-box-place.rs:+1:9: +1:11
+          debug _x => _1;                  // in scope 1 at $DIR/inline_into_box_place.rs:+1:9: +1:11
       }
       scope 2 {
       }
-+     scope 3 (inlined Vec::<u32>::new) {  // at $DIR/inline-into-box-place.rs:8:33: 8:43
++     scope 3 (inlined Vec::<u32>::new) {  // at $DIR/inline_into_box_place.rs:8:33: 8:43
 +         let mut _9: alloc::raw_vec::RawVec<u32>; // in scope 3 at $SRC_DIR/alloc/src/vec/mod.rs:LL:COL
 +     }
   
       bb0: {
-          StorageLive(_1);                 // scope 0 at $DIR/inline-into-box-place.rs:+1:9: +1:11
-          _2 = SizeOf(std::vec::Vec<u32>); // scope 2 at $DIR/inline-into-box-place.rs:+1:29: +1:43
-          _3 = AlignOf(std::vec::Vec<u32>); // scope 2 at $DIR/inline-into-box-place.rs:+1:29: +1:43
-          _4 = alloc::alloc::exchange_malloc(move _2, move _3) -> bb1; // scope 2 at $DIR/inline-into-box-place.rs:+1:29: +1:43
+          StorageLive(_1);                 // scope 0 at $DIR/inline_into_box_place.rs:+1:9: +1:11
+          _2 = SizeOf(std::vec::Vec<u32>); // scope 2 at $DIR/inline_into_box_place.rs:+1:29: +1:43
+          _3 = AlignOf(std::vec::Vec<u32>); // scope 2 at $DIR/inline_into_box_place.rs:+1:29: +1:43
+          _4 = alloc::alloc::exchange_malloc(move _2, move _3) -> bb1; // scope 2 at $DIR/inline_into_box_place.rs:+1:29: +1:43
                                            // mir::Constant
-                                           // + span: $DIR/inline-into-box-place.rs:8:29: 8:43
+                                           // + span: $DIR/inline_into_box_place.rs:8:29: 8:43
                                            // + literal: Const { ty: unsafe fn(usize, usize) -> *mut u8 {alloc::alloc::exchange_malloc}, val: Value(<ZST>) }
       }
   
       bb1: {
-          StorageLive(_5);                 // scope 0 at $DIR/inline-into-box-place.rs:+1:29: +1:43
-          _5 = ShallowInitBox(move _4, std::vec::Vec<u32>); // scope 0 at $DIR/inline-into-box-place.rs:+1:29: +1:43
-          _7 = (((_5.0: std::ptr::Unique<std::vec::Vec<u32>>).0: std::ptr::NonNull<std::vec::Vec<u32>>).0: *const std::vec::Vec<u32>); // scope 0 at $DIR/inline-into-box-place.rs:+1:33: +1:43
--         (*_7) = Vec::<u32>::new() -> [return: bb2, unwind: bb5]; // scope 0 at $DIR/inline-into-box-place.rs:+1:33: +1:43
-+         StorageLive(_8);                 // scope 0 at $DIR/inline-into-box-place.rs:+1:33: +1:43
-+         _8 = &mut (*_7);                 // scope 0 at $DIR/inline-into-box-place.rs:+1:33: +1:43
+          StorageLive(_5);                 // scope 0 at $DIR/inline_into_box_place.rs:+1:29: +1:43
+          _5 = ShallowInitBox(move _4, std::vec::Vec<u32>); // scope 0 at $DIR/inline_into_box_place.rs:+1:29: +1:43
+          _7 = (((_5.0: std::ptr::Unique<std::vec::Vec<u32>>).0: std::ptr::NonNull<std::vec::Vec<u32>>).0: *const std::vec::Vec<u32>); // scope 0 at $DIR/inline_into_box_place.rs:+1:33: +1:43
+-         (*_7) = Vec::<u32>::new() -> [return: bb2, unwind: bb5]; // scope 0 at $DIR/inline_into_box_place.rs:+1:33: +1:43
++         StorageLive(_8);                 // scope 0 at $DIR/inline_into_box_place.rs:+1:33: +1:43
++         _8 = &mut (*_7);                 // scope 0 at $DIR/inline_into_box_place.rs:+1:33: +1:43
 +         StorageLive(_9);                 // scope 3 at $SRC_DIR/alloc/src/vec/mod.rs:LL:COL
 +         _9 = const _;                    // scope 3 at $SRC_DIR/alloc/src/vec/mod.rs:LL:COL
                                            // mir::Constant
--                                          // + span: $DIR/inline-into-box-place.rs:8:33: 8:41
+-                                          // + span: $DIR/inline_into_box_place.rs:8:33: 8:41
 -                                          // + user_ty: UserType(1)
 -                                          // + literal: Const { ty: fn() -> Vec<u32> {Vec::<u32>::new}, val: Value(<ZST>) }
 -     }
@@ -53,29 +53,29 @@
 +         ((*_8).0: alloc::raw_vec::RawVec<u32>) = move _9; // scope 3 at $SRC_DIR/alloc/src/vec/mod.rs:LL:COL
 +         ((*_8).1: usize) = const 0_usize; // scope 3 at $SRC_DIR/alloc/src/vec/mod.rs:LL:COL
 +         StorageDead(_9);                 // scope 3 at $SRC_DIR/alloc/src/vec/mod.rs:LL:COL
-+         StorageDead(_8);                 // scope 0 at $DIR/inline-into-box-place.rs:+1:33: +1:43
-          _1 = move _5;                    // scope 0 at $DIR/inline-into-box-place.rs:+1:29: +1:43
-          StorageDead(_5);                 // scope 0 at $DIR/inline-into-box-place.rs:+1:42: +1:43
-          _0 = const ();                   // scope 0 at $DIR/inline-into-box-place.rs:+0:11: +2:2
--         drop(_1) -> [return: bb3, unwind: bb4]; // scope 0 at $DIR/inline-into-box-place.rs:+2:1: +2:2
-+         drop(_1) -> [return: bb2, unwind: bb3]; // scope 0 at $DIR/inline-into-box-place.rs:+2:1: +2:2
++         StorageDead(_8);                 // scope 0 at $DIR/inline_into_box_place.rs:+1:33: +1:43
+          _1 = move _5;                    // scope 0 at $DIR/inline_into_box_place.rs:+1:29: +1:43
+          StorageDead(_5);                 // scope 0 at $DIR/inline_into_box_place.rs:+1:42: +1:43
+          _0 = const ();                   // scope 0 at $DIR/inline_into_box_place.rs:+0:11: +2:2
+-         drop(_1) -> [return: bb3, unwind: bb4]; // scope 0 at $DIR/inline_into_box_place.rs:+2:1: +2:2
++         drop(_1) -> [return: bb2, unwind: bb3]; // scope 0 at $DIR/inline_into_box_place.rs:+2:1: +2:2
       }
   
 -     bb3: {
 +     bb2: {
-          StorageDead(_1);                 // scope 0 at $DIR/inline-into-box-place.rs:+2:1: +2:2
-          return;                          // scope 0 at $DIR/inline-into-box-place.rs:+2:2: +2:2
+          StorageDead(_1);                 // scope 0 at $DIR/inline_into_box_place.rs:+2:1: +2:2
+          return;                          // scope 0 at $DIR/inline_into_box_place.rs:+2:2: +2:2
       }
   
 -     bb4 (cleanup): {
 +     bb3 (cleanup): {
-          resume;                          // scope 0 at $DIR/inline-into-box-place.rs:+0:1: +2:2
+          resume;                          // scope 0 at $DIR/inline_into_box_place.rs:+0:1: +2:2
 -     }
 - 
 -     bb5 (cleanup): {
--         _6 = alloc::alloc::box_free::<Vec<u32>, std::alloc::Global>(move (_5.0: std::ptr::Unique<std::vec::Vec<u32>>), move (_5.1: std::alloc::Global)) -> bb4; // scope 0 at $DIR/inline-into-box-place.rs:+1:42: +1:43
+-         _6 = alloc::alloc::box_free::<Vec<u32>, std::alloc::Global>(move (_5.0: std::ptr::Unique<std::vec::Vec<u32>>), move (_5.1: std::alloc::Global)) -> bb4; // scope 0 at $DIR/inline_into_box_place.rs:+1:42: +1:43
 -                                          // mir::Constant
--                                          // + span: $DIR/inline-into-box-place.rs:8:42: 8:43
+-                                          // + span: $DIR/inline_into_box_place.rs:8:42: 8:43
 -                                          // + literal: Const { ty: unsafe fn(Unique<Vec<u32>>, std::alloc::Global) {alloc::alloc::box_free::<Vec<u32>, std::alloc::Global>}, val: Value(<ZST>) }
       }
   }
diff --git a/src/test/mir-opt/inline/inline-into-box-place.rs b/src/test/mir-opt/inline/inline_into_box_place.rs
similarity index 100%
rename from src/test/mir-opt/inline/inline-into-box-place.rs
rename to src/test/mir-opt/inline/inline_into_box_place.rs
diff --git a/src/test/mir-opt/inline/inline_options.main.Inline.after.mir b/src/test/mir-opt/inline/inline_options.main.Inline.after.mir
index 361b02715266f..1c590be945c9e 100644
--- a/src/test/mir-opt/inline/inline_options.main.Inline.after.mir
+++ b/src/test/mir-opt/inline/inline_options.main.Inline.after.mir
@@ -1,55 +1,55 @@
 // MIR for `main` after Inline
 
 fn main() -> () {
-    let mut _0: ();                      // return place in scope 0 at $DIR/inline-options.rs:+0:11: +0:11
-    let _1: ();                          // in scope 0 at $DIR/inline-options.rs:+1:5: +1:18
-    let _2: ();                          // in scope 0 at $DIR/inline-options.rs:+2:5: +2:21
-    scope 1 (inlined inlined::<u32>) {   // at $DIR/inline-options.rs:10:5: 10:21
-        let _3: ();                      // in scope 1 at $DIR/inline-options.rs:16:23: 16:26
-        let _4: ();                      // in scope 1 at $DIR/inline-options.rs:16:28: 16:31
-        let _5: ();                      // in scope 1 at $DIR/inline-options.rs:16:33: 16:36
+    let mut _0: ();                      // return place in scope 0 at $DIR/inline_options.rs:+0:11: +0:11
+    let _1: ();                          // in scope 0 at $DIR/inline_options.rs:+1:5: +1:18
+    let _2: ();                          // in scope 0 at $DIR/inline_options.rs:+2:5: +2:21
+    scope 1 (inlined inlined::<u32>) {   // at $DIR/inline_options.rs:10:5: 10:21
+        let _3: ();                      // in scope 1 at $DIR/inline_options.rs:16:23: 16:26
+        let _4: ();                      // in scope 1 at $DIR/inline_options.rs:16:28: 16:31
+        let _5: ();                      // in scope 1 at $DIR/inline_options.rs:16:33: 16:36
     }
 
     bb0: {
-        StorageLive(_1);                 // scope 0 at $DIR/inline-options.rs:+1:5: +1:18
-        _1 = not_inlined() -> bb1;       // scope 0 at $DIR/inline-options.rs:+1:5: +1:18
+        StorageLive(_1);                 // scope 0 at $DIR/inline_options.rs:+1:5: +1:18
+        _1 = not_inlined() -> bb1;       // scope 0 at $DIR/inline_options.rs:+1:5: +1:18
                                          // mir::Constant
-                                         // + span: $DIR/inline-options.rs:9:5: 9:16
+                                         // + span: $DIR/inline_options.rs:9:5: 9:16
                                          // + literal: Const { ty: fn() {not_inlined}, val: Value(<ZST>) }
     }
 
     bb1: {
-        StorageDead(_1);                 // scope 0 at $DIR/inline-options.rs:+1:18: +1:19
-        StorageLive(_2);                 // scope 0 at $DIR/inline-options.rs:+2:5: +2:21
-        StorageLive(_3);                 // scope 1 at $DIR/inline-options.rs:16:23: 16:26
-        _3 = g() -> bb2;                 // scope 1 at $DIR/inline-options.rs:16:23: 16:26
+        StorageDead(_1);                 // scope 0 at $DIR/inline_options.rs:+1:18: +1:19
+        StorageLive(_2);                 // scope 0 at $DIR/inline_options.rs:+2:5: +2:21
+        StorageLive(_3);                 // scope 1 at $DIR/inline_options.rs:16:23: 16:26
+        _3 = g() -> bb2;                 // scope 1 at $DIR/inline_options.rs:16:23: 16:26
                                          // mir::Constant
-                                         // + span: $DIR/inline-options.rs:16:23: 16:24
+                                         // + span: $DIR/inline_options.rs:16:23: 16:24
                                          // + literal: Const { ty: fn() {g}, val: Value(<ZST>) }
     }
 
     bb2: {
-        StorageDead(_3);                 // scope 1 at $DIR/inline-options.rs:16:26: 16:27
-        StorageLive(_4);                 // scope 1 at $DIR/inline-options.rs:16:28: 16:31
-        _4 = g() -> bb3;                 // scope 1 at $DIR/inline-options.rs:16:28: 16:31
+        StorageDead(_3);                 // scope 1 at $DIR/inline_options.rs:16:26: 16:27
+        StorageLive(_4);                 // scope 1 at $DIR/inline_options.rs:16:28: 16:31
+        _4 = g() -> bb3;                 // scope 1 at $DIR/inline_options.rs:16:28: 16:31
                                          // mir::Constant
-                                         // + span: $DIR/inline-options.rs:16:28: 16:29
+                                         // + span: $DIR/inline_options.rs:16:28: 16:29
                                          // + literal: Const { ty: fn() {g}, val: Value(<ZST>) }
     }
 
     bb3: {
-        StorageDead(_4);                 // scope 1 at $DIR/inline-options.rs:16:31: 16:32
-        StorageLive(_5);                 // scope 1 at $DIR/inline-options.rs:16:33: 16:36
-        _5 = g() -> bb4;                 // scope 1 at $DIR/inline-options.rs:16:33: 16:36
+        StorageDead(_4);                 // scope 1 at $DIR/inline_options.rs:16:31: 16:32
+        StorageLive(_5);                 // scope 1 at $DIR/inline_options.rs:16:33: 16:36
+        _5 = g() -> bb4;                 // scope 1 at $DIR/inline_options.rs:16:33: 16:36
                                          // mir::Constant
-                                         // + span: $DIR/inline-options.rs:16:33: 16:34
+                                         // + span: $DIR/inline_options.rs:16:33: 16:34
                                          // + literal: Const { ty: fn() {g}, val: Value(<ZST>) }
     }
 
     bb4: {
-        StorageDead(_5);                 // scope 1 at $DIR/inline-options.rs:16:36: 16:37
-        StorageDead(_2);                 // scope 0 at $DIR/inline-options.rs:+2:21: +2:22
-        _0 = const ();                   // scope 0 at $DIR/inline-options.rs:+0:11: +3:2
-        return;                          // scope 0 at $DIR/inline-options.rs:+3:2: +3:2
+        StorageDead(_5);                 // scope 1 at $DIR/inline_options.rs:16:36: 16:37
+        StorageDead(_2);                 // scope 0 at $DIR/inline_options.rs:+2:21: +2:22
+        _0 = const ();                   // scope 0 at $DIR/inline_options.rs:+0:11: +3:2
+        return;                          // scope 0 at $DIR/inline_options.rs:+3:2: +3:2
     }
 }
diff --git a/src/test/mir-opt/inline/inline-options.rs b/src/test/mir-opt/inline/inline_options.rs
similarity index 100%
rename from src/test/mir-opt/inline/inline-options.rs
rename to src/test/mir-opt/inline/inline_options.rs
diff --git a/src/test/mir-opt/inline/inline_retag.bar.Inline.after.mir b/src/test/mir-opt/inline/inline_retag.bar.Inline.after.mir
index 169e7f5c5d936..75af20d482ddd 100644
--- a/src/test/mir-opt/inline/inline_retag.bar.Inline.after.mir
+++ b/src/test/mir-opt/inline/inline_retag.bar.Inline.after.mir
@@ -1,72 +1,72 @@
 // MIR for `bar` after Inline
 
 fn bar() -> bool {
-    let mut _0: bool;                    // return place in scope 0 at $DIR/inline-retag.rs:+0:13: +0:17
-    let _1: for<'a, 'b> fn(&'a i32, &'b i32) -> bool {foo}; // in scope 0 at $DIR/inline-retag.rs:+1:9: +1:10
-    let mut _2: for<'a, 'b> fn(&'a i32, &'b i32) -> bool {foo}; // in scope 0 at $DIR/inline-retag.rs:+2:5: +2:6
-    let mut _3: &i32;                    // in scope 0 at $DIR/inline-retag.rs:+2:7: +2:9
-    let _4: &i32;                        // in scope 0 at $DIR/inline-retag.rs:+2:7: +2:9
-    let _5: i32;                         // in scope 0 at $DIR/inline-retag.rs:+2:8: +2:9
-    let mut _6: &i32;                    // in scope 0 at $DIR/inline-retag.rs:+2:11: +2:14
-    let _7: &i32;                        // in scope 0 at $DIR/inline-retag.rs:+2:11: +2:14
-    let _8: i32;                         // in scope 0 at $DIR/inline-retag.rs:+2:12: +2:14
+    let mut _0: bool;                    // return place in scope 0 at $DIR/inline_retag.rs:+0:13: +0:17
+    let _1: for<'a, 'b> fn(&'a i32, &'b i32) -> bool {foo}; // in scope 0 at $DIR/inline_retag.rs:+1:9: +1:10
+    let mut _2: for<'a, 'b> fn(&'a i32, &'b i32) -> bool {foo}; // in scope 0 at $DIR/inline_retag.rs:+2:5: +2:6
+    let mut _3: &i32;                    // in scope 0 at $DIR/inline_retag.rs:+2:7: +2:9
+    let _4: &i32;                        // in scope 0 at $DIR/inline_retag.rs:+2:7: +2:9
+    let _5: i32;                         // in scope 0 at $DIR/inline_retag.rs:+2:8: +2:9
+    let mut _6: &i32;                    // in scope 0 at $DIR/inline_retag.rs:+2:11: +2:14
+    let _7: &i32;                        // in scope 0 at $DIR/inline_retag.rs:+2:11: +2:14
+    let _8: i32;                         // in scope 0 at $DIR/inline_retag.rs:+2:12: +2:14
     scope 1 {
-        debug f => _1;                   // in scope 1 at $DIR/inline-retag.rs:+1:9: +1:10
-        let mut _9: &i32;                // in scope 1 at $DIR/inline-retag.rs:+2:11: +2:14
-        let mut _10: &i32;               // in scope 1 at $DIR/inline-retag.rs:+2:7: +2:9
-        scope 2 (inlined foo) {          // at $DIR/inline-retag.rs:12:5: 12:15
-            debug x => _3;               // in scope 2 at $DIR/inline-retag.rs:16:8: 16:9
-            debug y => _6;               // in scope 2 at $DIR/inline-retag.rs:16:17: 16:18
-            let mut _11: i32;            // in scope 2 at $DIR/inline-retag.rs:17:5: 17:7
-            let mut _12: i32;            // in scope 2 at $DIR/inline-retag.rs:17:11: 17:13
+        debug f => _1;                   // in scope 1 at $DIR/inline_retag.rs:+1:9: +1:10
+        let mut _9: &i32;                // in scope 1 at $DIR/inline_retag.rs:+2:11: +2:14
+        let mut _10: &i32;               // in scope 1 at $DIR/inline_retag.rs:+2:7: +2:9
+        scope 2 (inlined foo) {          // at $DIR/inline_retag.rs:12:5: 12:15
+            debug x => _3;               // in scope 2 at $DIR/inline_retag.rs:16:8: 16:9
+            debug y => _6;               // in scope 2 at $DIR/inline_retag.rs:16:17: 16:18
+            let mut _11: i32;            // in scope 2 at $DIR/inline_retag.rs:17:5: 17:7
+            let mut _12: i32;            // in scope 2 at $DIR/inline_retag.rs:17:11: 17:13
         }
     }
 
     bb0: {
-        StorageLive(_1);                 // scope 0 at $DIR/inline-retag.rs:+1:9: +1:10
-        _1 = foo;                        // scope 0 at $DIR/inline-retag.rs:+1:13: +1:16
+        StorageLive(_1);                 // scope 0 at $DIR/inline_retag.rs:+1:9: +1:10
+        _1 = foo;                        // scope 0 at $DIR/inline_retag.rs:+1:13: +1:16
                                          // mir::Constant
-                                         // + span: $DIR/inline-retag.rs:11:13: 11:16
+                                         // + span: $DIR/inline_retag.rs:11:13: 11:16
                                          // + literal: Const { ty: for<'a, 'b> fn(&'a i32, &'b i32) -> bool {foo}, val: Value(<ZST>) }
-        StorageLive(_2);                 // scope 1 at $DIR/inline-retag.rs:+2:5: +2:6
-        _2 = _1;                         // scope 1 at $DIR/inline-retag.rs:+2:5: +2:6
-        StorageLive(_3);                 // scope 1 at $DIR/inline-retag.rs:+2:7: +2:9
-        StorageLive(_4);                 // scope 1 at $DIR/inline-retag.rs:+2:7: +2:9
-        _10 = const _;                   // scope 1 at $DIR/inline-retag.rs:+2:7: +2:9
+        StorageLive(_2);                 // scope 1 at $DIR/inline_retag.rs:+2:5: +2:6
+        _2 = _1;                         // scope 1 at $DIR/inline_retag.rs:+2:5: +2:6
+        StorageLive(_3);                 // scope 1 at $DIR/inline_retag.rs:+2:7: +2:9
+        StorageLive(_4);                 // scope 1 at $DIR/inline_retag.rs:+2:7: +2:9
+        _10 = const _;                   // scope 1 at $DIR/inline_retag.rs:+2:7: +2:9
                                          // mir::Constant
-                                         // + span: $DIR/inline-retag.rs:12:7: 12:9
+                                         // + span: $DIR/inline_retag.rs:12:7: 12:9
                                          // + literal: Const { ty: &i32, val: Unevaluated(bar, [], Some(promoted[1])) }
-        Retag(_10);                      // scope 1 at $DIR/inline-retag.rs:+2:7: +2:9
-        _4 = &(*_10);                    // scope 1 at $DIR/inline-retag.rs:+2:7: +2:9
-        Retag(_4);                       // scope 1 at $DIR/inline-retag.rs:+2:7: +2:9
-        _3 = &(*_4);                     // scope 1 at $DIR/inline-retag.rs:+2:7: +2:9
-        Retag(_3);                       // scope 1 at $DIR/inline-retag.rs:+2:7: +2:9
-        StorageLive(_6);                 // scope 1 at $DIR/inline-retag.rs:+2:11: +2:14
-        StorageLive(_7);                 // scope 1 at $DIR/inline-retag.rs:+2:11: +2:14
-        _9 = const _;                    // scope 1 at $DIR/inline-retag.rs:+2:11: +2:14
+        Retag(_10);                      // scope 1 at $DIR/inline_retag.rs:+2:7: +2:9
+        _4 = &(*_10);                    // scope 1 at $DIR/inline_retag.rs:+2:7: +2:9
+        Retag(_4);                       // scope 1 at $DIR/inline_retag.rs:+2:7: +2:9
+        _3 = &(*_4);                     // scope 1 at $DIR/inline_retag.rs:+2:7: +2:9
+        Retag(_3);                       // scope 1 at $DIR/inline_retag.rs:+2:7: +2:9
+        StorageLive(_6);                 // scope 1 at $DIR/inline_retag.rs:+2:11: +2:14
+        StorageLive(_7);                 // scope 1 at $DIR/inline_retag.rs:+2:11: +2:14
+        _9 = const _;                    // scope 1 at $DIR/inline_retag.rs:+2:11: +2:14
                                          // mir::Constant
-                                         // + span: $DIR/inline-retag.rs:12:11: 12:14
+                                         // + span: $DIR/inline_retag.rs:12:11: 12:14
                                          // + literal: Const { ty: &i32, val: Unevaluated(bar, [], Some(promoted[0])) }
-        Retag(_9);                       // scope 1 at $DIR/inline-retag.rs:+2:11: +2:14
-        _7 = &(*_9);                     // scope 1 at $DIR/inline-retag.rs:+2:11: +2:14
-        Retag(_7);                       // scope 1 at $DIR/inline-retag.rs:+2:11: +2:14
-        _6 = &(*_7);                     // scope 1 at $DIR/inline-retag.rs:+2:11: +2:14
-        Retag(_6);                       // scope 1 at $DIR/inline-retag.rs:+2:11: +2:14
-        Retag(_3);                       // scope 2 at $DIR/inline-retag.rs:16:8: 16:9
-        Retag(_6);                       // scope 2 at $DIR/inline-retag.rs:16:17: 16:18
-        StorageLive(_11);                // scope 2 at $DIR/inline-retag.rs:17:5: 17:7
-        _11 = (*_3);                     // scope 2 at $DIR/inline-retag.rs:17:5: 17:7
-        StorageLive(_12);                // scope 2 at $DIR/inline-retag.rs:17:11: 17:13
-        _12 = (*_6);                     // scope 2 at $DIR/inline-retag.rs:17:11: 17:13
-        _0 = Eq(move _11, move _12);     // scope 2 at $DIR/inline-retag.rs:17:5: 17:13
-        StorageDead(_12);                // scope 2 at $DIR/inline-retag.rs:17:12: 17:13
-        StorageDead(_11);                // scope 2 at $DIR/inline-retag.rs:17:12: 17:13
-        StorageDead(_6);                 // scope 1 at $DIR/inline-retag.rs:+2:14: +2:15
-        StorageDead(_3);                 // scope 1 at $DIR/inline-retag.rs:+2:14: +2:15
-        StorageDead(_2);                 // scope 1 at $DIR/inline-retag.rs:+2:14: +2:15
-        StorageDead(_1);                 // scope 0 at $DIR/inline-retag.rs:+3:1: +3:2
-        StorageDead(_7);                 // scope 0 at $DIR/inline-retag.rs:+3:1: +3:2
-        StorageDead(_4);                 // scope 0 at $DIR/inline-retag.rs:+3:1: +3:2
-        return;                          // scope 0 at $DIR/inline-retag.rs:+3:2: +3:2
+        Retag(_9);                       // scope 1 at $DIR/inline_retag.rs:+2:11: +2:14
+        _7 = &(*_9);                     // scope 1 at $DIR/inline_retag.rs:+2:11: +2:14
+        Retag(_7);                       // scope 1 at $DIR/inline_retag.rs:+2:11: +2:14
+        _6 = &(*_7);                     // scope 1 at $DIR/inline_retag.rs:+2:11: +2:14
+        Retag(_6);                       // scope 1 at $DIR/inline_retag.rs:+2:11: +2:14
+        Retag(_3);                       // scope 2 at $DIR/inline_retag.rs:16:8: 16:9
+        Retag(_6);                       // scope 2 at $DIR/inline_retag.rs:16:17: 16:18
+        StorageLive(_11);                // scope 2 at $DIR/inline_retag.rs:17:5: 17:7
+        _11 = (*_3);                     // scope 2 at $DIR/inline_retag.rs:17:5: 17:7
+        StorageLive(_12);                // scope 2 at $DIR/inline_retag.rs:17:11: 17:13
+        _12 = (*_6);                     // scope 2 at $DIR/inline_retag.rs:17:11: 17:13
+        _0 = Eq(move _11, move _12);     // scope 2 at $DIR/inline_retag.rs:17:5: 17:13
+        StorageDead(_12);                // scope 2 at $DIR/inline_retag.rs:17:12: 17:13
+        StorageDead(_11);                // scope 2 at $DIR/inline_retag.rs:17:12: 17:13
+        StorageDead(_6);                 // scope 1 at $DIR/inline_retag.rs:+2:14: +2:15
+        StorageDead(_3);                 // scope 1 at $DIR/inline_retag.rs:+2:14: +2:15
+        StorageDead(_2);                 // scope 1 at $DIR/inline_retag.rs:+2:14: +2:15
+        StorageDead(_1);                 // scope 0 at $DIR/inline_retag.rs:+3:1: +3:2
+        StorageDead(_7);                 // scope 0 at $DIR/inline_retag.rs:+3:1: +3:2
+        StorageDead(_4);                 // scope 0 at $DIR/inline_retag.rs:+3:1: +3:2
+        return;                          // scope 0 at $DIR/inline_retag.rs:+3:2: +3:2
     }
 }
diff --git a/src/test/mir-opt/inline/inline-retag.rs b/src/test/mir-opt/inline/inline_retag.rs
similarity index 100%
rename from src/test/mir-opt/inline/inline-retag.rs
rename to src/test/mir-opt/inline/inline_retag.rs
diff --git a/src/test/mir-opt/inline/inline_shims.clone.Inline.diff b/src/test/mir-opt/inline/inline_shims.clone.Inline.diff
index d691e90b7dac6..969573ba3253f 100644
--- a/src/test/mir-opt/inline/inline_shims.clone.Inline.diff
+++ b/src/test/mir-opt/inline/inline_shims.clone.Inline.diff
@@ -2,25 +2,25 @@
 + // MIR for `clone` after Inline
   
   fn clone(_1: fn(A, B)) -> fn(A, B) {
-      debug f => _1;                       // in scope 0 at $DIR/inline-shims.rs:+0:20: +0:21
-      let mut _0: fn(A, B);                // return place in scope 0 at $DIR/inline-shims.rs:+0:36: +0:44
-      let mut _2: &fn(A, B);               // in scope 0 at $DIR/inline-shims.rs:+1:5: +1:14
-+     scope 1 (inlined <fn(A, B) as Clone>::clone - shim(fn(A, B))) { // at $DIR/inline-shims.rs:6:5: 6:14
+      debug f => _1;                       // in scope 0 at $DIR/inline_shims.rs:+0:20: +0:21
+      let mut _0: fn(A, B);                // return place in scope 0 at $DIR/inline_shims.rs:+0:36: +0:44
+      let mut _2: &fn(A, B);               // in scope 0 at $DIR/inline_shims.rs:+1:5: +1:14
++     scope 1 (inlined <fn(A, B) as Clone>::clone - shim(fn(A, B))) { // at $DIR/inline_shims.rs:6:5: 6:14
 +     }
   
       bb0: {
-          StorageLive(_2);                 // scope 0 at $DIR/inline-shims.rs:+1:5: +1:14
-          _2 = &_1;                        // scope 0 at $DIR/inline-shims.rs:+1:5: +1:14
--         _0 = <fn(A, B) as Clone>::clone(move _2) -> bb1; // scope 0 at $DIR/inline-shims.rs:+1:5: +1:14
+          StorageLive(_2);                 // scope 0 at $DIR/inline_shims.rs:+1:5: +1:14
+          _2 = &_1;                        // scope 0 at $DIR/inline_shims.rs:+1:5: +1:14
+-         _0 = <fn(A, B) as Clone>::clone(move _2) -> bb1; // scope 0 at $DIR/inline_shims.rs:+1:5: +1:14
 -                                          // mir::Constant
--                                          // + span: $DIR/inline-shims.rs:6:7: 6:12
+-                                          // + span: $DIR/inline_shims.rs:6:7: 6:12
 -                                          // + literal: Const { ty: for<'a> fn(&'a fn(A, B)) -> fn(A, B) {<fn(A, B) as Clone>::clone}, val: Value(<ZST>) }
 -     }
 - 
 -     bb1: {
 +         _0 = (*_2);                      // scope 1 at $SRC_DIR/core/src/clone.rs:LL:COL
-          StorageDead(_2);                 // scope 0 at $DIR/inline-shims.rs:+1:13: +1:14
-          return;                          // scope 0 at $DIR/inline-shims.rs:+2:2: +2:2
+          StorageDead(_2);                 // scope 0 at $DIR/inline_shims.rs:+1:13: +1:14
+          return;                          // scope 0 at $DIR/inline_shims.rs:+2:2: +2:2
       }
   }
   
diff --git a/src/test/mir-opt/inline/inline_shims.drop.Inline.diff b/src/test/mir-opt/inline/inline_shims.drop.Inline.diff
index f7b1cde80bdc7..7a54beca2336c 100644
--- a/src/test/mir-opt/inline/inline_shims.drop.Inline.diff
+++ b/src/test/mir-opt/inline/inline_shims.drop.Inline.diff
@@ -2,51 +2,51 @@
 + // MIR for `drop` after Inline
   
   fn drop(_1: *mut Vec<A>, _2: *mut Option<B>) -> () {
-      debug a => _1;                       // in scope 0 at $DIR/inline-shims.rs:+0:19: +0:20
-      debug b => _2;                       // in scope 0 at $DIR/inline-shims.rs:+0:35: +0:36
-      let mut _0: ();                      // return place in scope 0 at $DIR/inline-shims.rs:+0:54: +0:54
-      let _3: ();                          // in scope 0 at $DIR/inline-shims.rs:+1:14: +1:40
-      let mut _4: *mut std::vec::Vec<A>;   // in scope 0 at $DIR/inline-shims.rs:+1:38: +1:39
-      let mut _5: *mut std::option::Option<B>; // in scope 0 at $DIR/inline-shims.rs:+2:38: +2:39
+      debug a => _1;                       // in scope 0 at $DIR/inline_shims.rs:+0:19: +0:20
+      debug b => _2;                       // in scope 0 at $DIR/inline_shims.rs:+0:35: +0:36
+      let mut _0: ();                      // return place in scope 0 at $DIR/inline_shims.rs:+0:54: +0:54
+      let _3: ();                          // in scope 0 at $DIR/inline_shims.rs:+1:14: +1:40
+      let mut _4: *mut std::vec::Vec<A>;   // in scope 0 at $DIR/inline_shims.rs:+1:38: +1:39
+      let mut _5: *mut std::option::Option<B>; // in scope 0 at $DIR/inline_shims.rs:+2:38: +2:39
       scope 1 {
       }
       scope 2 {
-+         scope 3 (inlined std::ptr::drop_in_place::<Option<B>> - shim(Some(Option<B>))) { // at $DIR/inline-shims.rs:12:14: 12:40
++         scope 3 (inlined std::ptr::drop_in_place::<Option<B>> - shim(Some(Option<B>))) { // at $DIR/inline_shims.rs:12:14: 12:40
 +             let mut _6: isize;           // in scope 3 at $SRC_DIR/core/src/ptr/mod.rs:LL:COL
 +             let mut _7: isize;           // in scope 3 at $SRC_DIR/core/src/ptr/mod.rs:LL:COL
 +         }
       }
   
       bb0: {
-          StorageLive(_3);                 // scope 0 at $DIR/inline-shims.rs:+1:5: +1:42
-          StorageLive(_4);                 // scope 1 at $DIR/inline-shims.rs:+1:38: +1:39
-          _4 = _1;                         // scope 1 at $DIR/inline-shims.rs:+1:38: +1:39
-          _3 = std::ptr::drop_in_place::<Vec<A>>(move _4) -> bb1; // scope 1 at $DIR/inline-shims.rs:+1:14: +1:40
+          StorageLive(_3);                 // scope 0 at $DIR/inline_shims.rs:+1:5: +1:42
+          StorageLive(_4);                 // scope 1 at $DIR/inline_shims.rs:+1:38: +1:39
+          _4 = _1;                         // scope 1 at $DIR/inline_shims.rs:+1:38: +1:39
+          _3 = std::ptr::drop_in_place::<Vec<A>>(move _4) -> bb1; // scope 1 at $DIR/inline_shims.rs:+1:14: +1:40
                                            // mir::Constant
-                                           // + span: $DIR/inline-shims.rs:11:14: 11:37
+                                           // + span: $DIR/inline_shims.rs:11:14: 11:37
                                            // + literal: Const { ty: unsafe fn(*mut Vec<A>) {std::ptr::drop_in_place::<Vec<A>>}, val: Value(<ZST>) }
       }
   
       bb1: {
-          StorageDead(_4);                 // scope 1 at $DIR/inline-shims.rs:+1:39: +1:40
-          StorageDead(_3);                 // scope 0 at $DIR/inline-shims.rs:+1:41: +1:42
-          StorageLive(_5);                 // scope 2 at $DIR/inline-shims.rs:+2:38: +2:39
-          _5 = _2;                         // scope 2 at $DIR/inline-shims.rs:+2:38: +2:39
--         _0 = std::ptr::drop_in_place::<Option<B>>(move _5) -> bb2; // scope 2 at $DIR/inline-shims.rs:+2:14: +2:40
+          StorageDead(_4);                 // scope 1 at $DIR/inline_shims.rs:+1:39: +1:40
+          StorageDead(_3);                 // scope 0 at $DIR/inline_shims.rs:+1:41: +1:42
+          StorageLive(_5);                 // scope 2 at $DIR/inline_shims.rs:+2:38: +2:39
+          _5 = _2;                         // scope 2 at $DIR/inline_shims.rs:+2:38: +2:39
+-         _0 = std::ptr::drop_in_place::<Option<B>>(move _5) -> bb2; // scope 2 at $DIR/inline_shims.rs:+2:14: +2:40
 -                                          // mir::Constant
--                                          // + span: $DIR/inline-shims.rs:12:14: 12:37
+-                                          // + span: $DIR/inline_shims.rs:12:14: 12:37
 -                                          // + literal: Const { ty: unsafe fn(*mut Option<B>) {std::ptr::drop_in_place::<Option<B>>}, val: Value(<ZST>) }
-+         StorageLive(_6);                 // scope 2 at $DIR/inline-shims.rs:+2:14: +2:40
-+         StorageLive(_7);                 // scope 2 at $DIR/inline-shims.rs:+2:14: +2:40
++         StorageLive(_6);                 // scope 2 at $DIR/inline_shims.rs:+2:14: +2:40
++         StorageLive(_7);                 // scope 2 at $DIR/inline_shims.rs:+2:14: +2:40
 +         _6 = discriminant((*_5));        // scope 3 at $SRC_DIR/core/src/ptr/mod.rs:LL:COL
 +         switchInt(move _6) -> [0_isize: bb2, otherwise: bb3]; // scope 3 at $SRC_DIR/core/src/ptr/mod.rs:LL:COL
       }
   
       bb2: {
-+         StorageDead(_7);                 // scope 2 at $DIR/inline-shims.rs:+2:14: +2:40
-+         StorageDead(_6);                 // scope 2 at $DIR/inline-shims.rs:+2:14: +2:40
-          StorageDead(_5);                 // scope 2 at $DIR/inline-shims.rs:+2:39: +2:40
-          return;                          // scope 0 at $DIR/inline-shims.rs:+3:2: +3:2
++         StorageDead(_7);                 // scope 2 at $DIR/inline_shims.rs:+2:14: +2:40
++         StorageDead(_6);                 // scope 2 at $DIR/inline_shims.rs:+2:14: +2:40
+          StorageDead(_5);                 // scope 2 at $DIR/inline_shims.rs:+2:39: +2:40
+          return;                          // scope 0 at $DIR/inline_shims.rs:+3:2: +3:2
 +     }
 + 
 +     bb3: {
diff --git a/src/test/mir-opt/inline/inline-shims.rs b/src/test/mir-opt/inline/inline_shims.rs
similarity index 100%
rename from src/test/mir-opt/inline/inline-shims.rs
rename to src/test/mir-opt/inline/inline_shims.rs
diff --git a/src/test/mir-opt/inline/inline_specialization.main.Inline.diff b/src/test/mir-opt/inline/inline_specialization.main.Inline.diff
index fdf2a1e1ff93f..af08296edea57 100644
--- a/src/test/mir-opt/inline/inline_specialization.main.Inline.diff
+++ b/src/test/mir-opt/inline/inline_specialization.main.Inline.diff
@@ -2,27 +2,27 @@
 + // MIR for `main` after Inline
   
   fn main() -> () {
-      let mut _0: ();                      // return place in scope 0 at $DIR/inline-specialization.rs:+0:11: +0:11
-      let _1: u32;                         // in scope 0 at $DIR/inline-specialization.rs:+1:9: +1:10
+      let mut _0: ();                      // return place in scope 0 at $DIR/inline_specialization.rs:+0:11: +0:11
+      let _1: u32;                         // in scope 0 at $DIR/inline_specialization.rs:+1:9: +1:10
       scope 1 {
-          debug x => _1;                   // in scope 1 at $DIR/inline-specialization.rs:+1:9: +1:10
+          debug x => _1;                   // in scope 1 at $DIR/inline_specialization.rs:+1:9: +1:10
       }
-+     scope 2 (inlined <Vec<()> as Foo>::bar) { // at $DIR/inline-specialization.rs:5:13: 5:38
++     scope 2 (inlined <Vec<()> as Foo>::bar) { // at $DIR/inline_specialization.rs:5:13: 5:38
 +     }
   
       bb0: {
-          StorageLive(_1);                 // scope 0 at $DIR/inline-specialization.rs:+1:9: +1:10
--         _1 = <Vec<()> as Foo>::bar() -> bb1; // scope 0 at $DIR/inline-specialization.rs:+1:13: +1:38
+          StorageLive(_1);                 // scope 0 at $DIR/inline_specialization.rs:+1:9: +1:10
+-         _1 = <Vec<()> as Foo>::bar() -> bb1; // scope 0 at $DIR/inline_specialization.rs:+1:13: +1:38
 -                                          // mir::Constant
--                                          // + span: $DIR/inline-specialization.rs:5:13: 5:36
+-                                          // + span: $DIR/inline_specialization.rs:5:13: 5:36
 -                                          // + literal: Const { ty: fn() -> u32 {<Vec<()> as Foo>::bar}, val: Value(<ZST>) }
 -     }
 - 
 -     bb1: {
-+         _1 = const 123_u32;              // scope 2 at $DIR/inline-specialization.rs:14:31: 14:34
-          _0 = const ();                   // scope 0 at $DIR/inline-specialization.rs:+0:11: +2:2
-          StorageDead(_1);                 // scope 0 at $DIR/inline-specialization.rs:+2:1: +2:2
-          return;                          // scope 0 at $DIR/inline-specialization.rs:+2:2: +2:2
++         _1 = const 123_u32;              // scope 2 at $DIR/inline_specialization.rs:14:31: 14:34
+          _0 = const ();                   // scope 0 at $DIR/inline_specialization.rs:+0:11: +2:2
+          StorageDead(_1);                 // scope 0 at $DIR/inline_specialization.rs:+2:1: +2:2
+          return;                          // scope 0 at $DIR/inline_specialization.rs:+2:2: +2:2
       }
   }
   
diff --git a/src/test/mir-opt/inline/inline-specialization.rs b/src/test/mir-opt/inline/inline_specialization.rs
similarity index 100%
rename from src/test/mir-opt/inline/inline-specialization.rs
rename to src/test/mir-opt/inline/inline_specialization.rs
diff --git a/src/test/mir-opt/inline/inline-trait-method.rs b/src/test/mir-opt/inline/inline_trait_method.rs
similarity index 100%
rename from src/test/mir-opt/inline/inline-trait-method.rs
rename to src/test/mir-opt/inline/inline_trait_method.rs
diff --git a/src/test/mir-opt/inline/inline_trait_method.test.Inline.after.mir b/src/test/mir-opt/inline/inline_trait_method.test.Inline.after.mir
index 89eefc2926911..637bf282a65bf 100644
--- a/src/test/mir-opt/inline/inline_trait_method.test.Inline.after.mir
+++ b/src/test/mir-opt/inline/inline_trait_method.test.Inline.after.mir
@@ -1,21 +1,21 @@
 // MIR for `test` after Inline
 
 fn test(_1: &dyn X) -> u32 {
-    debug x => _1;                       // in scope 0 at $DIR/inline-trait-method.rs:+0:9: +0:10
-    let mut _0: u32;                     // return place in scope 0 at $DIR/inline-trait-method.rs:+0:23: +0:26
-    let mut _2: &dyn X;                  // in scope 0 at $DIR/inline-trait-method.rs:+1:5: +1:10
+    debug x => _1;                       // in scope 0 at $DIR/inline_trait_method.rs:+0:9: +0:10
+    let mut _0: u32;                     // return place in scope 0 at $DIR/inline_trait_method.rs:+0:23: +0:26
+    let mut _2: &dyn X;                  // in scope 0 at $DIR/inline_trait_method.rs:+1:5: +1:10
 
     bb0: {
-        StorageLive(_2);                 // scope 0 at $DIR/inline-trait-method.rs:+1:5: +1:10
-        _2 = &(*_1);                     // scope 0 at $DIR/inline-trait-method.rs:+1:5: +1:10
-        _0 = <dyn X as X>::y(move _2) -> bb1; // scope 0 at $DIR/inline-trait-method.rs:+1:5: +1:10
+        StorageLive(_2);                 // scope 0 at $DIR/inline_trait_method.rs:+1:5: +1:10
+        _2 = &(*_1);                     // scope 0 at $DIR/inline_trait_method.rs:+1:5: +1:10
+        _0 = <dyn X as X>::y(move _2) -> bb1; // scope 0 at $DIR/inline_trait_method.rs:+1:5: +1:10
                                          // mir::Constant
-                                         // + span: $DIR/inline-trait-method.rs:9:7: 9:8
+                                         // + span: $DIR/inline_trait_method.rs:9:7: 9:8
                                          // + literal: Const { ty: for<'a> fn(&'a dyn X) -> u32 {<dyn X as X>::y}, val: Value(<ZST>) }
     }
 
     bb1: {
-        StorageDead(_2);                 // scope 0 at $DIR/inline-trait-method.rs:+1:9: +1:10
-        return;                          // scope 0 at $DIR/inline-trait-method.rs:+2:2: +2:2
+        StorageDead(_2);                 // scope 0 at $DIR/inline_trait_method.rs:+1:9: +1:10
+        return;                          // scope 0 at $DIR/inline_trait_method.rs:+2:2: +2:2
     }
 }
diff --git a/src/test/mir-opt/inline/inline-trait-method_2.rs b/src/test/mir-opt/inline/inline_trait_method_2.rs
similarity index 100%
rename from src/test/mir-opt/inline/inline-trait-method_2.rs
rename to src/test/mir-opt/inline/inline_trait_method_2.rs
diff --git a/src/test/mir-opt/inline/inline_trait_method_2.test2.Inline.after.mir b/src/test/mir-opt/inline/inline_trait_method_2.test2.Inline.after.mir
index 3d05869fa513e..dab8bb9a0c62b 100644
--- a/src/test/mir-opt/inline/inline_trait_method_2.test2.Inline.after.mir
+++ b/src/test/mir-opt/inline/inline_trait_method_2.test2.Inline.after.mir
@@ -1,32 +1,32 @@
 // MIR for `test2` after Inline
 
 fn test2(_1: &dyn X) -> bool {
-    debug x => _1;                       // in scope 0 at $DIR/inline-trait-method_2.rs:+0:10: +0:11
-    let mut _0: bool;                    // return place in scope 0 at $DIR/inline-trait-method_2.rs:+0:24: +0:28
-    let mut _2: &dyn X;                  // in scope 0 at $DIR/inline-trait-method_2.rs:+1:10: +1:11
-    let mut _3: &dyn X;                  // in scope 0 at $DIR/inline-trait-method_2.rs:+1:10: +1:11
-    scope 1 (inlined test) {             // at $DIR/inline-trait-method_2.rs:5:5: 5:12
-        debug x => _2;                   // in scope 1 at $DIR/inline-trait-method_2.rs:9:9: 9:10
-        let mut _4: &dyn X;              // in scope 1 at $DIR/inline-trait-method_2.rs:10:5: 10:10
+    debug x => _1;                       // in scope 0 at $DIR/inline_trait_method_2.rs:+0:10: +0:11
+    let mut _0: bool;                    // return place in scope 0 at $DIR/inline_trait_method_2.rs:+0:24: +0:28
+    let mut _2: &dyn X;                  // in scope 0 at $DIR/inline_trait_method_2.rs:+1:10: +1:11
+    let mut _3: &dyn X;                  // in scope 0 at $DIR/inline_trait_method_2.rs:+1:10: +1:11
+    scope 1 (inlined test) {             // at $DIR/inline_trait_method_2.rs:5:5: 5:12
+        debug x => _2;                   // in scope 1 at $DIR/inline_trait_method_2.rs:9:9: 9:10
+        let mut _4: &dyn X;              // in scope 1 at $DIR/inline_trait_method_2.rs:10:5: 10:10
     }
 
     bb0: {
-        StorageLive(_2);                 // scope 0 at $DIR/inline-trait-method_2.rs:+1:10: +1:11
-        StorageLive(_3);                 // scope 0 at $DIR/inline-trait-method_2.rs:+1:10: +1:11
-        _3 = &(*_1);                     // scope 0 at $DIR/inline-trait-method_2.rs:+1:10: +1:11
-        _2 = move _3 as &dyn X (Pointer(Unsize)); // scope 0 at $DIR/inline-trait-method_2.rs:+1:10: +1:11
-        StorageDead(_3);                 // scope 0 at $DIR/inline-trait-method_2.rs:+1:10: +1:11
-        StorageLive(_4);                 // scope 1 at $DIR/inline-trait-method_2.rs:10:5: 10:10
-        _4 = _2;                         // scope 1 at $DIR/inline-trait-method_2.rs:10:5: 10:10
-        _0 = <dyn X as X>::y(move _4) -> bb1; // scope 1 at $DIR/inline-trait-method_2.rs:10:5: 10:10
+        StorageLive(_2);                 // scope 0 at $DIR/inline_trait_method_2.rs:+1:10: +1:11
+        StorageLive(_3);                 // scope 0 at $DIR/inline_trait_method_2.rs:+1:10: +1:11
+        _3 = &(*_1);                     // scope 0 at $DIR/inline_trait_method_2.rs:+1:10: +1:11
+        _2 = move _3 as &dyn X (Pointer(Unsize)); // scope 0 at $DIR/inline_trait_method_2.rs:+1:10: +1:11
+        StorageDead(_3);                 // scope 0 at $DIR/inline_trait_method_2.rs:+1:10: +1:11
+        StorageLive(_4);                 // scope 1 at $DIR/inline_trait_method_2.rs:10:5: 10:10
+        _4 = _2;                         // scope 1 at $DIR/inline_trait_method_2.rs:10:5: 10:10
+        _0 = <dyn X as X>::y(move _4) -> bb1; // scope 1 at $DIR/inline_trait_method_2.rs:10:5: 10:10
                                          // mir::Constant
-                                         // + span: $DIR/inline-trait-method_2.rs:10:7: 10:8
+                                         // + span: $DIR/inline_trait_method_2.rs:10:7: 10:8
                                          // + literal: Const { ty: for<'a> fn(&'a dyn X) -> bool {<dyn X as X>::y}, val: Value(<ZST>) }
     }
 
     bb1: {
-        StorageDead(_4);                 // scope 1 at $DIR/inline-trait-method_2.rs:10:9: 10:10
-        StorageDead(_2);                 // scope 0 at $DIR/inline-trait-method_2.rs:+1:11: +1:12
-        return;                          // scope 0 at $DIR/inline-trait-method_2.rs:+2:2: +2:2
+        StorageDead(_4);                 // scope 1 at $DIR/inline_trait_method_2.rs:10:9: 10:10
+        StorageDead(_2);                 // scope 0 at $DIR/inline_trait_method_2.rs:+1:11: +1:12
+        return;                          // scope 0 at $DIR/inline_trait_method_2.rs:+2:2: +2:2
     }
 }
diff --git a/src/test/mir-opt/inline/issue_58867_inline_as_ref_as_mut.a.Inline.after.mir b/src/test/mir-opt/inline/issue_58867_inline_as_ref_as_mut.a.Inline.after.mir
index 5168ae031f04c..777681e1ce7ec 100644
--- a/src/test/mir-opt/inline/issue_58867_inline_as_ref_as_mut.a.Inline.after.mir
+++ b/src/test/mir-opt/inline/issue_58867_inline_as_ref_as_mut.a.Inline.after.mir
@@ -1,30 +1,30 @@
 // MIR for `a` after Inline
 
 fn a(_1: &mut [T]) -> &mut [T] {
-    debug x => _1;                       // in scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+0:13: +0:14
-    let mut _0: &mut [T];                // return place in scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+0:29: +0:37
-    let mut _2: &mut [T];                // in scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+1:5: +1:15
-    let mut _3: &mut [T];                // in scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+1:5: +1:15
-    let mut _4: &mut [T];                // in scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+1:5: +1:15
-    scope 1 (inlined <[T] as AsMut<[T]>>::as_mut) { // at $DIR/issue-58867-inline-as-ref-as-mut.rs:3:5: 3:15
+    debug x => _1;                       // in scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+0:13: +0:14
+    let mut _0: &mut [T];                // return place in scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+0:29: +0:37
+    let mut _2: &mut [T];                // in scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+1:5: +1:15
+    let mut _3: &mut [T];                // in scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+1:5: +1:15
+    let mut _4: &mut [T];                // in scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+1:5: +1:15
+    scope 1 (inlined <[T] as AsMut<[T]>>::as_mut) { // at $DIR/issue_58867_inline_as_ref_as_mut.rs:3:5: 3:15
         debug self => _4;                // in scope 1 at $SRC_DIR/core/src/convert/mod.rs:LL:COL
         let mut _5: &mut [T];            // in scope 1 at $SRC_DIR/core/src/convert/mod.rs:LL:COL
     }
 
     bb0: {
-        StorageLive(_2);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+1:5: +1:15
-        StorageLive(_3);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+1:5: +1:15
-        StorageLive(_4);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+1:5: +1:15
-        _4 = &mut (*_1);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+1:5: +1:15
+        StorageLive(_2);                 // scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+1:5: +1:15
+        StorageLive(_3);                 // scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+1:5: +1:15
+        StorageLive(_4);                 // scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+1:5: +1:15
+        _4 = &mut (*_1);                 // scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+1:5: +1:15
         StorageLive(_5);                 // scope 1 at $SRC_DIR/core/src/convert/mod.rs:LL:COL
         _5 = &mut (*_4);                 // scope 1 at $SRC_DIR/core/src/convert/mod.rs:LL:COL
         _3 = &mut (*_5);                 // scope 1 at $SRC_DIR/core/src/convert/mod.rs:LL:COL
         StorageDead(_5);                 // scope 1 at $SRC_DIR/core/src/convert/mod.rs:LL:COL
-        _2 = &mut (*_3);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+1:5: +1:15
-        StorageDead(_4);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+1:14: +1:15
-        _0 = &mut (*_2);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+1:5: +1:15
-        StorageDead(_3);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+2:1: +2:2
-        StorageDead(_2);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+2:1: +2:2
-        return;                          // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+2:2: +2:2
+        _2 = &mut (*_3);                 // scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+1:5: +1:15
+        StorageDead(_4);                 // scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+1:14: +1:15
+        _0 = &mut (*_2);                 // scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+1:5: +1:15
+        StorageDead(_3);                 // scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+2:1: +2:2
+        StorageDead(_2);                 // scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+2:1: +2:2
+        return;                          // scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+2:2: +2:2
     }
 }
diff --git a/src/test/mir-opt/inline/issue_58867_inline_as_ref_as_mut.b.Inline.after.mir b/src/test/mir-opt/inline/issue_58867_inline_as_ref_as_mut.b.Inline.after.mir
index 06d442ae88b96..83545c991000e 100644
--- a/src/test/mir-opt/inline/issue_58867_inline_as_ref_as_mut.b.Inline.after.mir
+++ b/src/test/mir-opt/inline/issue_58867_inline_as_ref_as_mut.b.Inline.after.mir
@@ -1,12 +1,12 @@
 // MIR for `b` after Inline
 
 fn b(_1: &mut Box<T>) -> &mut T {
-    debug x => _1;                       // in scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+0:13: +0:14
-    let mut _0: &mut T;                  // return place in scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+0:32: +0:38
-    let mut _2: &mut T;                  // in scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+1:5: +1:15
-    let mut _3: &mut T;                  // in scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+1:5: +1:15
-    let mut _4: &mut std::boxed::Box<T>; // in scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+1:5: +1:15
-    scope 1 (inlined <Box<T> as AsMut<T>>::as_mut) { // at $DIR/issue-58867-inline-as-ref-as-mut.rs:8:5: 8:15
+    debug x => _1;                       // in scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+0:13: +0:14
+    let mut _0: &mut T;                  // return place in scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+0:32: +0:38
+    let mut _2: &mut T;                  // in scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+1:5: +1:15
+    let mut _3: &mut T;                  // in scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+1:5: +1:15
+    let mut _4: &mut std::boxed::Box<T>; // in scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+1:5: +1:15
+    scope 1 (inlined <Box<T> as AsMut<T>>::as_mut) { // at $DIR/issue_58867_inline_as_ref_as_mut.rs:8:5: 8:15
         debug self => _4;                // in scope 1 at $SRC_DIR/alloc/src/boxed.rs:LL:COL
         let mut _5: &mut T;              // in scope 1 at $SRC_DIR/alloc/src/boxed.rs:LL:COL
         let mut _6: &mut T;              // in scope 1 at $SRC_DIR/alloc/src/boxed.rs:LL:COL
@@ -15,10 +15,10 @@ fn b(_1: &mut Box<T>) -> &mut T {
     }
 
     bb0: {
-        StorageLive(_2);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+1:5: +1:15
-        StorageLive(_3);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+1:5: +1:15
-        StorageLive(_4);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+1:5: +1:15
-        _4 = &mut (*_1);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+1:5: +1:15
+        StorageLive(_2);                 // scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+1:5: +1:15
+        StorageLive(_3);                 // scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+1:5: +1:15
+        StorageLive(_4);                 // scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+1:5: +1:15
+        _4 = &mut (*_1);                 // scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+1:5: +1:15
         StorageLive(_5);                 // scope 1 at $SRC_DIR/alloc/src/boxed.rs:LL:COL
         StorageLive(_6);                 // scope 1 at $SRC_DIR/alloc/src/boxed.rs:LL:COL
         _7 = deref_copy (*_4);           // scope 1 at $SRC_DIR/alloc/src/boxed.rs:LL:COL
@@ -28,11 +28,11 @@ fn b(_1: &mut Box<T>) -> &mut T {
         _3 = &mut (*_5);                 // scope 1 at $SRC_DIR/alloc/src/boxed.rs:LL:COL
         StorageDead(_6);                 // scope 1 at $SRC_DIR/alloc/src/boxed.rs:LL:COL
         StorageDead(_5);                 // scope 1 at $SRC_DIR/alloc/src/boxed.rs:LL:COL
-        _2 = &mut (*_3);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+1:5: +1:15
-        StorageDead(_4);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+1:14: +1:15
-        _0 = &mut (*_2);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+1:5: +1:15
-        StorageDead(_3);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+2:1: +2:2
-        StorageDead(_2);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+2:1: +2:2
-        return;                          // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+2:2: +2:2
+        _2 = &mut (*_3);                 // scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+1:5: +1:15
+        StorageDead(_4);                 // scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+1:14: +1:15
+        _0 = &mut (*_2);                 // scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+1:5: +1:15
+        StorageDead(_3);                 // scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+2:1: +2:2
+        StorageDead(_2);                 // scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+2:1: +2:2
+        return;                          // scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+2:2: +2:2
     }
 }
diff --git a/src/test/mir-opt/inline/issue_58867_inline_as_ref_as_mut.c.Inline.after.mir b/src/test/mir-opt/inline/issue_58867_inline_as_ref_as_mut.c.Inline.after.mir
index c7f20ff98ff72..ed4e9927ce9cd 100644
--- a/src/test/mir-opt/inline/issue_58867_inline_as_ref_as_mut.c.Inline.after.mir
+++ b/src/test/mir-opt/inline/issue_58867_inline_as_ref_as_mut.c.Inline.after.mir
@@ -1,22 +1,22 @@
 // MIR for `c` after Inline
 
 fn c(_1: &[T]) -> &[T] {
-    debug x => _1;                       // in scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+0:13: +0:14
-    let mut _0: &[T];                    // return place in scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+0:25: +0:29
-    let _2: &[T];                        // in scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+1:5: +1:15
-    let mut _3: &[T];                    // in scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+1:5: +1:15
-    scope 1 (inlined <[T] as AsRef<[T]>>::as_ref) { // at $DIR/issue-58867-inline-as-ref-as-mut.rs:13:5: 13:15
+    debug x => _1;                       // in scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+0:13: +0:14
+    let mut _0: &[T];                    // return place in scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+0:25: +0:29
+    let _2: &[T];                        // in scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+1:5: +1:15
+    let mut _3: &[T];                    // in scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+1:5: +1:15
+    scope 1 (inlined <[T] as AsRef<[T]>>::as_ref) { // at $DIR/issue_58867_inline_as_ref_as_mut.rs:13:5: 13:15
         debug self => _3;                // in scope 1 at $SRC_DIR/core/src/convert/mod.rs:LL:COL
     }
 
     bb0: {
-        StorageLive(_2);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+1:5: +1:15
-        StorageLive(_3);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+1:5: +1:15
-        _3 = &(*_1);                     // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+1:5: +1:15
+        StorageLive(_2);                 // scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+1:5: +1:15
+        StorageLive(_3);                 // scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+1:5: +1:15
+        _3 = &(*_1);                     // scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+1:5: +1:15
         _2 = _3;                         // scope 1 at $SRC_DIR/core/src/convert/mod.rs:LL:COL
-        _0 = &(*_2);                     // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+1:5: +1:15
-        StorageDead(_3);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+1:14: +1:15
-        StorageDead(_2);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+2:1: +2:2
-        return;                          // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+2:2: +2:2
+        _0 = &(*_2);                     // scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+1:5: +1:15
+        StorageDead(_3);                 // scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+1:14: +1:15
+        StorageDead(_2);                 // scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+2:1: +2:2
+        return;                          // scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+2:2: +2:2
     }
 }
diff --git a/src/test/mir-opt/inline/issue_58867_inline_as_ref_as_mut.d.Inline.after.mir b/src/test/mir-opt/inline/issue_58867_inline_as_ref_as_mut.d.Inline.after.mir
index d5f06c54a57c0..18a2670be2158 100644
--- a/src/test/mir-opt/inline/issue_58867_inline_as_ref_as_mut.d.Inline.after.mir
+++ b/src/test/mir-opt/inline/issue_58867_inline_as_ref_as_mut.d.Inline.after.mir
@@ -1,26 +1,26 @@
 // MIR for `d` after Inline
 
 fn d(_1: &Box<T>) -> &T {
-    debug x => _1;                       // in scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+0:13: +0:14
-    let mut _0: &T;                      // return place in scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+0:28: +0:30
-    let _2: &T;                          // in scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+1:5: +1:15
-    let mut _3: &std::boxed::Box<T>;     // in scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+1:5: +1:15
-    scope 1 (inlined <Box<T> as AsRef<T>>::as_ref) { // at $DIR/issue-58867-inline-as-ref-as-mut.rs:18:5: 18:15
+    debug x => _1;                       // in scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+0:13: +0:14
+    let mut _0: &T;                      // return place in scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+0:28: +0:30
+    let _2: &T;                          // in scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+1:5: +1:15
+    let mut _3: &std::boxed::Box<T>;     // in scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+1:5: +1:15
+    scope 1 (inlined <Box<T> as AsRef<T>>::as_ref) { // at $DIR/issue_58867_inline_as_ref_as_mut.rs:18:5: 18:15
         debug self => _3;                // in scope 1 at $SRC_DIR/alloc/src/boxed.rs:LL:COL
         let mut _4: std::boxed::Box<T>;  // in scope 1 at $SRC_DIR/alloc/src/boxed.rs:LL:COL
         let mut _5: *const T;            // in scope 1 at $SRC_DIR/alloc/src/boxed.rs:LL:COL
     }
 
     bb0: {
-        StorageLive(_2);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+1:5: +1:15
-        StorageLive(_3);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+1:5: +1:15
-        _3 = &(*_1);                     // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+1:5: +1:15
+        StorageLive(_2);                 // scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+1:5: +1:15
+        StorageLive(_3);                 // scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+1:5: +1:15
+        _3 = &(*_1);                     // scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+1:5: +1:15
         _4 = deref_copy (*_3);           // scope 1 at $SRC_DIR/alloc/src/boxed.rs:LL:COL
         _5 = (((_4.0: std::ptr::Unique<T>).0: std::ptr::NonNull<T>).0: *const T); // scope 1 at $SRC_DIR/alloc/src/boxed.rs:LL:COL
         _2 = &(*_5);                     // scope 1 at $SRC_DIR/alloc/src/boxed.rs:LL:COL
-        _0 = &(*_2);                     // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+1:5: +1:15
-        StorageDead(_3);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+1:14: +1:15
-        StorageDead(_2);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+2:1: +2:2
-        return;                          // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:+2:2: +2:2
+        _0 = &(*_2);                     // scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+1:5: +1:15
+        StorageDead(_3);                 // scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+1:14: +1:15
+        StorageDead(_2);                 // scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+2:1: +2:2
+        return;                          // scope 0 at $DIR/issue_58867_inline_as_ref_as_mut.rs:+2:2: +2:2
     }
 }
diff --git a/src/test/mir-opt/inline/issue-58867-inline-as-ref-as-mut.rs b/src/test/mir-opt/inline/issue_58867_inline_as_ref_as_mut.rs
similarity index 100%
rename from src/test/mir-opt/inline/issue-58867-inline-as-ref-as-mut.rs
rename to src/test/mir-opt/inline/issue_58867_inline_as_ref_as_mut.rs
diff --git a/src/test/mir-opt/inline/issue_76997_inline_scopes_parenting.main.Inline.after.mir b/src/test/mir-opt/inline/issue_76997_inline_scopes_parenting.main.Inline.after.mir
index fca53a72f8820..d99ae1a6c7c83 100644
--- a/src/test/mir-opt/inline/issue_76997_inline_scopes_parenting.main.Inline.after.mir
+++ b/src/test/mir-opt/inline/issue_76997_inline_scopes_parenting.main.Inline.after.mir
@@ -1,42 +1,42 @@
 // MIR for `main` after Inline
 
 fn main() -> () {
-    let mut _0: ();                      // return place in scope 0 at $DIR/issue-76997-inline-scopes-parenting.rs:+0:11: +0:11
-    let _1: [closure@$DIR/issue-76997-inline-scopes-parenting.rs:5:13: 5:16]; // in scope 0 at $DIR/issue-76997-inline-scopes-parenting.rs:+1:9: +1:10
-    let mut _2: &[closure@$DIR/issue-76997-inline-scopes-parenting.rs:5:13: 5:16]; // in scope 0 at $DIR/issue-76997-inline-scopes-parenting.rs:+2:5: +2:6
-    let mut _3: ((),);                   // in scope 0 at $DIR/issue-76997-inline-scopes-parenting.rs:+2:5: +2:10
-    let mut _4: ();                      // in scope 0 at $DIR/issue-76997-inline-scopes-parenting.rs:+2:7: +2:9
-    let mut _5: ();                      // in scope 0 at $DIR/issue-76997-inline-scopes-parenting.rs:+2:5: +2:10
+    let mut _0: ();                      // return place in scope 0 at $DIR/issue_76997_inline_scopes_parenting.rs:+0:11: +0:11
+    let _1: [closure@$DIR/issue_76997_inline_scopes_parenting.rs:5:13: 5:16]; // in scope 0 at $DIR/issue_76997_inline_scopes_parenting.rs:+1:9: +1:10
+    let mut _2: &[closure@$DIR/issue_76997_inline_scopes_parenting.rs:5:13: 5:16]; // in scope 0 at $DIR/issue_76997_inline_scopes_parenting.rs:+2:5: +2:6
+    let mut _3: ((),);                   // in scope 0 at $DIR/issue_76997_inline_scopes_parenting.rs:+2:5: +2:10
+    let mut _4: ();                      // in scope 0 at $DIR/issue_76997_inline_scopes_parenting.rs:+2:7: +2:9
+    let mut _5: ();                      // in scope 0 at $DIR/issue_76997_inline_scopes_parenting.rs:+2:5: +2:10
     scope 1 {
-        debug f => _1;                   // in scope 1 at $DIR/issue-76997-inline-scopes-parenting.rs:+1:9: +1:10
-        scope 2 (inlined main::{closure#0}) { // at $DIR/issue-76997-inline-scopes-parenting.rs:6:5: 6:10
-            debug x => _5;               // in scope 2 at $DIR/issue-76997-inline-scopes-parenting.rs:+1:14: +1:15
-            let _6: ();                  // in scope 2 at $DIR/issue-76997-inline-scopes-parenting.rs:+1:23: +1:24
+        debug f => _1;                   // in scope 1 at $DIR/issue_76997_inline_scopes_parenting.rs:+1:9: +1:10
+        scope 2 (inlined main::{closure#0}) { // at $DIR/issue_76997_inline_scopes_parenting.rs:6:5: 6:10
+            debug x => _5;               // in scope 2 at $DIR/issue_76997_inline_scopes_parenting.rs:+1:14: +1:15
+            let _6: ();                  // in scope 2 at $DIR/issue_76997_inline_scopes_parenting.rs:+1:23: +1:24
             scope 3 {
-                debug y => _6;           // in scope 3 at $DIR/issue-76997-inline-scopes-parenting.rs:+1:23: +1:24
+                debug y => _6;           // in scope 3 at $DIR/issue_76997_inline_scopes_parenting.rs:+1:23: +1:24
             }
         }
     }
 
     bb0: {
-        StorageLive(_1);                 // scope 0 at $DIR/issue-76997-inline-scopes-parenting.rs:+1:9: +1:10
-        Deinit(_1);                      // scope 0 at $DIR/issue-76997-inline-scopes-parenting.rs:+1:13: +1:33
-        StorageLive(_2);                 // scope 1 at $DIR/issue-76997-inline-scopes-parenting.rs:+2:5: +2:6
-        _2 = &_1;                        // scope 1 at $DIR/issue-76997-inline-scopes-parenting.rs:+2:5: +2:6
-        StorageLive(_3);                 // scope 1 at $DIR/issue-76997-inline-scopes-parenting.rs:+2:5: +2:10
-        StorageLive(_4);                 // scope 1 at $DIR/issue-76997-inline-scopes-parenting.rs:+2:7: +2:9
-        Deinit(_4);                      // scope 1 at $DIR/issue-76997-inline-scopes-parenting.rs:+2:7: +2:9
-        Deinit(_3);                      // scope 1 at $DIR/issue-76997-inline-scopes-parenting.rs:+2:5: +2:10
-        (_3.0: ()) = move _4;            // scope 1 at $DIR/issue-76997-inline-scopes-parenting.rs:+2:5: +2:10
-        StorageLive(_5);                 // scope 1 at $DIR/issue-76997-inline-scopes-parenting.rs:+2:5: +2:10
-        _5 = move (_3.0: ());            // scope 1 at $DIR/issue-76997-inline-scopes-parenting.rs:+2:5: +2:10
-        StorageLive(_6);                 // scope 2 at $DIR/issue-76997-inline-scopes-parenting.rs:+1:23: +1:24
-        StorageDead(_6);                 // scope 2 at $DIR/issue-76997-inline-scopes-parenting.rs:+1:32: +1:33
-        StorageDead(_5);                 // scope 1 at $DIR/issue-76997-inline-scopes-parenting.rs:+2:5: +2:10
-        StorageDead(_4);                 // scope 1 at $DIR/issue-76997-inline-scopes-parenting.rs:+2:9: +2:10
-        StorageDead(_3);                 // scope 1 at $DIR/issue-76997-inline-scopes-parenting.rs:+2:9: +2:10
-        StorageDead(_2);                 // scope 1 at $DIR/issue-76997-inline-scopes-parenting.rs:+2:9: +2:10
-        StorageDead(_1);                 // scope 0 at $DIR/issue-76997-inline-scopes-parenting.rs:+3:1: +3:2
-        return;                          // scope 0 at $DIR/issue-76997-inline-scopes-parenting.rs:+3:2: +3:2
+        StorageLive(_1);                 // scope 0 at $DIR/issue_76997_inline_scopes_parenting.rs:+1:9: +1:10
+        Deinit(_1);                      // scope 0 at $DIR/issue_76997_inline_scopes_parenting.rs:+1:13: +1:33
+        StorageLive(_2);                 // scope 1 at $DIR/issue_76997_inline_scopes_parenting.rs:+2:5: +2:6
+        _2 = &_1;                        // scope 1 at $DIR/issue_76997_inline_scopes_parenting.rs:+2:5: +2:6
+        StorageLive(_3);                 // scope 1 at $DIR/issue_76997_inline_scopes_parenting.rs:+2:5: +2:10
+        StorageLive(_4);                 // scope 1 at $DIR/issue_76997_inline_scopes_parenting.rs:+2:7: +2:9
+        Deinit(_4);                      // scope 1 at $DIR/issue_76997_inline_scopes_parenting.rs:+2:7: +2:9
+        Deinit(_3);                      // scope 1 at $DIR/issue_76997_inline_scopes_parenting.rs:+2:5: +2:10
+        (_3.0: ()) = move _4;            // scope 1 at $DIR/issue_76997_inline_scopes_parenting.rs:+2:5: +2:10
+        StorageLive(_5);                 // scope 1 at $DIR/issue_76997_inline_scopes_parenting.rs:+2:5: +2:10
+        _5 = move (_3.0: ());            // scope 1 at $DIR/issue_76997_inline_scopes_parenting.rs:+2:5: +2:10
+        StorageLive(_6);                 // scope 2 at $DIR/issue_76997_inline_scopes_parenting.rs:+1:23: +1:24
+        StorageDead(_6);                 // scope 2 at $DIR/issue_76997_inline_scopes_parenting.rs:+1:32: +1:33
+        StorageDead(_5);                 // scope 1 at $DIR/issue_76997_inline_scopes_parenting.rs:+2:5: +2:10
+        StorageDead(_4);                 // scope 1 at $DIR/issue_76997_inline_scopes_parenting.rs:+2:9: +2:10
+        StorageDead(_3);                 // scope 1 at $DIR/issue_76997_inline_scopes_parenting.rs:+2:9: +2:10
+        StorageDead(_2);                 // scope 1 at $DIR/issue_76997_inline_scopes_parenting.rs:+2:9: +2:10
+        StorageDead(_1);                 // scope 0 at $DIR/issue_76997_inline_scopes_parenting.rs:+3:1: +3:2
+        return;                          // scope 0 at $DIR/issue_76997_inline_scopes_parenting.rs:+3:2: +3:2
     }
 }
diff --git a/src/test/mir-opt/inline/issue-76997-inline-scopes-parenting.rs b/src/test/mir-opt/inline/issue_76997_inline_scopes_parenting.rs
similarity index 100%
rename from src/test/mir-opt/inline/issue-76997-inline-scopes-parenting.rs
rename to src/test/mir-opt/inline/issue_76997_inline_scopes_parenting.rs
diff --git a/src/test/mir-opt/inline/issue_78442.bar.Inline.diff b/src/test/mir-opt/inline/issue_78442.bar.Inline.diff
index 4186650dfabe0..51a98465fd9a7 100644
--- a/src/test/mir-opt/inline/issue_78442.bar.Inline.diff
+++ b/src/test/mir-opt/inline/issue_78442.bar.Inline.diff
@@ -2,67 +2,67 @@
 + // MIR for `bar` after Inline
   
   fn bar(_1: P) -> () {
-      debug _baz => _1;                    // in scope 0 at $DIR/issue-78442.rs:+2:5: +2:9
-      let mut _0: ();                      // return place in scope 0 at $DIR/issue-78442.rs:+3:3: +3:3
-      let _2: ();                          // in scope 0 at $DIR/issue-78442.rs:+4:5: +4:17
-      let mut _3: &fn() {foo};             // in scope 0 at $DIR/issue-78442.rs:+4:5: +4:15
-      let _4: fn() {foo};                  // in scope 0 at $DIR/issue-78442.rs:+4:5: +4:15
-      let mut _5: ();                      // in scope 0 at $DIR/issue-78442.rs:+4:5: +4:17
-+     scope 1 (inlined <fn() {foo} as Fn<()>>::call - shim(fn() {foo})) { // at $DIR/issue-78442.rs:11:5: 11:17
+      debug _baz => _1;                    // in scope 0 at $DIR/issue_78442.rs:+2:5: +2:9
+      let mut _0: ();                      // return place in scope 0 at $DIR/issue_78442.rs:+3:3: +3:3
+      let _2: ();                          // in scope 0 at $DIR/issue_78442.rs:+4:5: +4:17
+      let mut _3: &fn() {foo};             // in scope 0 at $DIR/issue_78442.rs:+4:5: +4:15
+      let _4: fn() {foo};                  // in scope 0 at $DIR/issue_78442.rs:+4:5: +4:15
+      let mut _5: ();                      // in scope 0 at $DIR/issue_78442.rs:+4:5: +4:17
++     scope 1 (inlined <fn() {foo} as Fn<()>>::call - shim(fn() {foo})) { // at $DIR/issue_78442.rs:11:5: 11:17
 +     }
   
       bb0: {
-          StorageLive(_2);                 // scope 0 at $DIR/issue-78442.rs:+4:5: +4:17
-          StorageLive(_3);                 // scope 0 at $DIR/issue-78442.rs:+4:5: +4:15
-          StorageLive(_4);                 // scope 0 at $DIR/issue-78442.rs:+4:5: +4:15
--         _4 = hide_foo() -> [return: bb1, unwind: bb4]; // scope 0 at $DIR/issue-78442.rs:+4:5: +4:15
-+         _4 = hide_foo() -> [return: bb1, unwind: bb3]; // scope 0 at $DIR/issue-78442.rs:+4:5: +4:15
+          StorageLive(_2);                 // scope 0 at $DIR/issue_78442.rs:+4:5: +4:17
+          StorageLive(_3);                 // scope 0 at $DIR/issue_78442.rs:+4:5: +4:15
+          StorageLive(_4);                 // scope 0 at $DIR/issue_78442.rs:+4:5: +4:15
+-         _4 = hide_foo() -> [return: bb1, unwind: bb4]; // scope 0 at $DIR/issue_78442.rs:+4:5: +4:15
++         _4 = hide_foo() -> [return: bb1, unwind: bb3]; // scope 0 at $DIR/issue_78442.rs:+4:5: +4:15
                                            // mir::Constant
-                                           // + span: $DIR/issue-78442.rs:11:5: 11:13
+                                           // + span: $DIR/issue_78442.rs:11:5: 11:13
                                            // + literal: Const { ty: fn() -> impl Fn() {hide_foo}, val: Value(<ZST>) }
       }
   
       bb1: {
-          _3 = &_4;                        // scope 0 at $DIR/issue-78442.rs:+4:5: +4:15
-          StorageLive(_5);                 // scope 0 at $DIR/issue-78442.rs:+4:5: +4:17
-          Deinit(_5);                      // scope 0 at $DIR/issue-78442.rs:+4:5: +4:17
--         _2 = <fn() {foo} as Fn<()>>::call(move _3, move _5) -> [return: bb2, unwind: bb4]; // scope 0 at $DIR/issue-78442.rs:+4:5: +4:17
+          _3 = &_4;                        // scope 0 at $DIR/issue_78442.rs:+4:5: +4:15
+          StorageLive(_5);                 // scope 0 at $DIR/issue_78442.rs:+4:5: +4:17
+          Deinit(_5);                      // scope 0 at $DIR/issue_78442.rs:+4:5: +4:17
+-         _2 = <fn() {foo} as Fn<()>>::call(move _3, move _5) -> [return: bb2, unwind: bb4]; // scope 0 at $DIR/issue_78442.rs:+4:5: +4:17
 -                                          // mir::Constant
--                                          // + span: $DIR/issue-78442.rs:11:5: 11:15
+-                                          // + span: $DIR/issue_78442.rs:11:5: 11:15
 -                                          // + literal: Const { ty: for<'a> extern "rust-call" fn(&'a fn() {foo}, ()) -> <fn() {foo} as FnOnce<()>>::Output {<fn() {foo} as Fn<()>>::call}, val: Value(<ZST>) }
 +         _2 = move (*_3)() -> [return: bb5, unwind: bb3]; // scope 1 at $SRC_DIR/core/src/ops/function.rs:LL:COL
       }
   
       bb2: {
--         StorageDead(_5);                 // scope 0 at $DIR/issue-78442.rs:+4:16: +4:17
--         StorageDead(_3);                 // scope 0 at $DIR/issue-78442.rs:+4:16: +4:17
--         StorageDead(_4);                 // scope 0 at $DIR/issue-78442.rs:+4:17: +4:18
--         StorageDead(_2);                 // scope 0 at $DIR/issue-78442.rs:+4:17: +4:18
--         _0 = const ();                   // scope 0 at $DIR/issue-78442.rs:+3:3: +5:2
--         drop(_1) -> [return: bb3, unwind: bb5]; // scope 0 at $DIR/issue-78442.rs:+5:1: +5:2
-+         return;                          // scope 0 at $DIR/issue-78442.rs:+5:2: +5:2
+-         StorageDead(_5);                 // scope 0 at $DIR/issue_78442.rs:+4:16: +4:17
+-         StorageDead(_3);                 // scope 0 at $DIR/issue_78442.rs:+4:16: +4:17
+-         StorageDead(_4);                 // scope 0 at $DIR/issue_78442.rs:+4:17: +4:18
+-         StorageDead(_2);                 // scope 0 at $DIR/issue_78442.rs:+4:17: +4:18
+-         _0 = const ();                   // scope 0 at $DIR/issue_78442.rs:+3:3: +5:2
+-         drop(_1) -> [return: bb3, unwind: bb5]; // scope 0 at $DIR/issue_78442.rs:+5:1: +5:2
++         return;                          // scope 0 at $DIR/issue_78442.rs:+5:2: +5:2
       }
   
 -     bb3: {
--         return;                          // scope 0 at $DIR/issue-78442.rs:+5:2: +5:2
+-         return;                          // scope 0 at $DIR/issue_78442.rs:+5:2: +5:2
 +     bb3 (cleanup): {
-+         drop(_1) -> bb4;                 // scope 0 at $DIR/issue-78442.rs:+5:1: +5:2
++         drop(_1) -> bb4;                 // scope 0 at $DIR/issue_78442.rs:+5:1: +5:2
       }
   
       bb4 (cleanup): {
--         drop(_1) -> bb5;                 // scope 0 at $DIR/issue-78442.rs:+5:1: +5:2
-+         resume;                          // scope 0 at $DIR/issue-78442.rs:+0:1: +5:2
+-         drop(_1) -> bb5;                 // scope 0 at $DIR/issue_78442.rs:+5:1: +5:2
++         resume;                          // scope 0 at $DIR/issue_78442.rs:+0:1: +5:2
       }
   
 -     bb5 (cleanup): {
--         resume;                          // scope 0 at $DIR/issue-78442.rs:+0:1: +5:2
+-         resume;                          // scope 0 at $DIR/issue_78442.rs:+0:1: +5:2
 +     bb5: {
-+         StorageDead(_5);                 // scope 0 at $DIR/issue-78442.rs:+4:16: +4:17
-+         StorageDead(_3);                 // scope 0 at $DIR/issue-78442.rs:+4:16: +4:17
-+         StorageDead(_4);                 // scope 0 at $DIR/issue-78442.rs:+4:17: +4:18
-+         StorageDead(_2);                 // scope 0 at $DIR/issue-78442.rs:+4:17: +4:18
-+         _0 = const ();                   // scope 0 at $DIR/issue-78442.rs:+3:3: +5:2
-+         drop(_1) -> [return: bb2, unwind: bb4]; // scope 0 at $DIR/issue-78442.rs:+5:1: +5:2
++         StorageDead(_5);                 // scope 0 at $DIR/issue_78442.rs:+4:16: +4:17
++         StorageDead(_3);                 // scope 0 at $DIR/issue_78442.rs:+4:16: +4:17
++         StorageDead(_4);                 // scope 0 at $DIR/issue_78442.rs:+4:17: +4:18
++         StorageDead(_2);                 // scope 0 at $DIR/issue_78442.rs:+4:17: +4:18
++         _0 = const ();                   // scope 0 at $DIR/issue_78442.rs:+3:3: +5:2
++         drop(_1) -> [return: bb2, unwind: bb4]; // scope 0 at $DIR/issue_78442.rs:+5:1: +5:2
       }
   }
   
diff --git a/src/test/mir-opt/inline/issue_78442.bar.RevealAll.diff b/src/test/mir-opt/inline/issue_78442.bar.RevealAll.diff
index 24e9a3df15acd..e47466c5e8047 100644
--- a/src/test/mir-opt/inline/issue_78442.bar.RevealAll.diff
+++ b/src/test/mir-opt/inline/issue_78442.bar.RevealAll.diff
@@ -2,56 +2,56 @@
 + // MIR for `bar` after RevealAll
   
   fn bar(_1: P) -> () {
-      debug _baz => _1;                    // in scope 0 at $DIR/issue-78442.rs:+2:5: +2:9
-      let mut _0: ();                      // return place in scope 0 at $DIR/issue-78442.rs:+3:3: +3:3
-      let _2: ();                          // in scope 0 at $DIR/issue-78442.rs:+4:5: +4:17
--     let mut _3: &impl Fn();              // in scope 0 at $DIR/issue-78442.rs:+4:5: +4:15
--     let _4: impl Fn();                   // in scope 0 at $DIR/issue-78442.rs:+4:5: +4:15
-+     let mut _3: &fn() {foo};             // in scope 0 at $DIR/issue-78442.rs:+4:5: +4:15
-+     let _4: fn() {foo};                  // in scope 0 at $DIR/issue-78442.rs:+4:5: +4:15
-      let mut _5: ();                      // in scope 0 at $DIR/issue-78442.rs:+4:5: +4:17
+      debug _baz => _1;                    // in scope 0 at $DIR/issue_78442.rs:+2:5: +2:9
+      let mut _0: ();                      // return place in scope 0 at $DIR/issue_78442.rs:+3:3: +3:3
+      let _2: ();                          // in scope 0 at $DIR/issue_78442.rs:+4:5: +4:17
+-     let mut _3: &impl Fn();              // in scope 0 at $DIR/issue_78442.rs:+4:5: +4:15
+-     let _4: impl Fn();                   // in scope 0 at $DIR/issue_78442.rs:+4:5: +4:15
++     let mut _3: &fn() {foo};             // in scope 0 at $DIR/issue_78442.rs:+4:5: +4:15
++     let _4: fn() {foo};                  // in scope 0 at $DIR/issue_78442.rs:+4:5: +4:15
+      let mut _5: ();                      // in scope 0 at $DIR/issue_78442.rs:+4:5: +4:17
   
       bb0: {
-          StorageLive(_2);                 // scope 0 at $DIR/issue-78442.rs:+4:5: +4:17
-          StorageLive(_3);                 // scope 0 at $DIR/issue-78442.rs:+4:5: +4:15
-          StorageLive(_4);                 // scope 0 at $DIR/issue-78442.rs:+4:5: +4:15
-          _4 = hide_foo() -> [return: bb1, unwind: bb4]; // scope 0 at $DIR/issue-78442.rs:+4:5: +4:15
+          StorageLive(_2);                 // scope 0 at $DIR/issue_78442.rs:+4:5: +4:17
+          StorageLive(_3);                 // scope 0 at $DIR/issue_78442.rs:+4:5: +4:15
+          StorageLive(_4);                 // scope 0 at $DIR/issue_78442.rs:+4:5: +4:15
+          _4 = hide_foo() -> [return: bb1, unwind: bb4]; // scope 0 at $DIR/issue_78442.rs:+4:5: +4:15
                                            // mir::Constant
-                                           // + span: $DIR/issue-78442.rs:11:5: 11:13
+                                           // + span: $DIR/issue_78442.rs:11:5: 11:13
                                            // + literal: Const { ty: fn() -> impl Fn() {hide_foo}, val: Value(<ZST>) }
       }
   
       bb1: {
-          _3 = &_4;                        // scope 0 at $DIR/issue-78442.rs:+4:5: +4:15
-          StorageLive(_5);                 // scope 0 at $DIR/issue-78442.rs:+4:5: +4:17
-          Deinit(_5);                      // scope 0 at $DIR/issue-78442.rs:+4:5: +4:17
--         _2 = <impl Fn() as Fn<()>>::call(move _3, move _5) -> [return: bb2, unwind: bb4]; // scope 0 at $DIR/issue-78442.rs:+4:5: +4:17
-+         _2 = <fn() {foo} as Fn<()>>::call(move _3, move _5) -> [return: bb2, unwind: bb4]; // scope 0 at $DIR/issue-78442.rs:+4:5: +4:17
+          _3 = &_4;                        // scope 0 at $DIR/issue_78442.rs:+4:5: +4:15
+          StorageLive(_5);                 // scope 0 at $DIR/issue_78442.rs:+4:5: +4:17
+          Deinit(_5);                      // scope 0 at $DIR/issue_78442.rs:+4:5: +4:17
+-         _2 = <impl Fn() as Fn<()>>::call(move _3, move _5) -> [return: bb2, unwind: bb4]; // scope 0 at $DIR/issue_78442.rs:+4:5: +4:17
++         _2 = <fn() {foo} as Fn<()>>::call(move _3, move _5) -> [return: bb2, unwind: bb4]; // scope 0 at $DIR/issue_78442.rs:+4:5: +4:17
                                            // mir::Constant
-                                           // + span: $DIR/issue-78442.rs:11:5: 11:15
+                                           // + span: $DIR/issue_78442.rs:11:5: 11:15
 -                                          // + literal: Const { ty: for<'a> extern "rust-call" fn(&'a impl Fn(), ()) -> <impl Fn() as FnOnce<()>>::Output {<impl Fn() as Fn<()>>::call}, val: Value(<ZST>) }
 +                                          // + literal: Const { ty: for<'a> extern "rust-call" fn(&'a fn() {foo}, ()) -> <fn() {foo} as FnOnce<()>>::Output {<fn() {foo} as Fn<()>>::call}, val: Value(<ZST>) }
       }
   
       bb2: {
-          StorageDead(_5);                 // scope 0 at $DIR/issue-78442.rs:+4:16: +4:17
-          StorageDead(_3);                 // scope 0 at $DIR/issue-78442.rs:+4:16: +4:17
-          StorageDead(_4);                 // scope 0 at $DIR/issue-78442.rs:+4:17: +4:18
-          StorageDead(_2);                 // scope 0 at $DIR/issue-78442.rs:+4:17: +4:18
-          _0 = const ();                   // scope 0 at $DIR/issue-78442.rs:+3:3: +5:2
-          drop(_1) -> [return: bb3, unwind: bb5]; // scope 0 at $DIR/issue-78442.rs:+5:1: +5:2
+          StorageDead(_5);                 // scope 0 at $DIR/issue_78442.rs:+4:16: +4:17
+          StorageDead(_3);                 // scope 0 at $DIR/issue_78442.rs:+4:16: +4:17
+          StorageDead(_4);                 // scope 0 at $DIR/issue_78442.rs:+4:17: +4:18
+          StorageDead(_2);                 // scope 0 at $DIR/issue_78442.rs:+4:17: +4:18
+          _0 = const ();                   // scope 0 at $DIR/issue_78442.rs:+3:3: +5:2
+          drop(_1) -> [return: bb3, unwind: bb5]; // scope 0 at $DIR/issue_78442.rs:+5:1: +5:2
       }
   
       bb3: {
-          return;                          // scope 0 at $DIR/issue-78442.rs:+5:2: +5:2
+          return;                          // scope 0 at $DIR/issue_78442.rs:+5:2: +5:2
       }
   
       bb4 (cleanup): {
-          drop(_1) -> bb5;                 // scope 0 at $DIR/issue-78442.rs:+5:1: +5:2
+          drop(_1) -> bb5;                 // scope 0 at $DIR/issue_78442.rs:+5:1: +5:2
       }
   
       bb5 (cleanup): {
-          resume;                          // scope 0 at $DIR/issue-78442.rs:+0:1: +5:2
+          resume;                          // scope 0 at $DIR/issue_78442.rs:+0:1: +5:2
       }
   }
   
diff --git a/src/test/mir-opt/inline/issue-78442.rs b/src/test/mir-opt/inline/issue_78442.rs
similarity index 100%
rename from src/test/mir-opt/inline/issue-78442.rs
rename to src/test/mir-opt/inline/issue_78442.rs
diff --git a/src/test/mir-opt/inline/polymorphic-recursion.rs b/src/test/mir-opt/inline/polymorphic_recursion.rs
similarity index 100%
rename from src/test/mir-opt/inline/polymorphic-recursion.rs
rename to src/test/mir-opt/inline/polymorphic_recursion.rs
diff --git a/src/test/mir-opt/issue_101973.inner.ConstProp.diff b/src/test/mir-opt/issue_101973.inner.ConstProp.diff
index 281afe4be17ef..c24abedae927f 100644
--- a/src/test/mir-opt/issue_101973.inner.ConstProp.diff
+++ b/src/test/mir-opt/issue_101973.inner.ConstProp.diff
@@ -2,29 +2,29 @@
 + // MIR for `inner` after ConstProp
   
   fn inner(_1: u32) -> i64 {
-      debug fields => _1;                  // in scope 0 at $DIR/issue-101973.rs:+0:14: +0:20
-      let mut _0: i64;                     // return place in scope 0 at $DIR/issue-101973.rs:+0:30: +0:33
-      let mut _2: i32;                     // in scope 0 at $DIR/issue-101973.rs:+1:5: +1:65
-      let mut _3: u32;                     // in scope 0 at $DIR/issue-101973.rs:+1:5: +1:58
-      let mut _4: u32;                     // in scope 0 at $DIR/issue-101973.rs:+1:5: +1:17
-      let mut _5: u32;                     // in scope 0 at $DIR/issue-101973.rs:+1:10: +1:16
-      let mut _6: u32;                     // in scope 0 at $DIR/issue-101973.rs:+1:31: +1:57
-      let mut _7: u32;                     // in scope 0 at $DIR/issue-101973.rs:+1:31: +1:52
-      let mut _8: u32;                     // in scope 0 at $DIR/issue-101973.rs:+1:32: +1:45
-      let mut _9: u32;                     // in scope 0 at $DIR/issue-101973.rs:+1:33: +1:39
-      let mut _10: (u32, bool);            // in scope 0 at $DIR/issue-101973.rs:+1:32: +1:45
-      let mut _11: (u32, bool);            // in scope 0 at $DIR/issue-101973.rs:+1:31: +1:57
-      scope 1 (inlined imm8) {             // at $DIR/issue-101973.rs:14:5: 14:17
-          debug x => _5;                   // in scope 1 at $DIR/issue-101973.rs:5:13: 5:14
-          let mut _12: u32;                // in scope 1 at $DIR/issue-101973.rs:7:12: 7:27
-          let mut _13: u32;                // in scope 1 at $DIR/issue-101973.rs:7:12: 7:20
-          let mut _14: u32;                // in scope 1 at $DIR/issue-101973.rs:7:13: 7:14
-          let mut _15: (u32, bool);        // in scope 1 at $DIR/issue-101973.rs:7:12: 7:20
+      debug fields => _1;                  // in scope 0 at $DIR/issue_101973.rs:+0:14: +0:20
+      let mut _0: i64;                     // return place in scope 0 at $DIR/issue_101973.rs:+0:30: +0:33
+      let mut _2: i32;                     // in scope 0 at $DIR/issue_101973.rs:+1:5: +1:65
+      let mut _3: u32;                     // in scope 0 at $DIR/issue_101973.rs:+1:5: +1:58
+      let mut _4: u32;                     // in scope 0 at $DIR/issue_101973.rs:+1:5: +1:17
+      let mut _5: u32;                     // in scope 0 at $DIR/issue_101973.rs:+1:10: +1:16
+      let mut _6: u32;                     // in scope 0 at $DIR/issue_101973.rs:+1:31: +1:57
+      let mut _7: u32;                     // in scope 0 at $DIR/issue_101973.rs:+1:31: +1:52
+      let mut _8: u32;                     // in scope 0 at $DIR/issue_101973.rs:+1:32: +1:45
+      let mut _9: u32;                     // in scope 0 at $DIR/issue_101973.rs:+1:33: +1:39
+      let mut _10: (u32, bool);            // in scope 0 at $DIR/issue_101973.rs:+1:32: +1:45
+      let mut _11: (u32, bool);            // in scope 0 at $DIR/issue_101973.rs:+1:31: +1:57
+      scope 1 (inlined imm8) {             // at $DIR/issue_101973.rs:14:5: 14:17
+          debug x => _5;                   // in scope 1 at $DIR/issue_101973.rs:5:13: 5:14
+          let mut _12: u32;                // in scope 1 at $DIR/issue_101973.rs:7:12: 7:27
+          let mut _13: u32;                // in scope 1 at $DIR/issue_101973.rs:7:12: 7:20
+          let mut _14: u32;                // in scope 1 at $DIR/issue_101973.rs:7:13: 7:14
+          let mut _15: (u32, bool);        // in scope 1 at $DIR/issue_101973.rs:7:12: 7:20
           scope 2 {
-              debug out => _4;             // in scope 2 at $DIR/issue-101973.rs:6:9: 6:16
+              debug out => _4;             // in scope 2 at $DIR/issue_101973.rs:6:9: 6:16
           }
       }
-      scope 3 (inlined core::num::<impl u32>::rotate_right) { // at $DIR/issue-101973.rs:14:5: 14:58
+      scope 3 (inlined core::num::<impl u32>::rotate_right) { // at $DIR/issue_101973.rs:14:5: 14:58
           debug self => _4;                // in scope 3 at $SRC_DIR/core/src/num/uint_macros.rs:LL:COL
           debug n => _6;                   // in scope 3 at $SRC_DIR/core/src/num/uint_macros.rs:LL:COL
           let mut _16: u32;                // in scope 3 at $SRC_DIR/core/src/num/uint_macros.rs:LL:COL
@@ -32,32 +32,32 @@
       }
   
       bb0: {
-          StorageLive(_2);                 // scope 0 at $DIR/issue-101973.rs:+1:5: +1:65
-          StorageLive(_3);                 // scope 0 at $DIR/issue-101973.rs:+1:5: +1:58
-          StorageLive(_4);                 // scope 0 at $DIR/issue-101973.rs:+1:5: +1:17
-          StorageLive(_5);                 // scope 0 at $DIR/issue-101973.rs:+1:10: +1:16
-          _5 = _1;                         // scope 0 at $DIR/issue-101973.rs:+1:10: +1:16
-          _4 = const 0_u32;                // scope 1 at $DIR/issue-101973.rs:6:19: 6:23
-          StorageLive(_12);                // scope 2 at $DIR/issue-101973.rs:7:12: 7:27
-          StorageLive(_13);                // scope 2 at $DIR/issue-101973.rs:7:12: 7:20
-          StorageLive(_14);                // scope 2 at $DIR/issue-101973.rs:7:13: 7:14
-          _14 = _5;                        // scope 2 at $DIR/issue-101973.rs:7:13: 7:14
-          _15 = CheckedShr(_14, const 0_i32); // scope 2 at $DIR/issue-101973.rs:7:12: 7:20
-          assert(!move (_15.1: bool), "attempt to shift right by `{}`, which would overflow", const 0_i32) -> bb3; // scope 2 at $DIR/issue-101973.rs:7:12: 7:20
+          StorageLive(_2);                 // scope 0 at $DIR/issue_101973.rs:+1:5: +1:65
+          StorageLive(_3);                 // scope 0 at $DIR/issue_101973.rs:+1:5: +1:58
+          StorageLive(_4);                 // scope 0 at $DIR/issue_101973.rs:+1:5: +1:17
+          StorageLive(_5);                 // scope 0 at $DIR/issue_101973.rs:+1:10: +1:16
+          _5 = _1;                         // scope 0 at $DIR/issue_101973.rs:+1:10: +1:16
+          _4 = const 0_u32;                // scope 1 at $DIR/issue_101973.rs:6:19: 6:23
+          StorageLive(_12);                // scope 2 at $DIR/issue_101973.rs:7:12: 7:27
+          StorageLive(_13);                // scope 2 at $DIR/issue_101973.rs:7:12: 7:20
+          StorageLive(_14);                // scope 2 at $DIR/issue_101973.rs:7:13: 7:14
+          _14 = _5;                        // scope 2 at $DIR/issue_101973.rs:7:13: 7:14
+          _15 = CheckedShr(_14, const 0_i32); // scope 2 at $DIR/issue_101973.rs:7:12: 7:20
+          assert(!move (_15.1: bool), "attempt to shift right by `{}`, which would overflow", const 0_i32) -> bb3; // scope 2 at $DIR/issue_101973.rs:7:12: 7:20
       }
   
       bb1: {
-          _8 = move (_10.0: u32);          // scope 0 at $DIR/issue-101973.rs:+1:32: +1:45
-          StorageDead(_9);                 // scope 0 at $DIR/issue-101973.rs:+1:44: +1:45
-          _7 = BitAnd(move _8, const 15_u32); // scope 0 at $DIR/issue-101973.rs:+1:31: +1:52
-          StorageDead(_8);                 // scope 0 at $DIR/issue-101973.rs:+1:51: +1:52
-          _11 = CheckedShl(_7, const 1_i32); // scope 0 at $DIR/issue-101973.rs:+1:31: +1:57
-          assert(!move (_11.1: bool), "attempt to shift left by `{}`, which would overflow", const 1_i32) -> bb2; // scope 0 at $DIR/issue-101973.rs:+1:31: +1:57
+          _8 = move (_10.0: u32);          // scope 0 at $DIR/issue_101973.rs:+1:32: +1:45
+          StorageDead(_9);                 // scope 0 at $DIR/issue_101973.rs:+1:44: +1:45
+          _7 = BitAnd(move _8, const 15_u32); // scope 0 at $DIR/issue_101973.rs:+1:31: +1:52
+          StorageDead(_8);                 // scope 0 at $DIR/issue_101973.rs:+1:51: +1:52
+          _11 = CheckedShl(_7, const 1_i32); // scope 0 at $DIR/issue_101973.rs:+1:31: +1:57
+          assert(!move (_11.1: bool), "attempt to shift left by `{}`, which would overflow", const 1_i32) -> bb2; // scope 0 at $DIR/issue_101973.rs:+1:31: +1:57
       }
   
       bb2: {
-          _6 = move (_11.0: u32);          // scope 0 at $DIR/issue-101973.rs:+1:31: +1:57
-          StorageDead(_7);                 // scope 0 at $DIR/issue-101973.rs:+1:56: +1:57
+          _6 = move (_11.0: u32);          // scope 0 at $DIR/issue_101973.rs:+1:31: +1:57
+          StorageDead(_7);                 // scope 0 at $DIR/issue_101973.rs:+1:56: +1:57
           StorageLive(_16);                // scope 3 at $SRC_DIR/core/src/num/uint_macros.rs:LL:COL
           _16 = _4;                        // scope 3 at $SRC_DIR/core/src/num/uint_macros.rs:LL:COL
           StorageLive(_17);                // scope 3 at $SRC_DIR/core/src/num/uint_macros.rs:LL:COL
@@ -69,32 +69,32 @@
       }
   
       bb3: {
-          _13 = move (_15.0: u32);         // scope 2 at $DIR/issue-101973.rs:7:12: 7:20
-          StorageDead(_14);                // scope 2 at $DIR/issue-101973.rs:7:19: 7:20
-          _12 = BitAnd(move _13, const 255_u32); // scope 2 at $DIR/issue-101973.rs:7:12: 7:27
-          StorageDead(_13);                // scope 2 at $DIR/issue-101973.rs:7:26: 7:27
-          _4 = BitOr(_4, move _12);        // scope 2 at $DIR/issue-101973.rs:7:5: 7:27
-          StorageDead(_12);                // scope 2 at $DIR/issue-101973.rs:7:26: 7:27
-          StorageDead(_5);                 // scope 0 at $DIR/issue-101973.rs:+1:16: +1:17
-          StorageLive(_6);                 // scope 0 at $DIR/issue-101973.rs:+1:31: +1:57
-          StorageLive(_7);                 // scope 0 at $DIR/issue-101973.rs:+1:31: +1:52
-          StorageLive(_8);                 // scope 0 at $DIR/issue-101973.rs:+1:32: +1:45
-          StorageLive(_9);                 // scope 0 at $DIR/issue-101973.rs:+1:33: +1:39
-          _9 = _1;                         // scope 0 at $DIR/issue-101973.rs:+1:33: +1:39
-          _10 = CheckedShr(_9, const 8_i32); // scope 0 at $DIR/issue-101973.rs:+1:32: +1:45
-          assert(!move (_10.1: bool), "attempt to shift right by `{}`, which would overflow", const 8_i32) -> bb1; // scope 0 at $DIR/issue-101973.rs:+1:32: +1:45
+          _13 = move (_15.0: u32);         // scope 2 at $DIR/issue_101973.rs:7:12: 7:20
+          StorageDead(_14);                // scope 2 at $DIR/issue_101973.rs:7:19: 7:20
+          _12 = BitAnd(move _13, const 255_u32); // scope 2 at $DIR/issue_101973.rs:7:12: 7:27
+          StorageDead(_13);                // scope 2 at $DIR/issue_101973.rs:7:26: 7:27
+          _4 = BitOr(_4, move _12);        // scope 2 at $DIR/issue_101973.rs:7:5: 7:27
+          StorageDead(_12);                // scope 2 at $DIR/issue_101973.rs:7:26: 7:27
+          StorageDead(_5);                 // scope 0 at $DIR/issue_101973.rs:+1:16: +1:17
+          StorageLive(_6);                 // scope 0 at $DIR/issue_101973.rs:+1:31: +1:57
+          StorageLive(_7);                 // scope 0 at $DIR/issue_101973.rs:+1:31: +1:52
+          StorageLive(_8);                 // scope 0 at $DIR/issue_101973.rs:+1:32: +1:45
+          StorageLive(_9);                 // scope 0 at $DIR/issue_101973.rs:+1:33: +1:39
+          _9 = _1;                         // scope 0 at $DIR/issue_101973.rs:+1:33: +1:39
+          _10 = CheckedShr(_9, const 8_i32); // scope 0 at $DIR/issue_101973.rs:+1:32: +1:45
+          assert(!move (_10.1: bool), "attempt to shift right by `{}`, which would overflow", const 8_i32) -> bb1; // scope 0 at $DIR/issue_101973.rs:+1:32: +1:45
       }
   
       bb4: {
           StorageDead(_17);                // scope 3 at $SRC_DIR/core/src/num/uint_macros.rs:LL:COL
           StorageDead(_16);                // scope 3 at $SRC_DIR/core/src/num/uint_macros.rs:LL:COL
-          StorageDead(_6);                 // scope 0 at $DIR/issue-101973.rs:+1:57: +1:58
-          StorageDead(_4);                 // scope 0 at $DIR/issue-101973.rs:+1:57: +1:58
-          _2 = move _3 as i32 (IntToInt);  // scope 0 at $DIR/issue-101973.rs:+1:5: +1:65
-          StorageDead(_3);                 // scope 0 at $DIR/issue-101973.rs:+1:64: +1:65
-          _0 = move _2 as i64 (IntToInt);  // scope 0 at $DIR/issue-101973.rs:+1:5: +1:72
-          StorageDead(_2);                 // scope 0 at $DIR/issue-101973.rs:+1:71: +1:72
-          return;                          // scope 0 at $DIR/issue-101973.rs:+2:2: +2:2
+          StorageDead(_6);                 // scope 0 at $DIR/issue_101973.rs:+1:57: +1:58
+          StorageDead(_4);                 // scope 0 at $DIR/issue_101973.rs:+1:57: +1:58
+          _2 = move _3 as i32 (IntToInt);  // scope 0 at $DIR/issue_101973.rs:+1:5: +1:65
+          StorageDead(_3);                 // scope 0 at $DIR/issue_101973.rs:+1:64: +1:65
+          _0 = move _2 as i64 (IntToInt);  // scope 0 at $DIR/issue_101973.rs:+1:5: +1:72
+          StorageDead(_2);                 // scope 0 at $DIR/issue_101973.rs:+1:71: +1:72
+          return;                          // scope 0 at $DIR/issue_101973.rs:+2:2: +2:2
       }
   }
   
diff --git a/src/test/mir-opt/issue-101973.rs b/src/test/mir-opt/issue_101973.rs
similarity index 100%
rename from src/test/mir-opt/issue-101973.rs
rename to src/test/mir-opt/issue_101973.rs
diff --git a/src/test/mir-opt/issue_38669.main.SimplifyCfg-initial.after.mir b/src/test/mir-opt/issue_38669.main.SimplifyCfg-initial.after.mir
index b13987f7360e6..82210081832c8 100644
--- a/src/test/mir-opt/issue_38669.main.SimplifyCfg-initial.after.mir
+++ b/src/test/mir-opt/issue_38669.main.SimplifyCfg-initial.after.mir
@@ -1,52 +1,52 @@
 // MIR for `main` after SimplifyCfg-initial
 
 fn main() -> () {
-    let mut _0: ();                      // return place in scope 0 at $DIR/issue-38669.rs:+0:11: +0:11
-    let mut _1: bool;                    // in scope 0 at $DIR/issue-38669.rs:+1:9: +1:25
-    let mut _2: ();                      // in scope 0 at $DIR/issue-38669.rs:+0:1: +8:2
-    let _3: ();                          // in scope 0 at $DIR/issue-38669.rs:+3:9: +5:10
-    let mut _4: bool;                    // in scope 0 at $DIR/issue-38669.rs:+3:12: +3:24
-    let mut _5: !;                       // in scope 0 at $DIR/issue-38669.rs:+3:25: +5:10
+    let mut _0: ();                      // return place in scope 0 at $DIR/issue_38669.rs:+0:11: +0:11
+    let mut _1: bool;                    // in scope 0 at $DIR/issue_38669.rs:+1:9: +1:25
+    let mut _2: ();                      // in scope 0 at $DIR/issue_38669.rs:+0:1: +8:2
+    let _3: ();                          // in scope 0 at $DIR/issue_38669.rs:+3:9: +5:10
+    let mut _4: bool;                    // in scope 0 at $DIR/issue_38669.rs:+3:12: +3:24
+    let mut _5: !;                       // in scope 0 at $DIR/issue_38669.rs:+3:25: +5:10
     scope 1 {
-        debug should_break => _1;        // in scope 1 at $DIR/issue-38669.rs:+1:9: +1:25
+        debug should_break => _1;        // in scope 1 at $DIR/issue_38669.rs:+1:9: +1:25
     }
 
     bb0: {
-        StorageLive(_1);                 // scope 0 at $DIR/issue-38669.rs:+1:9: +1:25
-        _1 = const false;                // scope 0 at $DIR/issue-38669.rs:+1:28: +1:33
-        FakeRead(ForLet(None), _1);      // scope 0 at $DIR/issue-38669.rs:+1:9: +1:25
-        goto -> bb1;                     // scope 1 at $DIR/issue-38669.rs:+2:5: +7:6
+        StorageLive(_1);                 // scope 0 at $DIR/issue_38669.rs:+1:9: +1:25
+        _1 = const false;                // scope 0 at $DIR/issue_38669.rs:+1:28: +1:33
+        FakeRead(ForLet(None), _1);      // scope 0 at $DIR/issue_38669.rs:+1:9: +1:25
+        goto -> bb1;                     // scope 1 at $DIR/issue_38669.rs:+2:5: +7:6
     }
 
     bb1: {
-        falseUnwind -> [real: bb2, cleanup: bb5]; // scope 1 at $DIR/issue-38669.rs:+2:5: +7:6
+        falseUnwind -> [real: bb2, cleanup: bb5]; // scope 1 at $DIR/issue_38669.rs:+2:5: +7:6
     }
 
     bb2: {
-        StorageLive(_3);                 // scope 1 at $DIR/issue-38669.rs:+3:9: +5:10
-        StorageLive(_4);                 // scope 1 at $DIR/issue-38669.rs:+3:12: +3:24
-        _4 = _1;                         // scope 1 at $DIR/issue-38669.rs:+3:12: +3:24
-        switchInt(move _4) -> [false: bb4, otherwise: bb3]; // scope 1 at $DIR/issue-38669.rs:+3:12: +3:24
+        StorageLive(_3);                 // scope 1 at $DIR/issue_38669.rs:+3:9: +5:10
+        StorageLive(_4);                 // scope 1 at $DIR/issue_38669.rs:+3:12: +3:24
+        _4 = _1;                         // scope 1 at $DIR/issue_38669.rs:+3:12: +3:24
+        switchInt(move _4) -> [false: bb4, otherwise: bb3]; // scope 1 at $DIR/issue_38669.rs:+3:12: +3:24
     }
 
     bb3: {
-        _0 = const ();                   // scope 1 at $DIR/issue-38669.rs:+4:13: +4:18
-        StorageDead(_4);                 // scope 1 at $DIR/issue-38669.rs:+5:9: +5:10
-        StorageDead(_3);                 // scope 1 at $DIR/issue-38669.rs:+5:9: +5:10
-        StorageDead(_1);                 // scope 0 at $DIR/issue-38669.rs:+8:1: +8:2
-        return;                          // scope 0 at $DIR/issue-38669.rs:+8:2: +8:2
+        _0 = const ();                   // scope 1 at $DIR/issue_38669.rs:+4:13: +4:18
+        StorageDead(_4);                 // scope 1 at $DIR/issue_38669.rs:+5:9: +5:10
+        StorageDead(_3);                 // scope 1 at $DIR/issue_38669.rs:+5:9: +5:10
+        StorageDead(_1);                 // scope 0 at $DIR/issue_38669.rs:+8:1: +8:2
+        return;                          // scope 0 at $DIR/issue_38669.rs:+8:2: +8:2
     }
 
     bb4: {
-        _3 = const ();                   // scope 1 at $DIR/issue-38669.rs:+5:10: +5:10
-        StorageDead(_4);                 // scope 1 at $DIR/issue-38669.rs:+5:9: +5:10
-        StorageDead(_3);                 // scope 1 at $DIR/issue-38669.rs:+5:9: +5:10
-        _1 = const true;                 // scope 1 at $DIR/issue-38669.rs:+6:9: +6:28
-        _2 = const ();                   // scope 1 at $DIR/issue-38669.rs:+2:10: +7:6
-        goto -> bb1;                     // scope 1 at $DIR/issue-38669.rs:+2:5: +7:6
+        _3 = const ();                   // scope 1 at $DIR/issue_38669.rs:+5:10: +5:10
+        StorageDead(_4);                 // scope 1 at $DIR/issue_38669.rs:+5:9: +5:10
+        StorageDead(_3);                 // scope 1 at $DIR/issue_38669.rs:+5:9: +5:10
+        _1 = const true;                 // scope 1 at $DIR/issue_38669.rs:+6:9: +6:28
+        _2 = const ();                   // scope 1 at $DIR/issue_38669.rs:+2:10: +7:6
+        goto -> bb1;                     // scope 1 at $DIR/issue_38669.rs:+2:5: +7:6
     }
 
     bb5 (cleanup): {
-        resume;                          // scope 0 at $DIR/issue-38669.rs:+0:1: +8:2
+        resume;                          // scope 0 at $DIR/issue_38669.rs:+0:1: +8:2
     }
 }
diff --git a/src/test/mir-opt/issue-38669.rs b/src/test/mir-opt/issue_38669.rs
similarity index 100%
rename from src/test/mir-opt/issue-38669.rs
rename to src/test/mir-opt/issue_38669.rs
diff --git a/src/test/mir-opt/issue_41110.main.ElaborateDrops.after.mir b/src/test/mir-opt/issue_41110.main.ElaborateDrops.after.mir
index 1d7cb91d6a7e8..c573ad5a8e4a4 100644
--- a/src/test/mir-opt/issue_41110.main.ElaborateDrops.after.mir
+++ b/src/test/mir-opt/issue_41110.main.ElaborateDrops.after.mir
@@ -1,70 +1,70 @@
 // MIR for `main` after ElaborateDrops
 
 fn main() -> () {
-    let mut _0: ();                      // return place in scope 0 at $DIR/issue-41110.rs:+0:11: +0:11
-    let _1: ();                          // in scope 0 at $DIR/issue-41110.rs:+1:9: +1:10
-    let mut _2: S;                       // in scope 0 at $DIR/issue-41110.rs:+1:13: +1:14
-    let mut _3: S;                       // in scope 0 at $DIR/issue-41110.rs:+1:21: +1:27
-    let mut _4: S;                       // in scope 0 at $DIR/issue-41110.rs:+1:21: +1:22
-    let mut _5: bool;                    // in scope 0 at $DIR/issue-41110.rs:+1:27: +1:28
+    let mut _0: ();                      // return place in scope 0 at $DIR/issue_41110.rs:+0:11: +0:11
+    let _1: ();                          // in scope 0 at $DIR/issue_41110.rs:+1:9: +1:10
+    let mut _2: S;                       // in scope 0 at $DIR/issue_41110.rs:+1:13: +1:14
+    let mut _3: S;                       // in scope 0 at $DIR/issue_41110.rs:+1:21: +1:27
+    let mut _4: S;                       // in scope 0 at $DIR/issue_41110.rs:+1:21: +1:22
+    let mut _5: bool;                    // in scope 0 at $DIR/issue_41110.rs:+1:27: +1:28
     scope 1 {
-        debug x => _1;                   // in scope 1 at $DIR/issue-41110.rs:+1:9: +1:10
+        debug x => _1;                   // in scope 1 at $DIR/issue_41110.rs:+1:9: +1:10
     }
 
     bb0: {
-        _5 = const false;                // scope 0 at $DIR/issue-41110.rs:+1:9: +1:10
-        StorageLive(_1);                 // scope 0 at $DIR/issue-41110.rs:+1:9: +1:10
-        StorageLive(_2);                 // scope 0 at $DIR/issue-41110.rs:+1:13: +1:14
-        _5 = const true;                 // scope 0 at $DIR/issue-41110.rs:+1:13: +1:14
-        _2 = S;                          // scope 0 at $DIR/issue-41110.rs:+1:13: +1:14
-        StorageLive(_3);                 // scope 0 at $DIR/issue-41110.rs:+1:21: +1:27
-        StorageLive(_4);                 // scope 0 at $DIR/issue-41110.rs:+1:21: +1:22
-        _4 = S;                          // scope 0 at $DIR/issue-41110.rs:+1:21: +1:22
-        _3 = S::id(move _4) -> [return: bb1, unwind: bb4]; // scope 0 at $DIR/issue-41110.rs:+1:21: +1:27
+        _5 = const false;                // scope 0 at $DIR/issue_41110.rs:+1:9: +1:10
+        StorageLive(_1);                 // scope 0 at $DIR/issue_41110.rs:+1:9: +1:10
+        StorageLive(_2);                 // scope 0 at $DIR/issue_41110.rs:+1:13: +1:14
+        _5 = const true;                 // scope 0 at $DIR/issue_41110.rs:+1:13: +1:14
+        _2 = S;                          // scope 0 at $DIR/issue_41110.rs:+1:13: +1:14
+        StorageLive(_3);                 // scope 0 at $DIR/issue_41110.rs:+1:21: +1:27
+        StorageLive(_4);                 // scope 0 at $DIR/issue_41110.rs:+1:21: +1:22
+        _4 = S;                          // scope 0 at $DIR/issue_41110.rs:+1:21: +1:22
+        _3 = S::id(move _4) -> [return: bb1, unwind: bb4]; // scope 0 at $DIR/issue_41110.rs:+1:21: +1:27
                                          // mir::Constant
-                                         // + span: $DIR/issue-41110.rs:8:23: 8:25
+                                         // + span: $DIR/issue_41110.rs:8:23: 8:25
                                          // + literal: Const { ty: fn(S) -> S {S::id}, val: Value(<ZST>) }
     }
 
     bb1: {
-        StorageDead(_4);                 // scope 0 at $DIR/issue-41110.rs:+1:26: +1:27
-        _5 = const false;                // scope 0 at $DIR/issue-41110.rs:+1:13: +1:28
-        _1 = S::other(move _2, move _3) -> [return: bb2, unwind: bb3]; // scope 0 at $DIR/issue-41110.rs:+1:13: +1:28
+        StorageDead(_4);                 // scope 0 at $DIR/issue_41110.rs:+1:26: +1:27
+        _5 = const false;                // scope 0 at $DIR/issue_41110.rs:+1:13: +1:28
+        _1 = S::other(move _2, move _3) -> [return: bb2, unwind: bb3]; // scope 0 at $DIR/issue_41110.rs:+1:13: +1:28
                                          // mir::Constant
-                                         // + span: $DIR/issue-41110.rs:8:15: 8:20
+                                         // + span: $DIR/issue_41110.rs:8:15: 8:20
                                          // + literal: Const { ty: fn(S, S) {S::other}, val: Value(<ZST>) }
     }
 
     bb2: {
-        StorageDead(_3);                 // scope 0 at $DIR/issue-41110.rs:+1:27: +1:28
-        _5 = const false;                // scope 0 at $DIR/issue-41110.rs:+1:27: +1:28
-        StorageDead(_2);                 // scope 0 at $DIR/issue-41110.rs:+1:27: +1:28
-        _0 = const ();                   // scope 0 at $DIR/issue-41110.rs:+0:11: +2:2
-        StorageDead(_1);                 // scope 0 at $DIR/issue-41110.rs:+2:1: +2:2
-        return;                          // scope 0 at $DIR/issue-41110.rs:+2:2: +2:2
+        StorageDead(_3);                 // scope 0 at $DIR/issue_41110.rs:+1:27: +1:28
+        _5 = const false;                // scope 0 at $DIR/issue_41110.rs:+1:27: +1:28
+        StorageDead(_2);                 // scope 0 at $DIR/issue_41110.rs:+1:27: +1:28
+        _0 = const ();                   // scope 0 at $DIR/issue_41110.rs:+0:11: +2:2
+        StorageDead(_1);                 // scope 0 at $DIR/issue_41110.rs:+2:1: +2:2
+        return;                          // scope 0 at $DIR/issue_41110.rs:+2:2: +2:2
     }
 
     bb3 (cleanup): {
-        goto -> bb5;                     // scope 0 at $DIR/issue-41110.rs:+1:27: +1:28
+        goto -> bb5;                     // scope 0 at $DIR/issue_41110.rs:+1:27: +1:28
     }
 
     bb4 (cleanup): {
-        goto -> bb5;                     // scope 0 at $DIR/issue-41110.rs:+1:26: +1:27
+        goto -> bb5;                     // scope 0 at $DIR/issue_41110.rs:+1:26: +1:27
     }
 
     bb5 (cleanup): {
-        goto -> bb8;                     // scope 0 at $DIR/issue-41110.rs:+1:27: +1:28
+        goto -> bb8;                     // scope 0 at $DIR/issue_41110.rs:+1:27: +1:28
     }
 
     bb6 (cleanup): {
-        resume;                          // scope 0 at $DIR/issue-41110.rs:+0:1: +2:2
+        resume;                          // scope 0 at $DIR/issue_41110.rs:+0:1: +2:2
     }
 
     bb7 (cleanup): {
-        drop(_2) -> bb6;                 // scope 0 at $DIR/issue-41110.rs:+1:27: +1:28
+        drop(_2) -> bb6;                 // scope 0 at $DIR/issue_41110.rs:+1:27: +1:28
     }
 
     bb8 (cleanup): {
-        switchInt(_5) -> [false: bb6, otherwise: bb7]; // scope 0 at $DIR/issue-41110.rs:+1:27: +1:28
+        switchInt(_5) -> [false: bb6, otherwise: bb7]; // scope 0 at $DIR/issue_41110.rs:+1:27: +1:28
     }
 }
diff --git a/src/test/mir-opt/issue-41110.rs b/src/test/mir-opt/issue_41110.rs
similarity index 100%
rename from src/test/mir-opt/issue-41110.rs
rename to src/test/mir-opt/issue_41110.rs
diff --git a/src/test/mir-opt/issue_41110.test.ElaborateDrops.after.mir b/src/test/mir-opt/issue_41110.test.ElaborateDrops.after.mir
index b0e3496b2c8eb..470b032328184 100644
--- a/src/test/mir-opt/issue_41110.test.ElaborateDrops.after.mir
+++ b/src/test/mir-opt/issue_41110.test.ElaborateDrops.after.mir
@@ -1,101 +1,101 @@
 // MIR for `test` after ElaborateDrops
 
 fn test() -> () {
-    let mut _0: ();                      // return place in scope 0 at $DIR/issue-41110.rs:+0:15: +0:15
-    let _1: S;                           // in scope 0 at $DIR/issue-41110.rs:+1:9: +1:10
-    let _3: ();                          // in scope 0 at $DIR/issue-41110.rs:+3:5: +3:12
-    let mut _4: S;                       // in scope 0 at $DIR/issue-41110.rs:+3:10: +3:11
-    let mut _5: S;                       // in scope 0 at $DIR/issue-41110.rs:+4:9: +4:10
-    let mut _6: bool;                    // in scope 0 at $DIR/issue-41110.rs:+5:1: +5:2
+    let mut _0: ();                      // return place in scope 0 at $DIR/issue_41110.rs:+0:15: +0:15
+    let _1: S;                           // in scope 0 at $DIR/issue_41110.rs:+1:9: +1:10
+    let _3: ();                          // in scope 0 at $DIR/issue_41110.rs:+3:5: +3:12
+    let mut _4: S;                       // in scope 0 at $DIR/issue_41110.rs:+3:10: +3:11
+    let mut _5: S;                       // in scope 0 at $DIR/issue_41110.rs:+4:9: +4:10
+    let mut _6: bool;                    // in scope 0 at $DIR/issue_41110.rs:+5:1: +5:2
     scope 1 {
-        debug u => _1;                   // in scope 1 at $DIR/issue-41110.rs:+1:9: +1:10
-        let mut _2: S;                   // in scope 1 at $DIR/issue-41110.rs:+2:9: +2:14
+        debug u => _1;                   // in scope 1 at $DIR/issue_41110.rs:+1:9: +1:10
+        let mut _2: S;                   // in scope 1 at $DIR/issue_41110.rs:+2:9: +2:14
         scope 2 {
-            debug v => _2;               // in scope 2 at $DIR/issue-41110.rs:+2:9: +2:14
+            debug v => _2;               // in scope 2 at $DIR/issue_41110.rs:+2:9: +2:14
         }
     }
 
     bb0: {
-        _6 = const false;                // scope 0 at $DIR/issue-41110.rs:+1:9: +1:10
-        StorageLive(_1);                 // scope 0 at $DIR/issue-41110.rs:+1:9: +1:10
-        _6 = const true;                 // scope 0 at $DIR/issue-41110.rs:+1:13: +1:14
-        _1 = S;                          // scope 0 at $DIR/issue-41110.rs:+1:13: +1:14
-        StorageLive(_2);                 // scope 1 at $DIR/issue-41110.rs:+2:9: +2:14
-        _2 = S;                          // scope 1 at $DIR/issue-41110.rs:+2:17: +2:18
-        StorageLive(_3);                 // scope 2 at $DIR/issue-41110.rs:+3:5: +3:12
-        StorageLive(_4);                 // scope 2 at $DIR/issue-41110.rs:+3:10: +3:11
-        _4 = move _2;                    // scope 2 at $DIR/issue-41110.rs:+3:10: +3:11
-        _3 = std::mem::drop::<S>(move _4) -> [return: bb1, unwind: bb7]; // scope 2 at $DIR/issue-41110.rs:+3:5: +3:12
+        _6 = const false;                // scope 0 at $DIR/issue_41110.rs:+1:9: +1:10
+        StorageLive(_1);                 // scope 0 at $DIR/issue_41110.rs:+1:9: +1:10
+        _6 = const true;                 // scope 0 at $DIR/issue_41110.rs:+1:13: +1:14
+        _1 = S;                          // scope 0 at $DIR/issue_41110.rs:+1:13: +1:14
+        StorageLive(_2);                 // scope 1 at $DIR/issue_41110.rs:+2:9: +2:14
+        _2 = S;                          // scope 1 at $DIR/issue_41110.rs:+2:17: +2:18
+        StorageLive(_3);                 // scope 2 at $DIR/issue_41110.rs:+3:5: +3:12
+        StorageLive(_4);                 // scope 2 at $DIR/issue_41110.rs:+3:10: +3:11
+        _4 = move _2;                    // scope 2 at $DIR/issue_41110.rs:+3:10: +3:11
+        _3 = std::mem::drop::<S>(move _4) -> [return: bb1, unwind: bb7]; // scope 2 at $DIR/issue_41110.rs:+3:5: +3:12
                                          // mir::Constant
-                                         // + span: $DIR/issue-41110.rs:17:5: 17:9
+                                         // + span: $DIR/issue_41110.rs:17:5: 17:9
                                          // + literal: Const { ty: fn(S) {std::mem::drop::<S>}, val: Value(<ZST>) }
     }
 
     bb1: {
-        StorageDead(_4);                 // scope 2 at $DIR/issue-41110.rs:+3:11: +3:12
-        StorageDead(_3);                 // scope 2 at $DIR/issue-41110.rs:+3:12: +3:13
-        StorageLive(_5);                 // scope 2 at $DIR/issue-41110.rs:+4:9: +4:10
-        _6 = const false;                // scope 2 at $DIR/issue-41110.rs:+4:9: +4:10
-        _5 = move _1;                    // scope 2 at $DIR/issue-41110.rs:+4:9: +4:10
-        goto -> bb12;                    // scope 2 at $DIR/issue-41110.rs:+4:5: +4:6
+        StorageDead(_4);                 // scope 2 at $DIR/issue_41110.rs:+3:11: +3:12
+        StorageDead(_3);                 // scope 2 at $DIR/issue_41110.rs:+3:12: +3:13
+        StorageLive(_5);                 // scope 2 at $DIR/issue_41110.rs:+4:9: +4:10
+        _6 = const false;                // scope 2 at $DIR/issue_41110.rs:+4:9: +4:10
+        _5 = move _1;                    // scope 2 at $DIR/issue_41110.rs:+4:9: +4:10
+        goto -> bb12;                    // scope 2 at $DIR/issue_41110.rs:+4:5: +4:6
     }
 
     bb2: {
-        goto -> bb3;                     // scope 2 at $DIR/issue-41110.rs:+4:9: +4:10
+        goto -> bb3;                     // scope 2 at $DIR/issue_41110.rs:+4:9: +4:10
     }
 
     bb3: {
-        StorageDead(_5);                 // scope 2 at $DIR/issue-41110.rs:+4:9: +4:10
-        _0 = const ();                   // scope 0 at $DIR/issue-41110.rs:+0:15: +5:2
-        drop(_2) -> [return: bb4, unwind: bb9]; // scope 1 at $DIR/issue-41110.rs:+5:1: +5:2
+        StorageDead(_5);                 // scope 2 at $DIR/issue_41110.rs:+4:9: +4:10
+        _0 = const ();                   // scope 0 at $DIR/issue_41110.rs:+0:15: +5:2
+        drop(_2) -> [return: bb4, unwind: bb9]; // scope 1 at $DIR/issue_41110.rs:+5:1: +5:2
     }
 
     bb4: {
-        StorageDead(_2);                 // scope 1 at $DIR/issue-41110.rs:+5:1: +5:2
-        goto -> bb5;                     // scope 0 at $DIR/issue-41110.rs:+5:1: +5:2
+        StorageDead(_2);                 // scope 1 at $DIR/issue_41110.rs:+5:1: +5:2
+        goto -> bb5;                     // scope 0 at $DIR/issue_41110.rs:+5:1: +5:2
     }
 
     bb5: {
-        _6 = const false;                // scope 0 at $DIR/issue-41110.rs:+5:1: +5:2
-        StorageDead(_1);                 // scope 0 at $DIR/issue-41110.rs:+5:1: +5:2
-        return;                          // scope 0 at $DIR/issue-41110.rs:+5:2: +5:2
+        _6 = const false;                // scope 0 at $DIR/issue_41110.rs:+5:1: +5:2
+        StorageDead(_1);                 // scope 0 at $DIR/issue_41110.rs:+5:1: +5:2
+        return;                          // scope 0 at $DIR/issue_41110.rs:+5:2: +5:2
     }
 
     bb6 (cleanup): {
-        goto -> bb8;                     // scope 2 at $DIR/issue-41110.rs:+4:9: +4:10
+        goto -> bb8;                     // scope 2 at $DIR/issue_41110.rs:+4:9: +4:10
     }
 
     bb7 (cleanup): {
-        goto -> bb8;                     // scope 2 at $DIR/issue-41110.rs:+3:11: +3:12
+        goto -> bb8;                     // scope 2 at $DIR/issue_41110.rs:+3:11: +3:12
     }
 
     bb8 (cleanup): {
-        goto -> bb9;                     // scope 1 at $DIR/issue-41110.rs:+5:1: +5:2
+        goto -> bb9;                     // scope 1 at $DIR/issue_41110.rs:+5:1: +5:2
     }
 
     bb9 (cleanup): {
-        goto -> bb14;                    // scope 0 at $DIR/issue-41110.rs:+5:1: +5:2
+        goto -> bb14;                    // scope 0 at $DIR/issue_41110.rs:+5:1: +5:2
     }
 
     bb10 (cleanup): {
-        resume;                          // scope 0 at $DIR/issue-41110.rs:+0:1: +5:2
+        resume;                          // scope 0 at $DIR/issue_41110.rs:+0:1: +5:2
     }
 
     bb11 (cleanup): {
-        _2 = move _5;                    // scope 2 at $DIR/issue-41110.rs:+4:5: +4:6
-        goto -> bb6;                     // scope 2 at $DIR/issue-41110.rs:+4:5: +4:6
+        _2 = move _5;                    // scope 2 at $DIR/issue_41110.rs:+4:5: +4:6
+        goto -> bb6;                     // scope 2 at $DIR/issue_41110.rs:+4:5: +4:6
     }
 
     bb12: {
-        _2 = move _5;                    // scope 2 at $DIR/issue-41110.rs:+4:5: +4:6
-        goto -> bb2;                     // scope 2 at $DIR/issue-41110.rs:+4:5: +4:6
+        _2 = move _5;                    // scope 2 at $DIR/issue_41110.rs:+4:5: +4:6
+        goto -> bb2;                     // scope 2 at $DIR/issue_41110.rs:+4:5: +4:6
     }
 
     bb13 (cleanup): {
-        drop(_1) -> bb10;                // scope 0 at $DIR/issue-41110.rs:+5:1: +5:2
+        drop(_1) -> bb10;                // scope 0 at $DIR/issue_41110.rs:+5:1: +5:2
     }
 
     bb14 (cleanup): {
-        switchInt(_6) -> [false: bb10, otherwise: bb13]; // scope 0 at $DIR/issue-41110.rs:+5:1: +5:2
+        switchInt(_6) -> [false: bb10, otherwise: bb13]; // scope 0 at $DIR/issue_41110.rs:+5:1: +5:2
     }
 }
diff --git a/src/test/mir-opt/issue-41697.rs b/src/test/mir-opt/issue_41697.rs
similarity index 100%
rename from src/test/mir-opt/issue-41697.rs
rename to src/test/mir-opt/issue_41697.rs
diff --git a/src/test/mir-opt/issue_41697.{impl#0}-{constant#0}.SimplifyCfg-promote-consts.after.mir b/src/test/mir-opt/issue_41697.{impl#0}-{constant#0}.SimplifyCfg-promote-consts.after.mir
index 047b24db46643..8af087d84f116 100644
--- a/src/test/mir-opt/issue_41697.{impl#0}-{constant#0}.SimplifyCfg-promote-consts.after.mir
+++ b/src/test/mir-opt/issue_41697.{impl#0}-{constant#0}.SimplifyCfg-promote-consts.after.mir
@@ -1,20 +1,20 @@
-// MIR for `<impl at $DIR/issue-41697.rs:18:1: 18:23>::{constant#0}` after SimplifyCfg-promote-consts
+// MIR for `<impl at $DIR/issue_41697.rs:18:1: 18:23>::{constant#0}` after SimplifyCfg-promote-consts
 
-<impl at $DIR/issue-41697.rs:18:1: 18:23>::{constant#0}: usize = {
-    let mut _0: usize;                   // return place in scope 0 at $DIR/issue-41697.rs:+0:19: +0:22
-    let mut _1: (usize, bool);           // in scope 0 at $DIR/issue-41697.rs:+0:19: +0:22
+<impl at $DIR/issue_41697.rs:18:1: 18:23>::{constant#0}: usize = {
+    let mut _0: usize;                   // return place in scope 0 at $DIR/issue_41697.rs:+0:19: +0:22
+    let mut _1: (usize, bool);           // in scope 0 at $DIR/issue_41697.rs:+0:19: +0:22
 
     bb0: {
-        _1 = CheckedAdd(const 1_usize, const 1_usize); // scope 0 at $DIR/issue-41697.rs:+0:19: +0:22
-        assert(!move (_1.1: bool), "attempt to compute `{} + {}`, which would overflow", const 1_usize, const 1_usize) -> [success: bb1, unwind: bb2]; // scope 0 at $DIR/issue-41697.rs:+0:19: +0:22
+        _1 = CheckedAdd(const 1_usize, const 1_usize); // scope 0 at $DIR/issue_41697.rs:+0:19: +0:22
+        assert(!move (_1.1: bool), "attempt to compute `{} + {}`, which would overflow", const 1_usize, const 1_usize) -> [success: bb1, unwind: bb2]; // scope 0 at $DIR/issue_41697.rs:+0:19: +0:22
     }
 
     bb1: {
-        _0 = move (_1.0: usize);         // scope 0 at $DIR/issue-41697.rs:+0:19: +0:22
-        return;                          // scope 0 at $DIR/issue-41697.rs:+0:19: +0:22
+        _0 = move (_1.0: usize);         // scope 0 at $DIR/issue_41697.rs:+0:19: +0:22
+        return;                          // scope 0 at $DIR/issue_41697.rs:+0:19: +0:22
     }
 
     bb2 (cleanup): {
-        resume;                          // scope 0 at $DIR/issue-41697.rs:+0:19: +0:22
+        resume;                          // scope 0 at $DIR/issue_41697.rs:+0:19: +0:22
     }
 }
diff --git a/src/test/mir-opt/issue_41888.main.ElaborateDrops.after.mir b/src/test/mir-opt/issue_41888.main.ElaborateDrops.after.mir
index f95a0a1c013bc..73372c97bea72 100644
--- a/src/test/mir-opt/issue_41888.main.ElaborateDrops.after.mir
+++ b/src/test/mir-opt/issue_41888.main.ElaborateDrops.after.mir
@@ -1,152 +1,152 @@
 // MIR for `main` after ElaborateDrops
 
 fn main() -> () {
-    let mut _0: ();                      // return place in scope 0 at $DIR/issue-41888.rs:+0:11: +0:11
-    let _1: E;                           // in scope 0 at $DIR/issue-41888.rs:+1:9: +1:10
-    let mut _2: bool;                    // in scope 0 at $DIR/issue-41888.rs:+2:8: +2:14
-    let mut _3: E;                       // in scope 0 at $DIR/issue-41888.rs:+3:13: +3:20
-    let mut _4: K;                       // in scope 0 at $DIR/issue-41888.rs:+3:18: +3:19
-    let mut _5: isize;                   // in scope 0 at $DIR/issue-41888.rs:+4:16: +4:24
-    let mut _7: bool;                    // in scope 0 at $DIR/issue-41888.rs:+9:1: +9:2
-    let mut _8: bool;                    // in scope 0 at $DIR/issue-41888.rs:+9:1: +9:2
-    let mut _9: bool;                    // in scope 0 at $DIR/issue-41888.rs:+9:1: +9:2
-    let mut _10: isize;                  // in scope 0 at $DIR/issue-41888.rs:+9:1: +9:2
-    let mut _11: isize;                  // in scope 0 at $DIR/issue-41888.rs:+9:1: +9:2
+    let mut _0: ();                      // return place in scope 0 at $DIR/issue_41888.rs:+0:11: +0:11
+    let _1: E;                           // in scope 0 at $DIR/issue_41888.rs:+1:9: +1:10
+    let mut _2: bool;                    // in scope 0 at $DIR/issue_41888.rs:+2:8: +2:14
+    let mut _3: E;                       // in scope 0 at $DIR/issue_41888.rs:+3:13: +3:20
+    let mut _4: K;                       // in scope 0 at $DIR/issue_41888.rs:+3:18: +3:19
+    let mut _5: isize;                   // in scope 0 at $DIR/issue_41888.rs:+4:16: +4:24
+    let mut _7: bool;                    // in scope 0 at $DIR/issue_41888.rs:+9:1: +9:2
+    let mut _8: bool;                    // in scope 0 at $DIR/issue_41888.rs:+9:1: +9:2
+    let mut _9: bool;                    // in scope 0 at $DIR/issue_41888.rs:+9:1: +9:2
+    let mut _10: isize;                  // in scope 0 at $DIR/issue_41888.rs:+9:1: +9:2
+    let mut _11: isize;                  // in scope 0 at $DIR/issue_41888.rs:+9:1: +9:2
     scope 1 {
-        debug e => _1;                   // in scope 1 at $DIR/issue-41888.rs:+1:9: +1:10
+        debug e => _1;                   // in scope 1 at $DIR/issue_41888.rs:+1:9: +1:10
         scope 2 {
-            debug _k => _6;              // in scope 2 at $DIR/issue-41888.rs:+4:21: +4:23
-            let _6: K;                   // in scope 2 at $DIR/issue-41888.rs:+4:21: +4:23
+            debug _k => _6;              // in scope 2 at $DIR/issue_41888.rs:+4:21: +4:23
+            let _6: K;                   // in scope 2 at $DIR/issue_41888.rs:+4:21: +4:23
         }
     }
 
     bb0: {
-        _9 = const false;                // scope 0 at $DIR/issue-41888.rs:+1:9: +1:10
-        _7 = const false;                // scope 0 at $DIR/issue-41888.rs:+1:9: +1:10
-        _8 = const false;                // scope 0 at $DIR/issue-41888.rs:+1:9: +1:10
-        StorageLive(_1);                 // scope 0 at $DIR/issue-41888.rs:+1:9: +1:10
-        StorageLive(_2);                 // scope 1 at $DIR/issue-41888.rs:+2:8: +2:14
-        _2 = cond() -> [return: bb1, unwind: bb11]; // scope 1 at $DIR/issue-41888.rs:+2:8: +2:14
+        _9 = const false;                // scope 0 at $DIR/issue_41888.rs:+1:9: +1:10
+        _7 = const false;                // scope 0 at $DIR/issue_41888.rs:+1:9: +1:10
+        _8 = const false;                // scope 0 at $DIR/issue_41888.rs:+1:9: +1:10
+        StorageLive(_1);                 // scope 0 at $DIR/issue_41888.rs:+1:9: +1:10
+        StorageLive(_2);                 // scope 1 at $DIR/issue_41888.rs:+2:8: +2:14
+        _2 = cond() -> [return: bb1, unwind: bb11]; // scope 1 at $DIR/issue_41888.rs:+2:8: +2:14
                                          // mir::Constant
-                                         // + span: $DIR/issue-41888.rs:8:8: 8:12
+                                         // + span: $DIR/issue_41888.rs:8:8: 8:12
                                          // + literal: Const { ty: fn() -> bool {cond}, val: Value(<ZST>) }
     }
 
     bb1: {
-        switchInt(move _2) -> [false: bb7, otherwise: bb2]; // scope 1 at $DIR/issue-41888.rs:+2:8: +2:14
+        switchInt(move _2) -> [false: bb7, otherwise: bb2]; // scope 1 at $DIR/issue_41888.rs:+2:8: +2:14
     }
 
     bb2: {
-        StorageLive(_3);                 // scope 1 at $DIR/issue-41888.rs:+3:13: +3:20
-        StorageLive(_4);                 // scope 1 at $DIR/issue-41888.rs:+3:18: +3:19
-        _4 = K;                          // scope 1 at $DIR/issue-41888.rs:+3:18: +3:19
-        _3 = E::F(move _4);              // scope 1 at $DIR/issue-41888.rs:+3:13: +3:20
-        StorageDead(_4);                 // scope 1 at $DIR/issue-41888.rs:+3:19: +3:20
-        goto -> bb14;                    // scope 1 at $DIR/issue-41888.rs:+3:9: +3:10
+        StorageLive(_3);                 // scope 1 at $DIR/issue_41888.rs:+3:13: +3:20
+        StorageLive(_4);                 // scope 1 at $DIR/issue_41888.rs:+3:18: +3:19
+        _4 = K;                          // scope 1 at $DIR/issue_41888.rs:+3:18: +3:19
+        _3 = E::F(move _4);              // scope 1 at $DIR/issue_41888.rs:+3:13: +3:20
+        StorageDead(_4);                 // scope 1 at $DIR/issue_41888.rs:+3:19: +3:20
+        goto -> bb14;                    // scope 1 at $DIR/issue_41888.rs:+3:9: +3:10
     }
 
     bb3: {
-        goto -> bb4;                     // scope 1 at $DIR/issue-41888.rs:+3:19: +3:20
+        goto -> bb4;                     // scope 1 at $DIR/issue_41888.rs:+3:19: +3:20
     }
 
     bb4: {
-        StorageDead(_3);                 // scope 1 at $DIR/issue-41888.rs:+3:19: +3:20
-        _5 = discriminant(_1);           // scope 2 at $DIR/issue-41888.rs:+4:16: +4:24
-        switchInt(move _5) -> [0_isize: bb5, otherwise: bb6]; // scope 2 at $DIR/issue-41888.rs:+4:16: +4:24
+        StorageDead(_3);                 // scope 1 at $DIR/issue_41888.rs:+3:19: +3:20
+        _5 = discriminant(_1);           // scope 2 at $DIR/issue_41888.rs:+4:16: +4:24
+        switchInt(move _5) -> [0_isize: bb5, otherwise: bb6]; // scope 2 at $DIR/issue_41888.rs:+4:16: +4:24
     }
 
     bb5: {
-        StorageLive(_6);                 // scope 2 at $DIR/issue-41888.rs:+4:21: +4:23
-        _9 = const false;                // scope 2 at $DIR/issue-41888.rs:+4:21: +4:23
-        _6 = move ((_1 as F).0: K);      // scope 2 at $DIR/issue-41888.rs:+4:21: +4:23
-        _0 = const ();                   // scope 2 at $DIR/issue-41888.rs:+4:29: +7:10
-        StorageDead(_6);                 // scope 1 at $DIR/issue-41888.rs:+7:9: +7:10
-        goto -> bb8;                     // scope 1 at $DIR/issue-41888.rs:+4:9: +7:10
+        StorageLive(_6);                 // scope 2 at $DIR/issue_41888.rs:+4:21: +4:23
+        _9 = const false;                // scope 2 at $DIR/issue_41888.rs:+4:21: +4:23
+        _6 = move ((_1 as F).0: K);      // scope 2 at $DIR/issue_41888.rs:+4:21: +4:23
+        _0 = const ();                   // scope 2 at $DIR/issue_41888.rs:+4:29: +7:10
+        StorageDead(_6);                 // scope 1 at $DIR/issue_41888.rs:+7:9: +7:10
+        goto -> bb8;                     // scope 1 at $DIR/issue_41888.rs:+4:9: +7:10
     }
 
     bb6: {
-        _0 = const ();                   // scope 1 at $DIR/issue-41888.rs:+7:10: +7:10
-        goto -> bb8;                     // scope 1 at $DIR/issue-41888.rs:+4:9: +7:10
+        _0 = const ();                   // scope 1 at $DIR/issue_41888.rs:+7:10: +7:10
+        goto -> bb8;                     // scope 1 at $DIR/issue_41888.rs:+4:9: +7:10
     }
 
     bb7: {
-        _0 = const ();                   // scope 1 at $DIR/issue-41888.rs:+8:6: +8:6
-        goto -> bb8;                     // scope 1 at $DIR/issue-41888.rs:+2:5: +8:6
+        _0 = const ();                   // scope 1 at $DIR/issue_41888.rs:+8:6: +8:6
+        goto -> bb8;                     // scope 1 at $DIR/issue_41888.rs:+2:5: +8:6
     }
 
     bb8: {
-        StorageDead(_2);                 // scope 1 at $DIR/issue-41888.rs:+8:5: +8:6
-        goto -> bb20;                    // scope 0 at $DIR/issue-41888.rs:+9:1: +9:2
+        StorageDead(_2);                 // scope 1 at $DIR/issue_41888.rs:+8:5: +8:6
+        goto -> bb20;                    // scope 0 at $DIR/issue_41888.rs:+9:1: +9:2
     }
 
     bb9: {
-        _7 = const false;                // scope 0 at $DIR/issue-41888.rs:+9:1: +9:2
-        _8 = const false;                // scope 0 at $DIR/issue-41888.rs:+9:1: +9:2
-        _9 = const false;                // scope 0 at $DIR/issue-41888.rs:+9:1: +9:2
-        StorageDead(_1);                 // scope 0 at $DIR/issue-41888.rs:+9:1: +9:2
-        return;                          // scope 0 at $DIR/issue-41888.rs:+9:2: +9:2
+        _7 = const false;                // scope 0 at $DIR/issue_41888.rs:+9:1: +9:2
+        _8 = const false;                // scope 0 at $DIR/issue_41888.rs:+9:1: +9:2
+        _9 = const false;                // scope 0 at $DIR/issue_41888.rs:+9:1: +9:2
+        StorageDead(_1);                 // scope 0 at $DIR/issue_41888.rs:+9:1: +9:2
+        return;                          // scope 0 at $DIR/issue_41888.rs:+9:2: +9:2
     }
 
     bb10 (cleanup): {
-        goto -> bb11;                    // scope 1 at $DIR/issue-41888.rs:+3:19: +3:20
+        goto -> bb11;                    // scope 1 at $DIR/issue_41888.rs:+3:19: +3:20
     }
 
     bb11 (cleanup): {
-        goto -> bb12;                    // scope 0 at $DIR/issue-41888.rs:+9:1: +9:2
+        goto -> bb12;                    // scope 0 at $DIR/issue_41888.rs:+9:1: +9:2
     }
 
     bb12 (cleanup): {
-        resume;                          // scope 0 at $DIR/issue-41888.rs:+0:1: +9:2
+        resume;                          // scope 0 at $DIR/issue_41888.rs:+0:1: +9:2
     }
 
     bb13 (cleanup): {
-        _7 = const true;                 // scope 1 at $DIR/issue-41888.rs:+3:9: +3:10
-        _8 = const true;                 // scope 1 at $DIR/issue-41888.rs:+3:9: +3:10
-        _9 = const true;                 // scope 1 at $DIR/issue-41888.rs:+3:9: +3:10
-        _1 = move _3;                    // scope 1 at $DIR/issue-41888.rs:+3:9: +3:10
-        goto -> bb10;                    // scope 1 at $DIR/issue-41888.rs:+3:9: +3:10
+        _7 = const true;                 // scope 1 at $DIR/issue_41888.rs:+3:9: +3:10
+        _8 = const true;                 // scope 1 at $DIR/issue_41888.rs:+3:9: +3:10
+        _9 = const true;                 // scope 1 at $DIR/issue_41888.rs:+3:9: +3:10
+        _1 = move _3;                    // scope 1 at $DIR/issue_41888.rs:+3:9: +3:10
+        goto -> bb10;                    // scope 1 at $DIR/issue_41888.rs:+3:9: +3:10
     }
 
     bb14: {
-        _7 = const true;                 // scope 1 at $DIR/issue-41888.rs:+3:9: +3:10
-        _8 = const true;                 // scope 1 at $DIR/issue-41888.rs:+3:9: +3:10
-        _9 = const true;                 // scope 1 at $DIR/issue-41888.rs:+3:9: +3:10
-        _1 = move _3;                    // scope 1 at $DIR/issue-41888.rs:+3:9: +3:10
-        goto -> bb3;                     // scope 1 at $DIR/issue-41888.rs:+3:9: +3:10
+        _7 = const true;                 // scope 1 at $DIR/issue_41888.rs:+3:9: +3:10
+        _8 = const true;                 // scope 1 at $DIR/issue_41888.rs:+3:9: +3:10
+        _9 = const true;                 // scope 1 at $DIR/issue_41888.rs:+3:9: +3:10
+        _1 = move _3;                    // scope 1 at $DIR/issue_41888.rs:+3:9: +3:10
+        goto -> bb3;                     // scope 1 at $DIR/issue_41888.rs:+3:9: +3:10
     }
 
     bb15: {
-        _7 = const false;                // scope 0 at $DIR/issue-41888.rs:+9:1: +9:2
-        goto -> bb9;                     // scope 0 at $DIR/issue-41888.rs:+9:1: +9:2
+        _7 = const false;                // scope 0 at $DIR/issue_41888.rs:+9:1: +9:2
+        goto -> bb9;                     // scope 0 at $DIR/issue_41888.rs:+9:1: +9:2
     }
 
     bb16 (cleanup): {
-        goto -> bb12;                    // scope 0 at $DIR/issue-41888.rs:+9:1: +9:2
+        goto -> bb12;                    // scope 0 at $DIR/issue_41888.rs:+9:1: +9:2
     }
 
     bb17: {
-        drop(_1) -> [return: bb15, unwind: bb12]; // scope 0 at $DIR/issue-41888.rs:+9:1: +9:2
+        drop(_1) -> [return: bb15, unwind: bb12]; // scope 0 at $DIR/issue_41888.rs:+9:1: +9:2
     }
 
     bb18 (cleanup): {
-        drop(_1) -> bb12;                // scope 0 at $DIR/issue-41888.rs:+9:1: +9:2
+        drop(_1) -> bb12;                // scope 0 at $DIR/issue_41888.rs:+9:1: +9:2
     }
 
     bb19: {
-        _10 = discriminant(_1);          // scope 0 at $DIR/issue-41888.rs:+9:1: +9:2
-        switchInt(move _10) -> [0_isize: bb15, otherwise: bb17]; // scope 0 at $DIR/issue-41888.rs:+9:1: +9:2
+        _10 = discriminant(_1);          // scope 0 at $DIR/issue_41888.rs:+9:1: +9:2
+        switchInt(move _10) -> [0_isize: bb15, otherwise: bb17]; // scope 0 at $DIR/issue_41888.rs:+9:1: +9:2
     }
 
     bb20: {
-        switchInt(_7) -> [false: bb15, otherwise: bb19]; // scope 0 at $DIR/issue-41888.rs:+9:1: +9:2
+        switchInt(_7) -> [false: bb15, otherwise: bb19]; // scope 0 at $DIR/issue_41888.rs:+9:1: +9:2
     }
 
     bb21 (cleanup): {
-        _11 = discriminant(_1);          // scope 0 at $DIR/issue-41888.rs:+9:1: +9:2
-        switchInt(move _11) -> [0_isize: bb16, otherwise: bb18]; // scope 0 at $DIR/issue-41888.rs:+9:1: +9:2
+        _11 = discriminant(_1);          // scope 0 at $DIR/issue_41888.rs:+9:1: +9:2
+        switchInt(move _11) -> [0_isize: bb16, otherwise: bb18]; // scope 0 at $DIR/issue_41888.rs:+9:1: +9:2
     }
 
     bb22 (cleanup): {
-        switchInt(_7) -> [false: bb12, otherwise: bb21]; // scope 0 at $DIR/issue-41888.rs:+9:1: +9:2
+        switchInt(_7) -> [false: bb12, otherwise: bb21]; // scope 0 at $DIR/issue_41888.rs:+9:1: +9:2
     }
 }
diff --git a/src/test/mir-opt/issue-41888.rs b/src/test/mir-opt/issue_41888.rs
similarity index 100%
rename from src/test/mir-opt/issue-41888.rs
rename to src/test/mir-opt/issue_41888.rs
diff --git a/src/test/mir-opt/issue-62289.rs b/src/test/mir-opt/issue_62289.rs
similarity index 100%
rename from src/test/mir-opt/issue-62289.rs
rename to src/test/mir-opt/issue_62289.rs
diff --git a/src/test/mir-opt/issue_62289.test.ElaborateDrops.before.mir b/src/test/mir-opt/issue_62289.test.ElaborateDrops.before.mir
index 72603dc5dbea2..6969a66ac1925 100644
--- a/src/test/mir-opt/issue_62289.test.ElaborateDrops.before.mir
+++ b/src/test/mir-opt/issue_62289.test.ElaborateDrops.before.mir
@@ -1,122 +1,122 @@
 // MIR for `test` before ElaborateDrops
 
 fn test() -> Option<Box<u32>> {
-    let mut _0: std::option::Option<std::boxed::Box<u32>>; // return place in scope 0 at $DIR/issue-62289.rs:+0:14: +0:30
-    let mut _1: std::boxed::Box<u32>;    // in scope 0 at $DIR/issue-62289.rs:+1:10: +1:21
-    let mut _2: usize;                   // in scope 0 at $DIR/issue-62289.rs:+1:10: +1:21
-    let mut _3: usize;                   // in scope 0 at $DIR/issue-62289.rs:+1:10: +1:21
-    let mut _4: *mut u8;                 // in scope 0 at $DIR/issue-62289.rs:+1:10: +1:21
-    let mut _5: std::boxed::Box<u32>;    // in scope 0 at $DIR/issue-62289.rs:+1:10: +1:21
-    let mut _6: std::ops::ControlFlow<std::option::Option<std::convert::Infallible>, u32>; // in scope 0 at $DIR/issue-62289.rs:+1:15: +1:20
-    let mut _7: std::option::Option<u32>; // in scope 0 at $DIR/issue-62289.rs:+1:15: +1:19
-    let mut _8: isize;                   // in scope 0 at $DIR/issue-62289.rs:+1:19: +1:20
-    let _9: std::option::Option<std::convert::Infallible>; // in scope 0 at $DIR/issue-62289.rs:+1:19: +1:20
-    let mut _10: !;                      // in scope 0 at $DIR/issue-62289.rs:+1:19: +1:20
-    let mut _11: std::option::Option<std::convert::Infallible>; // in scope 0 at $DIR/issue-62289.rs:+1:19: +1:20
-    let _12: u32;                        // in scope 0 at $DIR/issue-62289.rs:+1:15: +1:20
+    let mut _0: std::option::Option<std::boxed::Box<u32>>; // return place in scope 0 at $DIR/issue_62289.rs:+0:14: +0:30
+    let mut _1: std::boxed::Box<u32>;    // in scope 0 at $DIR/issue_62289.rs:+1:10: +1:21
+    let mut _2: usize;                   // in scope 0 at $DIR/issue_62289.rs:+1:10: +1:21
+    let mut _3: usize;                   // in scope 0 at $DIR/issue_62289.rs:+1:10: +1:21
+    let mut _4: *mut u8;                 // in scope 0 at $DIR/issue_62289.rs:+1:10: +1:21
+    let mut _5: std::boxed::Box<u32>;    // in scope 0 at $DIR/issue_62289.rs:+1:10: +1:21
+    let mut _6: std::ops::ControlFlow<std::option::Option<std::convert::Infallible>, u32>; // in scope 0 at $DIR/issue_62289.rs:+1:15: +1:20
+    let mut _7: std::option::Option<u32>; // in scope 0 at $DIR/issue_62289.rs:+1:15: +1:19
+    let mut _8: isize;                   // in scope 0 at $DIR/issue_62289.rs:+1:19: +1:20
+    let _9: std::option::Option<std::convert::Infallible>; // in scope 0 at $DIR/issue_62289.rs:+1:19: +1:20
+    let mut _10: !;                      // in scope 0 at $DIR/issue_62289.rs:+1:19: +1:20
+    let mut _11: std::option::Option<std::convert::Infallible>; // in scope 0 at $DIR/issue_62289.rs:+1:19: +1:20
+    let _12: u32;                        // in scope 0 at $DIR/issue_62289.rs:+1:15: +1:20
     scope 1 {
     }
     scope 2 {
-        debug residual => _9;            // in scope 2 at $DIR/issue-62289.rs:+1:19: +1:20
+        debug residual => _9;            // in scope 2 at $DIR/issue_62289.rs:+1:19: +1:20
         scope 3 {
         }
     }
     scope 4 {
-        debug val => _12;                // in scope 4 at $DIR/issue-62289.rs:+1:15: +1:20
+        debug val => _12;                // in scope 4 at $DIR/issue_62289.rs:+1:15: +1:20
         scope 5 {
         }
     }
 
     bb0: {
-        StorageLive(_1);                 // scope 0 at $DIR/issue-62289.rs:+1:10: +1:21
-        _2 = SizeOf(u32);                // scope 1 at $DIR/issue-62289.rs:+1:10: +1:21
-        _3 = AlignOf(u32);               // scope 1 at $DIR/issue-62289.rs:+1:10: +1:21
-        _4 = alloc::alloc::exchange_malloc(move _2, move _3) -> bb1; // scope 1 at $DIR/issue-62289.rs:+1:10: +1:21
+        StorageLive(_1);                 // scope 0 at $DIR/issue_62289.rs:+1:10: +1:21
+        _2 = SizeOf(u32);                // scope 1 at $DIR/issue_62289.rs:+1:10: +1:21
+        _3 = AlignOf(u32);               // scope 1 at $DIR/issue_62289.rs:+1:10: +1:21
+        _4 = alloc::alloc::exchange_malloc(move _2, move _3) -> bb1; // scope 1 at $DIR/issue_62289.rs:+1:10: +1:21
                                          // mir::Constant
-                                         // + span: $DIR/issue-62289.rs:9:10: 9:21
+                                         // + span: $DIR/issue_62289.rs:9:10: 9:21
                                          // + literal: Const { ty: unsafe fn(usize, usize) -> *mut u8 {alloc::alloc::exchange_malloc}, val: Value(<ZST>) }
     }
 
     bb1: {
-        StorageLive(_5);                 // scope 0 at $DIR/issue-62289.rs:+1:10: +1:21
-        _5 = ShallowInitBox(move _4, u32); // scope 0 at $DIR/issue-62289.rs:+1:10: +1:21
-        StorageLive(_6);                 // scope 0 at $DIR/issue-62289.rs:+1:15: +1:20
-        StorageLive(_7);                 // scope 0 at $DIR/issue-62289.rs:+1:15: +1:19
-        _7 = Option::<u32>::None;        // scope 0 at $DIR/issue-62289.rs:+1:15: +1:19
-        _6 = <Option<u32> as Try>::branch(move _7) -> [return: bb2, unwind: bb12]; // scope 0 at $DIR/issue-62289.rs:+1:15: +1:20
+        StorageLive(_5);                 // scope 0 at $DIR/issue_62289.rs:+1:10: +1:21
+        _5 = ShallowInitBox(move _4, u32); // scope 0 at $DIR/issue_62289.rs:+1:10: +1:21
+        StorageLive(_6);                 // scope 0 at $DIR/issue_62289.rs:+1:15: +1:20
+        StorageLive(_7);                 // scope 0 at $DIR/issue_62289.rs:+1:15: +1:19
+        _7 = Option::<u32>::None;        // scope 0 at $DIR/issue_62289.rs:+1:15: +1:19
+        _6 = <Option<u32> as Try>::branch(move _7) -> [return: bb2, unwind: bb12]; // scope 0 at $DIR/issue_62289.rs:+1:15: +1:20
                                          // mir::Constant
-                                         // + span: $DIR/issue-62289.rs:9:15: 9:20
+                                         // + span: $DIR/issue_62289.rs:9:15: 9:20
                                          // + literal: Const { ty: fn(Option<u32>) -> ControlFlow<<Option<u32> as Try>::Residual, <Option<u32> as Try>::Output> {<Option<u32> as Try>::branch}, val: Value(<ZST>) }
     }
 
     bb2: {
-        StorageDead(_7);                 // scope 0 at $DIR/issue-62289.rs:+1:19: +1:20
-        _8 = discriminant(_6);           // scope 0 at $DIR/issue-62289.rs:+1:15: +1:20
-        switchInt(move _8) -> [0_isize: bb3, 1_isize: bb5, otherwise: bb4]; // scope 0 at $DIR/issue-62289.rs:+1:15: +1:20
+        StorageDead(_7);                 // scope 0 at $DIR/issue_62289.rs:+1:19: +1:20
+        _8 = discriminant(_6);           // scope 0 at $DIR/issue_62289.rs:+1:15: +1:20
+        switchInt(move _8) -> [0_isize: bb3, 1_isize: bb5, otherwise: bb4]; // scope 0 at $DIR/issue_62289.rs:+1:15: +1:20
     }
 
     bb3: {
-        StorageLive(_12);                // scope 0 at $DIR/issue-62289.rs:+1:15: +1:20
-        _12 = ((_6 as Continue).0: u32); // scope 0 at $DIR/issue-62289.rs:+1:15: +1:20
-        (*_5) = _12;                     // scope 5 at $DIR/issue-62289.rs:+1:15: +1:20
-        StorageDead(_12);                // scope 0 at $DIR/issue-62289.rs:+1:19: +1:20
-        _1 = move _5;                    // scope 0 at $DIR/issue-62289.rs:+1:10: +1:21
-        drop(_5) -> [return: bb7, unwind: bb11]; // scope 0 at $DIR/issue-62289.rs:+1:20: +1:21
+        StorageLive(_12);                // scope 0 at $DIR/issue_62289.rs:+1:15: +1:20
+        _12 = ((_6 as Continue).0: u32); // scope 0 at $DIR/issue_62289.rs:+1:15: +1:20
+        (*_5) = _12;                     // scope 5 at $DIR/issue_62289.rs:+1:15: +1:20
+        StorageDead(_12);                // scope 0 at $DIR/issue_62289.rs:+1:19: +1:20
+        _1 = move _5;                    // scope 0 at $DIR/issue_62289.rs:+1:10: +1:21
+        drop(_5) -> [return: bb7, unwind: bb11]; // scope 0 at $DIR/issue_62289.rs:+1:20: +1:21
     }
 
     bb4: {
-        unreachable;                     // scope 0 at $DIR/issue-62289.rs:+1:15: +1:20
+        unreachable;                     // scope 0 at $DIR/issue_62289.rs:+1:15: +1:20
     }
 
     bb5: {
-        StorageLive(_9);                 // scope 0 at $DIR/issue-62289.rs:+1:19: +1:20
-        _9 = ((_6 as Break).0: std::option::Option<std::convert::Infallible>); // scope 0 at $DIR/issue-62289.rs:+1:19: +1:20
-        StorageLive(_11);                // scope 3 at $DIR/issue-62289.rs:+1:19: +1:20
-        _11 = _9;                        // scope 3 at $DIR/issue-62289.rs:+1:19: +1:20
-        _0 = <Option<Box<u32>> as FromResidual<Option<Infallible>>>::from_residual(move _11) -> [return: bb6, unwind: bb12]; // scope 3 at $DIR/issue-62289.rs:+1:15: +1:20
+        StorageLive(_9);                 // scope 0 at $DIR/issue_62289.rs:+1:19: +1:20
+        _9 = ((_6 as Break).0: std::option::Option<std::convert::Infallible>); // scope 0 at $DIR/issue_62289.rs:+1:19: +1:20
+        StorageLive(_11);                // scope 3 at $DIR/issue_62289.rs:+1:19: +1:20
+        _11 = _9;                        // scope 3 at $DIR/issue_62289.rs:+1:19: +1:20
+        _0 = <Option<Box<u32>> as FromResidual<Option<Infallible>>>::from_residual(move _11) -> [return: bb6, unwind: bb12]; // scope 3 at $DIR/issue_62289.rs:+1:15: +1:20
                                          // mir::Constant
-                                         // + span: $DIR/issue-62289.rs:9:19: 9:20
+                                         // + span: $DIR/issue_62289.rs:9:19: 9:20
                                          // + literal: Const { ty: fn(Option<Infallible>) -> Option<Box<u32>> {<Option<Box<u32>> as FromResidual<Option<Infallible>>>::from_residual}, val: Value(<ZST>) }
     }
 
     bb6: {
-        StorageDead(_11);                // scope 3 at $DIR/issue-62289.rs:+1:19: +1:20
-        StorageDead(_9);                 // scope 0 at $DIR/issue-62289.rs:+1:19: +1:20
-        drop(_5) -> bb9;                 // scope 0 at $DIR/issue-62289.rs:+1:20: +1:21
+        StorageDead(_11);                // scope 3 at $DIR/issue_62289.rs:+1:19: +1:20
+        StorageDead(_9);                 // scope 0 at $DIR/issue_62289.rs:+1:19: +1:20
+        drop(_5) -> bb9;                 // scope 0 at $DIR/issue_62289.rs:+1:20: +1:21
     }
 
     bb7: {
-        StorageDead(_5);                 // scope 0 at $DIR/issue-62289.rs:+1:20: +1:21
-        _0 = Option::<Box<u32>>::Some(move _1); // scope 0 at $DIR/issue-62289.rs:+1:5: +1:22
-        drop(_1) -> bb8;                 // scope 0 at $DIR/issue-62289.rs:+1:21: +1:22
+        StorageDead(_5);                 // scope 0 at $DIR/issue_62289.rs:+1:20: +1:21
+        _0 = Option::<Box<u32>>::Some(move _1); // scope 0 at $DIR/issue_62289.rs:+1:5: +1:22
+        drop(_1) -> bb8;                 // scope 0 at $DIR/issue_62289.rs:+1:21: +1:22
     }
 
     bb8: {
-        StorageDead(_1);                 // scope 0 at $DIR/issue-62289.rs:+1:21: +1:22
-        StorageDead(_6);                 // scope 0 at $DIR/issue-62289.rs:+2:1: +2:2
-        goto -> bb10;                    // scope 0 at $DIR/issue-62289.rs:+2:2: +2:2
+        StorageDead(_1);                 // scope 0 at $DIR/issue_62289.rs:+1:21: +1:22
+        StorageDead(_6);                 // scope 0 at $DIR/issue_62289.rs:+2:1: +2:2
+        goto -> bb10;                    // scope 0 at $DIR/issue_62289.rs:+2:2: +2:2
     }
 
     bb9: {
-        StorageDead(_5);                 // scope 0 at $DIR/issue-62289.rs:+1:20: +1:21
-        StorageDead(_1);                 // scope 0 at $DIR/issue-62289.rs:+1:21: +1:22
-        StorageDead(_6);                 // scope 0 at $DIR/issue-62289.rs:+2:1: +2:2
-        goto -> bb10;                    // scope 0 at $DIR/issue-62289.rs:+2:2: +2:2
+        StorageDead(_5);                 // scope 0 at $DIR/issue_62289.rs:+1:20: +1:21
+        StorageDead(_1);                 // scope 0 at $DIR/issue_62289.rs:+1:21: +1:22
+        StorageDead(_6);                 // scope 0 at $DIR/issue_62289.rs:+2:1: +2:2
+        goto -> bb10;                    // scope 0 at $DIR/issue_62289.rs:+2:2: +2:2
     }
 
     bb10: {
-        return;                          // scope 0 at $DIR/issue-62289.rs:+2:2: +2:2
+        return;                          // scope 0 at $DIR/issue_62289.rs:+2:2: +2:2
     }
 
     bb11 (cleanup): {
-        drop(_1) -> bb13;                // scope 0 at $DIR/issue-62289.rs:+1:21: +1:22
+        drop(_1) -> bb13;                // scope 0 at $DIR/issue_62289.rs:+1:21: +1:22
     }
 
     bb12 (cleanup): {
-        drop(_5) -> bb13;                // scope 0 at $DIR/issue-62289.rs:+1:20: +1:21
+        drop(_5) -> bb13;                // scope 0 at $DIR/issue_62289.rs:+1:20: +1:21
     }
 
     bb13 (cleanup): {
-        resume;                          // scope 0 at $DIR/issue-62289.rs:+0:1: +2:2
+        resume;                          // scope 0 at $DIR/issue_62289.rs:+0:1: +2:2
     }
 }
diff --git a/src/test/mir-opt/issue_72181.bar.built.after.mir b/src/test/mir-opt/issue_72181.bar.built.after.mir
index aa9c9986aac19..ebee89001b998 100644
--- a/src/test/mir-opt/issue_72181.bar.built.after.mir
+++ b/src/test/mir-opt/issue_72181.bar.built.after.mir
@@ -1,17 +1,17 @@
 // MIR for `bar` after built
 
 fn bar(_1: [(Never, u32); 1]) -> u32 {
-    let mut _0: u32;                     // return place in scope 0 at $DIR/issue-72181.rs:+0:40: +0:43
-    let _2: u32;                         // in scope 0 at $DIR/issue-72181.rs:+0:13: +0:14
+    let mut _0: u32;                     // return place in scope 0 at $DIR/issue_72181.rs:+0:40: +0:43
+    let _2: u32;                         // in scope 0 at $DIR/issue_72181.rs:+0:13: +0:14
     scope 1 {
-        debug x => _2;                   // in scope 1 at $DIR/issue-72181.rs:+0:13: +0:14
+        debug x => _2;                   // in scope 1 at $DIR/issue_72181.rs:+0:13: +0:14
     }
 
     bb0: {
-        StorageLive(_2);                 // scope 0 at $DIR/issue-72181.rs:+0:13: +0:14
-        _2 = (_1[0 of 1].1: u32);        // scope 0 at $DIR/issue-72181.rs:+0:13: +0:14
-        _0 = _2;                         // scope 1 at $DIR/issue-72181.rs:+0:46: +0:47
-        StorageDead(_2);                 // scope 0 at $DIR/issue-72181.rs:+0:48: +0:49
-        return;                          // scope 0 at $DIR/issue-72181.rs:+0:49: +0:49
+        StorageLive(_2);                 // scope 0 at $DIR/issue_72181.rs:+0:13: +0:14
+        _2 = (_1[0 of 1].1: u32);        // scope 0 at $DIR/issue_72181.rs:+0:13: +0:14
+        _0 = _2;                         // scope 1 at $DIR/issue_72181.rs:+0:46: +0:47
+        StorageDead(_2);                 // scope 0 at $DIR/issue_72181.rs:+0:48: +0:49
+        return;                          // scope 0 at $DIR/issue_72181.rs:+0:49: +0:49
     }
 }
diff --git a/src/test/mir-opt/issue_72181.foo.built.after.mir b/src/test/mir-opt/issue_72181.foo.built.after.mir
index 1d771ad3656d2..90c9785202a74 100644
--- a/src/test/mir-opt/issue_72181.foo.built.after.mir
+++ b/src/test/mir-opt/issue_72181.foo.built.after.mir
@@ -1,27 +1,27 @@
 // MIR for `foo` after built
 
 fn foo(_1: [(Never, u32); 1]) -> u32 {
-    debug xs => _1;                      // in scope 0 at $DIR/issue-72181.rs:+0:8: +0:10
-    let mut _0: u32;                     // return place in scope 0 at $DIR/issue-72181.rs:+0:34: +0:37
-    let _2: usize;                       // in scope 0 at $DIR/issue-72181.rs:+0:43: +0:44
-    let mut _3: usize;                   // in scope 0 at $DIR/issue-72181.rs:+0:40: +0:45
-    let mut _4: bool;                    // in scope 0 at $DIR/issue-72181.rs:+0:40: +0:45
+    debug xs => _1;                      // in scope 0 at $DIR/issue_72181.rs:+0:8: +0:10
+    let mut _0: u32;                     // return place in scope 0 at $DIR/issue_72181.rs:+0:34: +0:37
+    let _2: usize;                       // in scope 0 at $DIR/issue_72181.rs:+0:43: +0:44
+    let mut _3: usize;                   // in scope 0 at $DIR/issue_72181.rs:+0:40: +0:45
+    let mut _4: bool;                    // in scope 0 at $DIR/issue_72181.rs:+0:40: +0:45
 
     bb0: {
-        StorageLive(_2);                 // scope 0 at $DIR/issue-72181.rs:+0:43: +0:44
-        _2 = const 0_usize;              // scope 0 at $DIR/issue-72181.rs:+0:43: +0:44
-        _3 = Len(_1);                    // scope 0 at $DIR/issue-72181.rs:+0:40: +0:45
-        _4 = Lt(_2, _3);                 // scope 0 at $DIR/issue-72181.rs:+0:40: +0:45
-        assert(move _4, "index out of bounds: the length is {} but the index is {}", move _3, _2) -> [success: bb1, unwind: bb2]; // scope 0 at $DIR/issue-72181.rs:+0:40: +0:45
+        StorageLive(_2);                 // scope 0 at $DIR/issue_72181.rs:+0:43: +0:44
+        _2 = const 0_usize;              // scope 0 at $DIR/issue_72181.rs:+0:43: +0:44
+        _3 = Len(_1);                    // scope 0 at $DIR/issue_72181.rs:+0:40: +0:45
+        _4 = Lt(_2, _3);                 // scope 0 at $DIR/issue_72181.rs:+0:40: +0:45
+        assert(move _4, "index out of bounds: the length is {} but the index is {}", move _3, _2) -> [success: bb1, unwind: bb2]; // scope 0 at $DIR/issue_72181.rs:+0:40: +0:45
     }
 
     bb1: {
-        _0 = (_1[_2].1: u32);            // scope 0 at $DIR/issue-72181.rs:+0:40: +0:47
-        StorageDead(_2);                 // scope 0 at $DIR/issue-72181.rs:+0:48: +0:49
-        return;                          // scope 0 at $DIR/issue-72181.rs:+0:49: +0:49
+        _0 = (_1[_2].1: u32);            // scope 0 at $DIR/issue_72181.rs:+0:40: +0:47
+        StorageDead(_2);                 // scope 0 at $DIR/issue_72181.rs:+0:48: +0:49
+        return;                          // scope 0 at $DIR/issue_72181.rs:+0:49: +0:49
     }
 
     bb2 (cleanup): {
-        resume;                          // scope 0 at $DIR/issue-72181.rs:+0:1: +0:49
+        resume;                          // scope 0 at $DIR/issue_72181.rs:+0:1: +0:49
     }
 }
diff --git a/src/test/mir-opt/issue_72181.main.built.after.mir b/src/test/mir-opt/issue_72181.main.built.after.mir
index afa09b16fe964..e8683692770d1 100644
--- a/src/test/mir-opt/issue_72181.main.built.after.mir
+++ b/src/test/mir-opt/issue_72181.main.built.after.mir
@@ -1,18 +1,18 @@
 // MIR for `main` after built
 
 fn main() -> () {
-    let mut _0: ();                      // return place in scope 0 at $DIR/issue-72181.rs:+0:11: +0:11
-    let mut _1: usize;                   // in scope 0 at $DIR/issue-72181.rs:+1:13: +1:34
-    let mut _3: Foo;                     // in scope 0 at $DIR/issue-72181.rs:+3:14: +3:27
-    let mut _4: Foo;                     // in scope 0 at $DIR/issue-72181.rs:+3:29: +3:42
-    let mut _5: u64;                     // in scope 0 at $DIR/issue-72181.rs:+4:13: +4:30
-    let _6: usize;                       // in scope 0 at $DIR/issue-72181.rs:+4:24: +4:25
-    let mut _7: usize;                   // in scope 0 at $DIR/issue-72181.rs:+4:22: +4:26
-    let mut _8: bool;                    // in scope 0 at $DIR/issue-72181.rs:+4:22: +4:26
+    let mut _0: ();                      // return place in scope 0 at $DIR/issue_72181.rs:+0:11: +0:11
+    let mut _1: usize;                   // in scope 0 at $DIR/issue_72181.rs:+1:13: +1:34
+    let mut _3: Foo;                     // in scope 0 at $DIR/issue_72181.rs:+3:14: +3:27
+    let mut _4: Foo;                     // in scope 0 at $DIR/issue_72181.rs:+3:29: +3:42
+    let mut _5: u64;                     // in scope 0 at $DIR/issue_72181.rs:+4:13: +4:30
+    let _6: usize;                       // in scope 0 at $DIR/issue_72181.rs:+4:24: +4:25
+    let mut _7: usize;                   // in scope 0 at $DIR/issue_72181.rs:+4:22: +4:26
+    let mut _8: bool;                    // in scope 0 at $DIR/issue_72181.rs:+4:22: +4:26
     scope 1 {
-        let _2: [Foo; 2];                // in scope 1 at $DIR/issue-72181.rs:+3:9: +3:10
+        let _2: [Foo; 2];                // in scope 1 at $DIR/issue_72181.rs:+3:9: +3:10
         scope 2 {
-            debug f => _2;               // in scope 2 at $DIR/issue-72181.rs:+3:9: +3:10
+            debug f => _2;               // in scope 2 at $DIR/issue_72181.rs:+3:9: +3:10
             scope 3 {
             }
             scope 4 {
@@ -21,42 +21,42 @@ fn main() -> () {
     }
 
     bb0: {
-        StorageLive(_1);                 // scope 0 at $DIR/issue-72181.rs:+1:13: +1:34
-        _1 = std::mem::size_of::<Foo>() -> [return: bb1, unwind: bb3]; // scope 0 at $DIR/issue-72181.rs:+1:13: +1:34
+        StorageLive(_1);                 // scope 0 at $DIR/issue_72181.rs:+1:13: +1:34
+        _1 = std::mem::size_of::<Foo>() -> [return: bb1, unwind: bb3]; // scope 0 at $DIR/issue_72181.rs:+1:13: +1:34
                                          // mir::Constant
-                                         // + span: $DIR/issue-72181.rs:24:13: 24:32
+                                         // + span: $DIR/issue_72181.rs:24:13: 24:32
                                          // + literal: Const { ty: fn() -> usize {std::mem::size_of::<Foo>}, val: Value(<ZST>) }
     }
 
     bb1: {
-        StorageDead(_1);                 // scope 0 at $DIR/issue-72181.rs:+1:34: +1:35
-        StorageLive(_2);                 // scope 1 at $DIR/issue-72181.rs:+3:9: +3:10
-        StorageLive(_3);                 // scope 1 at $DIR/issue-72181.rs:+3:14: +3:27
-        _3 = Foo { a: const 42_u64 };    // scope 1 at $DIR/issue-72181.rs:+3:14: +3:27
-        StorageLive(_4);                 // scope 1 at $DIR/issue-72181.rs:+3:29: +3:42
-        _4 = Foo { a: const 10_u64 };    // scope 1 at $DIR/issue-72181.rs:+3:29: +3:42
-        _2 = [move _3, move _4];         // scope 1 at $DIR/issue-72181.rs:+3:13: +3:43
-        StorageDead(_4);                 // scope 1 at $DIR/issue-72181.rs:+3:42: +3:43
-        StorageDead(_3);                 // scope 1 at $DIR/issue-72181.rs:+3:42: +3:43
-        FakeRead(ForLet(None), _2);      // scope 1 at $DIR/issue-72181.rs:+3:9: +3:10
-        StorageLive(_5);                 // scope 2 at $DIR/issue-72181.rs:+4:13: +4:30
-        StorageLive(_6);                 // scope 4 at $DIR/issue-72181.rs:+4:24: +4:25
-        _6 = const 0_usize;              // scope 4 at $DIR/issue-72181.rs:+4:24: +4:25
-        _7 = Len(_2);                    // scope 4 at $DIR/issue-72181.rs:+4:22: +4:26
-        _8 = Lt(_6, _7);                 // scope 4 at $DIR/issue-72181.rs:+4:22: +4:26
-        assert(move _8, "index out of bounds: the length is {} but the index is {}", move _7, _6) -> [success: bb2, unwind: bb3]; // scope 4 at $DIR/issue-72181.rs:+4:22: +4:26
+        StorageDead(_1);                 // scope 0 at $DIR/issue_72181.rs:+1:34: +1:35
+        StorageLive(_2);                 // scope 1 at $DIR/issue_72181.rs:+3:9: +3:10
+        StorageLive(_3);                 // scope 1 at $DIR/issue_72181.rs:+3:14: +3:27
+        _3 = Foo { a: const 42_u64 };    // scope 1 at $DIR/issue_72181.rs:+3:14: +3:27
+        StorageLive(_4);                 // scope 1 at $DIR/issue_72181.rs:+3:29: +3:42
+        _4 = Foo { a: const 10_u64 };    // scope 1 at $DIR/issue_72181.rs:+3:29: +3:42
+        _2 = [move _3, move _4];         // scope 1 at $DIR/issue_72181.rs:+3:13: +3:43
+        StorageDead(_4);                 // scope 1 at $DIR/issue_72181.rs:+3:42: +3:43
+        StorageDead(_3);                 // scope 1 at $DIR/issue_72181.rs:+3:42: +3:43
+        FakeRead(ForLet(None), _2);      // scope 1 at $DIR/issue_72181.rs:+3:9: +3:10
+        StorageLive(_5);                 // scope 2 at $DIR/issue_72181.rs:+4:13: +4:30
+        StorageLive(_6);                 // scope 4 at $DIR/issue_72181.rs:+4:24: +4:25
+        _6 = const 0_usize;              // scope 4 at $DIR/issue_72181.rs:+4:24: +4:25
+        _7 = Len(_2);                    // scope 4 at $DIR/issue_72181.rs:+4:22: +4:26
+        _8 = Lt(_6, _7);                 // scope 4 at $DIR/issue_72181.rs:+4:22: +4:26
+        assert(move _8, "index out of bounds: the length is {} but the index is {}", move _7, _6) -> [success: bb2, unwind: bb3]; // scope 4 at $DIR/issue_72181.rs:+4:22: +4:26
     }
 
     bb2: {
-        _5 = (_2[_6].0: u64);            // scope 4 at $DIR/issue-72181.rs:+4:22: +4:28
-        StorageDead(_6);                 // scope 2 at $DIR/issue-72181.rs:+4:30: +4:31
-        StorageDead(_5);                 // scope 2 at $DIR/issue-72181.rs:+4:30: +4:31
-        _0 = const ();                   // scope 0 at $DIR/issue-72181.rs:+0:11: +5:2
-        StorageDead(_2);                 // scope 1 at $DIR/issue-72181.rs:+5:1: +5:2
-        return;                          // scope 0 at $DIR/issue-72181.rs:+5:2: +5:2
+        _5 = (_2[_6].0: u64);            // scope 4 at $DIR/issue_72181.rs:+4:22: +4:28
+        StorageDead(_6);                 // scope 2 at $DIR/issue_72181.rs:+4:30: +4:31
+        StorageDead(_5);                 // scope 2 at $DIR/issue_72181.rs:+4:30: +4:31
+        _0 = const ();                   // scope 0 at $DIR/issue_72181.rs:+0:11: +5:2
+        StorageDead(_2);                 // scope 1 at $DIR/issue_72181.rs:+5:1: +5:2
+        return;                          // scope 0 at $DIR/issue_72181.rs:+5:2: +5:2
     }
 
     bb3 (cleanup): {
-        resume;                          // scope 0 at $DIR/issue-72181.rs:+0:1: +5:2
+        resume;                          // scope 0 at $DIR/issue_72181.rs:+0:1: +5:2
     }
 }
diff --git a/src/test/mir-opt/issue-72181.rs b/src/test/mir-opt/issue_72181.rs
similarity index 100%
rename from src/test/mir-opt/issue-72181.rs
rename to src/test/mir-opt/issue_72181.rs
diff --git a/src/test/mir-opt/issue_72181_1.f.built.after.mir b/src/test/mir-opt/issue_72181_1.f.built.after.mir
index 31e997f9b33d9..4086da5201134 100644
--- a/src/test/mir-opt/issue_72181_1.f.built.after.mir
+++ b/src/test/mir-opt/issue_72181_1.f.built.after.mir
@@ -1,29 +1,29 @@
 // MIR for `f` after built
 
 fn f(_1: Void) -> ! {
-    debug v => _1;                       // in scope 0 at $DIR/issue-72181-1.rs:+0:6: +0:7
-    let mut _0: !;                       // return place in scope 0 at $DIR/issue-72181-1.rs:+0:18: +0:19
-    let mut _2: !;                       // in scope 0 at $DIR/issue-72181-1.rs:+0:20: +2:2
-    let mut _3: !;                       // in scope 0 at $DIR/issue-72181-1.rs:+1:5: +1:15
+    debug v => _1;                       // in scope 0 at $DIR/issue_72181_1.rs:+0:6: +0:7
+    let mut _0: !;                       // return place in scope 0 at $DIR/issue_72181_1.rs:+0:18: +0:19
+    let mut _2: !;                       // in scope 0 at $DIR/issue_72181_1.rs:+0:20: +2:2
+    let mut _3: !;                       // in scope 0 at $DIR/issue_72181_1.rs:+1:5: +1:15
 
     bb0: {
-        StorageLive(_2);                 // scope 0 at $DIR/issue-72181-1.rs:+0:20: +2:2
-        StorageLive(_3);                 // scope 0 at $DIR/issue-72181-1.rs:+1:5: +1:15
-        FakeRead(ForMatchedPlace(None), _1); // scope 0 at $DIR/issue-72181-1.rs:+1:11: +1:12
-        unreachable;                     // scope 0 at $DIR/issue-72181-1.rs:+1:11: +1:12
+        StorageLive(_2);                 // scope 0 at $DIR/issue_72181_1.rs:+0:20: +2:2
+        StorageLive(_3);                 // scope 0 at $DIR/issue_72181_1.rs:+1:5: +1:15
+        FakeRead(ForMatchedPlace(None), _1); // scope 0 at $DIR/issue_72181_1.rs:+1:11: +1:12
+        unreachable;                     // scope 0 at $DIR/issue_72181_1.rs:+1:11: +1:12
     }
 
     bb1: {
-        unreachable;                     // scope 0 at $DIR/issue-72181-1.rs:+1:5: +1:15
+        unreachable;                     // scope 0 at $DIR/issue_72181_1.rs:+1:5: +1:15
     }
 
     bb2: {
-        StorageDead(_3);                 // scope 0 at $DIR/issue-72181-1.rs:+1:14: +1:15
-        unreachable;                     // scope 0 at $DIR/issue-72181-1.rs:+0:20: +2:2
+        StorageDead(_3);                 // scope 0 at $DIR/issue_72181_1.rs:+1:14: +1:15
+        unreachable;                     // scope 0 at $DIR/issue_72181_1.rs:+0:20: +2:2
     }
 
     bb3: {
-        StorageDead(_2);                 // scope 0 at $DIR/issue-72181-1.rs:+2:1: +2:2
-        return;                          // scope 0 at $DIR/issue-72181-1.rs:+2:2: +2:2
+        StorageDead(_2);                 // scope 0 at $DIR/issue_72181_1.rs:+2:1: +2:2
+        return;                          // scope 0 at $DIR/issue_72181_1.rs:+2:2: +2:2
     }
 }
diff --git a/src/test/mir-opt/issue_72181_1.main.built.after.mir b/src/test/mir-opt/issue_72181_1.main.built.after.mir
index 65177a81b03b4..2172f3aa9e285 100644
--- a/src/test/mir-opt/issue_72181_1.main.built.after.mir
+++ b/src/test/mir-opt/issue_72181_1.main.built.after.mir
@@ -1,57 +1,57 @@
 // MIR for `main` after built
 
 | User Type Annotations
-| 0: user_ty: Canonical { max_universe: U0, variables: [], value: Ty(Void) }, span: $DIR/issue-72181-1.rs:16:12: 16:16, inferred_ty: Void
-| 1: user_ty: Canonical { max_universe: U0, variables: [], value: Ty(Void) }, span: $DIR/issue-72181-1.rs:16:12: 16:16, inferred_ty: Void
+| 0: user_ty: Canonical { max_universe: U0, variables: [], value: Ty(Void) }, span: $DIR/issue_72181_1.rs:16:12: 16:16, inferred_ty: Void
+| 1: user_ty: Canonical { max_universe: U0, variables: [], value: Ty(Void) }, span: $DIR/issue_72181_1.rs:16:12: 16:16, inferred_ty: Void
 |
 fn main() -> () {
-    let mut _0: ();                      // return place in scope 0 at $DIR/issue-72181-1.rs:+0:11: +0:11
-    let mut _1: !;                       // in scope 0 at $DIR/issue-72181-1.rs:+0:11: +6:2
-    let _2: Void as UserTypeProjection { base: UserType(0), projs: [] }; // in scope 0 at $DIR/issue-72181-1.rs:+1:9: +1:10
-    let mut _3: ();                      // in scope 0 at $DIR/issue-72181-1.rs:+2:41: +2:43
-    let _4: !;                           // in scope 0 at $DIR/issue-72181-1.rs:+5:5: +5:9
-    let mut _5: Void;                    // in scope 0 at $DIR/issue-72181-1.rs:+5:7: +5:8
+    let mut _0: ();                      // return place in scope 0 at $DIR/issue_72181_1.rs:+0:11: +0:11
+    let mut _1: !;                       // in scope 0 at $DIR/issue_72181_1.rs:+0:11: +6:2
+    let _2: Void as UserTypeProjection { base: UserType(0), projs: [] }; // in scope 0 at $DIR/issue_72181_1.rs:+1:9: +1:10
+    let mut _3: ();                      // in scope 0 at $DIR/issue_72181_1.rs:+2:41: +2:43
+    let _4: !;                           // in scope 0 at $DIR/issue_72181_1.rs:+5:5: +5:9
+    let mut _5: Void;                    // in scope 0 at $DIR/issue_72181_1.rs:+5:7: +5:8
     scope 1 {
-        debug v => _2;                   // in scope 1 at $DIR/issue-72181-1.rs:+1:9: +1:10
+        debug v => _2;                   // in scope 1 at $DIR/issue_72181_1.rs:+1:9: +1:10
     }
     scope 2 {
     }
 
     bb0: {
-        StorageLive(_2);                 // scope 0 at $DIR/issue-72181-1.rs:+1:9: +1:10
-        StorageLive(_3);                 // scope 2 at $DIR/issue-72181-1.rs:+2:41: +2:43
-        _3 = ();                         // scope 2 at $DIR/issue-72181-1.rs:+2:41: +2:43
-        _2 = transmute::<(), Void>(move _3) -> bb4; // scope 2 at $DIR/issue-72181-1.rs:+2:9: +2:44
+        StorageLive(_2);                 // scope 0 at $DIR/issue_72181_1.rs:+1:9: +1:10
+        StorageLive(_3);                 // scope 2 at $DIR/issue_72181_1.rs:+2:41: +2:43
+        _3 = ();                         // scope 2 at $DIR/issue_72181_1.rs:+2:41: +2:43
+        _2 = transmute::<(), Void>(move _3) -> bb4; // scope 2 at $DIR/issue_72181_1.rs:+2:9: +2:44
                                          // mir::Constant
-                                         // + span: $DIR/issue-72181-1.rs:17:9: 17:40
+                                         // + span: $DIR/issue_72181_1.rs:17:9: 17:40
                                          // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(()) -> Void {transmute::<(), Void>}, val: Value(<ZST>) }
     }
 
     bb1: {
-        StorageDead(_3);                 // scope 2 at $DIR/issue-72181-1.rs:+2:43: +2:44
-        FakeRead(ForLet(None), _2);      // scope 0 at $DIR/issue-72181-1.rs:+1:9: +1:10
-        AscribeUserType(_2, o, UserTypeProjection { base: UserType(1), projs: [] }); // scope 0 at $DIR/issue-72181-1.rs:+1:12: +1:16
-        StorageLive(_4);                 // scope 1 at $DIR/issue-72181-1.rs:+5:5: +5:9
-        StorageLive(_5);                 // scope 1 at $DIR/issue-72181-1.rs:+5:7: +5:8
-        _5 = move _2;                    // scope 1 at $DIR/issue-72181-1.rs:+5:7: +5:8
-        _4 = f(move _5) -> bb4;          // scope 1 at $DIR/issue-72181-1.rs:+5:5: +5:9
+        StorageDead(_3);                 // scope 2 at $DIR/issue_72181_1.rs:+2:43: +2:44
+        FakeRead(ForLet(None), _2);      // scope 0 at $DIR/issue_72181_1.rs:+1:9: +1:10
+        AscribeUserType(_2, o, UserTypeProjection { base: UserType(1), projs: [] }); // scope 0 at $DIR/issue_72181_1.rs:+1:12: +1:16
+        StorageLive(_4);                 // scope 1 at $DIR/issue_72181_1.rs:+5:5: +5:9
+        StorageLive(_5);                 // scope 1 at $DIR/issue_72181_1.rs:+5:7: +5:8
+        _5 = move _2;                    // scope 1 at $DIR/issue_72181_1.rs:+5:7: +5:8
+        _4 = f(move _5) -> bb4;          // scope 1 at $DIR/issue_72181_1.rs:+5:5: +5:9
                                          // mir::Constant
-                                         // + span: $DIR/issue-72181-1.rs:20:5: 20:6
+                                         // + span: $DIR/issue_72181_1.rs:20:5: 20:6
                                          // + literal: Const { ty: fn(Void) -> ! {f}, val: Value(<ZST>) }
     }
 
     bb2: {
-        StorageDead(_5);                 // scope 1 at $DIR/issue-72181-1.rs:+5:8: +5:9
-        StorageDead(_4);                 // scope 1 at $DIR/issue-72181-1.rs:+5:9: +5:10
-        StorageDead(_2);                 // scope 0 at $DIR/issue-72181-1.rs:+6:1: +6:2
-        unreachable;                     // scope 0 at $DIR/issue-72181-1.rs:+0:11: +6:2
+        StorageDead(_5);                 // scope 1 at $DIR/issue_72181_1.rs:+5:8: +5:9
+        StorageDead(_4);                 // scope 1 at $DIR/issue_72181_1.rs:+5:9: +5:10
+        StorageDead(_2);                 // scope 0 at $DIR/issue_72181_1.rs:+6:1: +6:2
+        unreachable;                     // scope 0 at $DIR/issue_72181_1.rs:+0:11: +6:2
     }
 
     bb3: {
-        return;                          // scope 0 at $DIR/issue-72181-1.rs:+6:2: +6:2
+        return;                          // scope 0 at $DIR/issue_72181_1.rs:+6:2: +6:2
     }
 
     bb4 (cleanup): {
-        resume;                          // scope 0 at $DIR/issue-72181-1.rs:+0:1: +6:2
+        resume;                          // scope 0 at $DIR/issue_72181_1.rs:+0:1: +6:2
     }
 }
diff --git a/src/test/mir-opt/issue-72181-1.rs b/src/test/mir-opt/issue_72181_1.rs
similarity index 100%
rename from src/test/mir-opt/issue-72181-1.rs
rename to src/test/mir-opt/issue_72181_1.rs
diff --git a/src/test/mir-opt/issue_73223.main.SimplifyArmIdentity.diff b/src/test/mir-opt/issue_73223.main.SimplifyArmIdentity.diff
index 269e4e3261751..c9a9511586d78 100644
--- a/src/test/mir-opt/issue_73223.main.SimplifyArmIdentity.diff
+++ b/src/test/mir-opt/issue_73223.main.SimplifyArmIdentity.diff
@@ -2,18 +2,18 @@
 + // MIR for `main` after SimplifyArmIdentity
   
   fn main() -> () {
-      let mut _0: ();                      // return place in scope 0 at $DIR/issue-73223.rs:+0:11: +0:11
-      let _1: i32;                         // in scope 0 at $DIR/issue-73223.rs:+1:9: +1:14
-      let mut _2: std::option::Option<i32>; // in scope 0 at $DIR/issue-73223.rs:+1:23: +1:30
-      let mut _3: isize;                   // in scope 0 at $DIR/issue-73223.rs:+2:9: +2:16
-      let _4: i32;                         // in scope 0 at $DIR/issue-73223.rs:+2:14: +2:15
-      let mut _5: !;                       // in scope 0 at $DIR/issue-73223.rs:+3:17: +3:23
-      let mut _7: i32;                     // in scope 0 at $DIR/issue-73223.rs:+6:22: +6:27
+      let mut _0: ();                      // return place in scope 0 at $DIR/issue_73223.rs:+0:11: +0:11
+      let _1: i32;                         // in scope 0 at $DIR/issue_73223.rs:+1:9: +1:14
+      let mut _2: std::option::Option<i32>; // in scope 0 at $DIR/issue_73223.rs:+1:23: +1:30
+      let mut _3: isize;                   // in scope 0 at $DIR/issue_73223.rs:+2:9: +2:16
+      let _4: i32;                         // in scope 0 at $DIR/issue_73223.rs:+2:14: +2:15
+      let mut _5: !;                       // in scope 0 at $DIR/issue_73223.rs:+3:17: +3:23
+      let mut _7: i32;                     // in scope 0 at $DIR/issue_73223.rs:+6:22: +6:27
       let _8: ();                          // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
       let mut _9: (&i32, &i32);            // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
       let mut _10: &i32;                   // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
       let mut _11: &i32;                   // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
-      let _12: i32;                        // in scope 0 at $DIR/issue-73223.rs:+7:23: +7:24
+      let _12: i32;                        // in scope 0 at $DIR/issue_73223.rs:+7:23: +7:24
       let mut _15: bool;                   // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
       let mut _16: bool;                   // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
       let mut _17: i32;                    // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
@@ -27,10 +27,10 @@
       let _26: &i32;                       // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
       let mut _27: std::option::Option<std::fmt::Arguments<'_>>; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
       scope 1 {
-          debug split => _1;               // in scope 1 at $DIR/issue-73223.rs:+1:9: +1:14
-          let _6: std::option::Option<i32>; // in scope 1 at $DIR/issue-73223.rs:+6:9: +6:14
+          debug split => _1;               // in scope 1 at $DIR/issue_73223.rs:+1:9: +1:14
+          let _6: std::option::Option<i32>; // in scope 1 at $DIR/issue_73223.rs:+6:9: +6:14
           scope 3 {
-              debug _prev => _6;           // in scope 3 at $DIR/issue-73223.rs:+6:9: +6:14
+              debug _prev => _6;           // in scope 3 at $DIR/issue_73223.rs:+6:9: +6:14
               let _13: &i32;               // in scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
               let _14: &i32;               // in scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
               let mut _28: &i32;           // in scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
@@ -45,43 +45,43 @@
           }
       }
       scope 2 {
-          debug v => _4;                   // in scope 2 at $DIR/issue-73223.rs:+2:14: +2:15
+          debug v => _4;                   // in scope 2 at $DIR/issue_73223.rs:+2:14: +2:15
       }
   
       bb0: {
-          StorageLive(_1);                 // scope 0 at $DIR/issue-73223.rs:+1:9: +1:14
-          StorageLive(_2);                 // scope 0 at $DIR/issue-73223.rs:+1:23: +1:30
-          Deinit(_2);                      // scope 0 at $DIR/issue-73223.rs:+1:23: +1:30
-          ((_2 as Some).0: i32) = const 1_i32; // scope 0 at $DIR/issue-73223.rs:+1:23: +1:30
-          discriminant(_2) = 1;            // scope 0 at $DIR/issue-73223.rs:+1:23: +1:30
-          _3 = const 1_isize;              // scope 0 at $DIR/issue-73223.rs:+1:23: +1:30
-          goto -> bb3;                     // scope 0 at $DIR/issue-73223.rs:+1:17: +1:30
+          StorageLive(_1);                 // scope 0 at $DIR/issue_73223.rs:+1:9: +1:14
+          StorageLive(_2);                 // scope 0 at $DIR/issue_73223.rs:+1:23: +1:30
+          Deinit(_2);                      // scope 0 at $DIR/issue_73223.rs:+1:23: +1:30
+          ((_2 as Some).0: i32) = const 1_i32; // scope 0 at $DIR/issue_73223.rs:+1:23: +1:30
+          discriminant(_2) = 1;            // scope 0 at $DIR/issue_73223.rs:+1:23: +1:30
+          _3 = const 1_isize;              // scope 0 at $DIR/issue_73223.rs:+1:23: +1:30
+          goto -> bb3;                     // scope 0 at $DIR/issue_73223.rs:+1:17: +1:30
       }
   
       bb1: {
-          nop;                             // scope 0 at $DIR/issue-73223.rs:+3:17: +3:23
-          StorageDead(_2);                 // scope 0 at $DIR/issue-73223.rs:+4:6: +4:7
-          StorageDead(_1);                 // scope 0 at $DIR/issue-73223.rs:+8:1: +8:2
-          return;                          // scope 0 at $DIR/issue-73223.rs:+8:2: +8:2
+          nop;                             // scope 0 at $DIR/issue_73223.rs:+3:17: +3:23
+          StorageDead(_2);                 // scope 0 at $DIR/issue_73223.rs:+4:6: +4:7
+          StorageDead(_1);                 // scope 0 at $DIR/issue_73223.rs:+8:1: +8:2
+          return;                          // scope 0 at $DIR/issue_73223.rs:+8:2: +8:2
       }
   
       bb2: {
-          unreachable;                     // scope 0 at $DIR/issue-73223.rs:+1:23: +1:30
+          unreachable;                     // scope 0 at $DIR/issue_73223.rs:+1:23: +1:30
       }
   
       bb3: {
-          StorageLive(_4);                 // scope 0 at $DIR/issue-73223.rs:+2:14: +2:15
-          _4 = ((_2 as Some).0: i32);      // scope 0 at $DIR/issue-73223.rs:+2:14: +2:15
-          _1 = _4;                         // scope 2 at $DIR/issue-73223.rs:+2:20: +2:21
-          StorageDead(_4);                 // scope 0 at $DIR/issue-73223.rs:+2:20: +2:21
-          StorageDead(_2);                 // scope 0 at $DIR/issue-73223.rs:+4:6: +4:7
-          StorageLive(_6);                 // scope 1 at $DIR/issue-73223.rs:+6:9: +6:14
-          StorageLive(_7);                 // scope 1 at $DIR/issue-73223.rs:+6:22: +6:27
-          _7 = _1;                         // scope 1 at $DIR/issue-73223.rs:+6:22: +6:27
-          Deinit(_6);                      // scope 1 at $DIR/issue-73223.rs:+6:17: +6:28
-          ((_6 as Some).0: i32) = move _7; // scope 1 at $DIR/issue-73223.rs:+6:17: +6:28
-          discriminant(_6) = 1;            // scope 1 at $DIR/issue-73223.rs:+6:17: +6:28
-          StorageDead(_7);                 // scope 1 at $DIR/issue-73223.rs:+6:27: +6:28
+          StorageLive(_4);                 // scope 0 at $DIR/issue_73223.rs:+2:14: +2:15
+          _4 = ((_2 as Some).0: i32);      // scope 0 at $DIR/issue_73223.rs:+2:14: +2:15
+          _1 = _4;                         // scope 2 at $DIR/issue_73223.rs:+2:20: +2:21
+          StorageDead(_4);                 // scope 0 at $DIR/issue_73223.rs:+2:20: +2:21
+          StorageDead(_2);                 // scope 0 at $DIR/issue_73223.rs:+4:6: +4:7
+          StorageLive(_6);                 // scope 1 at $DIR/issue_73223.rs:+6:9: +6:14
+          StorageLive(_7);                 // scope 1 at $DIR/issue_73223.rs:+6:22: +6:27
+          _7 = _1;                         // scope 1 at $DIR/issue_73223.rs:+6:22: +6:27
+          Deinit(_6);                      // scope 1 at $DIR/issue_73223.rs:+6:17: +6:28
+          ((_6 as Some).0: i32) = move _7; // scope 1 at $DIR/issue_73223.rs:+6:17: +6:28
+          discriminant(_6) = 1;            // scope 1 at $DIR/issue_73223.rs:+6:17: +6:28
+          StorageDead(_7);                 // scope 1 at $DIR/issue_73223.rs:+6:27: +6:28
           StorageLive(_8);                 // scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
           StorageLive(_9);                 // scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
           StorageLive(_10);                // scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
@@ -152,10 +152,10 @@
           StorageDead(_13);                // scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
           StorageDead(_9);                 // scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
           StorageDead(_8);                 // scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
-          nop;                             // scope 0 at $DIR/issue-73223.rs:+0:11: +8:2
-          StorageDead(_6);                 // scope 1 at $DIR/issue-73223.rs:+8:1: +8:2
-          StorageDead(_1);                 // scope 0 at $DIR/issue-73223.rs:+8:1: +8:2
-          return;                          // scope 0 at $DIR/issue-73223.rs:+8:2: +8:2
+          nop;                             // scope 0 at $DIR/issue_73223.rs:+0:11: +8:2
+          StorageDead(_6);                 // scope 1 at $DIR/issue_73223.rs:+8:1: +8:2
+          StorageDead(_1);                 // scope 0 at $DIR/issue_73223.rs:+8:1: +8:2
+          return;                          // scope 0 at $DIR/issue_73223.rs:+8:2: +8:2
       }
   }
   
diff --git a/src/test/mir-opt/issue-73223.rs b/src/test/mir-opt/issue_73223.rs
similarity index 100%
rename from src/test/mir-opt/issue-73223.rs
rename to src/test/mir-opt/issue_73223.rs
diff --git a/src/test/mir-opt/issue_78192.f.InstCombine.diff b/src/test/mir-opt/issue_78192.f.InstCombine.diff
index 8ec94d65fda52..116ca304c9939 100644
--- a/src/test/mir-opt/issue_78192.f.InstCombine.diff
+++ b/src/test/mir-opt/issue_78192.f.InstCombine.diff
@@ -2,28 +2,28 @@
 + // MIR for `f` after InstCombine
   
   fn f(_1: &T) -> *const T {
-      debug a => _1;                       // in scope 0 at $DIR/issue-78192.rs:+0:13: +0:14
-      let mut _0: *const T;                // return place in scope 0 at $DIR/issue-78192.rs:+0:23: +0:31
-      let _2: &*const T;                   // in scope 0 at $DIR/issue-78192.rs:+1:9: +1:10
-      let _3: &*const T;                   // in scope 0 at $DIR/issue-78192.rs:+1:24: +1:40
-      let _4: *const T;                    // in scope 0 at $DIR/issue-78192.rs:+1:25: +1:40
+      debug a => _1;                       // in scope 0 at $DIR/issue_78192.rs:+0:13: +0:14
+      let mut _0: *const T;                // return place in scope 0 at $DIR/issue_78192.rs:+0:23: +0:31
+      let _2: &*const T;                   // in scope 0 at $DIR/issue_78192.rs:+1:9: +1:10
+      let _3: &*const T;                   // in scope 0 at $DIR/issue_78192.rs:+1:24: +1:40
+      let _4: *const T;                    // in scope 0 at $DIR/issue_78192.rs:+1:25: +1:40
       scope 1 {
-          debug b => _2;                   // in scope 1 at $DIR/issue-78192.rs:+1:9: +1:10
+          debug b => _2;                   // in scope 1 at $DIR/issue_78192.rs:+1:9: +1:10
       }
   
       bb0: {
-          StorageLive(_2);                 // scope 0 at $DIR/issue-78192.rs:+1:9: +1:10
-          StorageLive(_3);                 // scope 0 at $DIR/issue-78192.rs:+1:24: +1:40
-          StorageLive(_4);                 // scope 0 at $DIR/issue-78192.rs:+1:25: +1:40
-          _4 = &raw const (*_1);           // scope 0 at $DIR/issue-78192.rs:+1:26: +1:27
-          _3 = &_4;                        // scope 0 at $DIR/issue-78192.rs:+1:24: +1:40
--         _2 = &(*_3);                     // scope 0 at $DIR/issue-78192.rs:+1:24: +1:40
-+         _2 = _3;                         // scope 0 at $DIR/issue-78192.rs:+1:24: +1:40
-          StorageDead(_3);                 // scope 0 at $DIR/issue-78192.rs:+1:40: +1:41
-          _0 = (*_2);                      // scope 1 at $DIR/issue-78192.rs:+2:5: +2:7
-          StorageDead(_4);                 // scope 0 at $DIR/issue-78192.rs:+3:1: +3:2
-          StorageDead(_2);                 // scope 0 at $DIR/issue-78192.rs:+3:1: +3:2
-          return;                          // scope 0 at $DIR/issue-78192.rs:+3:2: +3:2
+          StorageLive(_2);                 // scope 0 at $DIR/issue_78192.rs:+1:9: +1:10
+          StorageLive(_3);                 // scope 0 at $DIR/issue_78192.rs:+1:24: +1:40
+          StorageLive(_4);                 // scope 0 at $DIR/issue_78192.rs:+1:25: +1:40
+          _4 = &raw const (*_1);           // scope 0 at $DIR/issue_78192.rs:+1:26: +1:27
+          _3 = &_4;                        // scope 0 at $DIR/issue_78192.rs:+1:24: +1:40
+-         _2 = &(*_3);                     // scope 0 at $DIR/issue_78192.rs:+1:24: +1:40
++         _2 = _3;                         // scope 0 at $DIR/issue_78192.rs:+1:24: +1:40
+          StorageDead(_3);                 // scope 0 at $DIR/issue_78192.rs:+1:40: +1:41
+          _0 = (*_2);                      // scope 1 at $DIR/issue_78192.rs:+2:5: +2:7
+          StorageDead(_4);                 // scope 0 at $DIR/issue_78192.rs:+3:1: +3:2
+          StorageDead(_2);                 // scope 0 at $DIR/issue_78192.rs:+3:1: +3:2
+          return;                          // scope 0 at $DIR/issue_78192.rs:+3:2: +3:2
       }
   }
   
diff --git a/src/test/mir-opt/issue-78192.rs b/src/test/mir-opt/issue_78192.rs
similarity index 100%
rename from src/test/mir-opt/issue-78192.rs
rename to src/test/mir-opt/issue_78192.rs
diff --git a/src/test/mir-opt/issue_91633.bar.built.after.mir b/src/test/mir-opt/issue_91633.bar.built.after.mir
index 19b1b6fe12b8b..c3fb90e84024e 100644
--- a/src/test/mir-opt/issue_91633.bar.built.after.mir
+++ b/src/test/mir-opt/issue_91633.bar.built.after.mir
@@ -1,39 +1,39 @@
 // MIR for `bar` after built
 
 fn bar(_1: Box<[T]>) -> () {
-    debug it => _1;                      // in scope 0 at $DIR/issue-91633.rs:+0:12: +0:14
-    let mut _0: ();                      // return place in scope 0 at $DIR/issue-91633.rs:+1:2: +1:2
-    let mut _2: &<[T] as std::ops::Index<usize>>::Output; // in scope 0 at $DIR/issue-91633.rs:+4:14: +4:19
-    let mut _3: &[T];                    // in scope 0 at $DIR/issue-91633.rs:+4:14: +4:16
+    debug it => _1;                      // in scope 0 at $DIR/issue_91633.rs:+0:12: +0:14
+    let mut _0: ();                      // return place in scope 0 at $DIR/issue_91633.rs:+1:2: +1:2
+    let mut _2: &<[T] as std::ops::Index<usize>>::Output; // in scope 0 at $DIR/issue_91633.rs:+4:14: +4:19
+    let mut _3: &[T];                    // in scope 0 at $DIR/issue_91633.rs:+4:14: +4:16
     scope 1 {
     }
 
     bb0: {
-        StorageLive(_2);                 // scope 0 at $DIR/issue-91633.rs:+4:14: +4:19
-        StorageLive(_3);                 // scope 0 at $DIR/issue-91633.rs:+4:14: +4:16
-        _3 = &(*_1);                     // scope 0 at $DIR/issue-91633.rs:+4:14: +4:16
-        _2 = <[T] as Index<usize>>::index(move _3, const 0_usize) -> [return: bb1, unwind: bb3]; // scope 0 at $DIR/issue-91633.rs:+4:14: +4:19
+        StorageLive(_2);                 // scope 0 at $DIR/issue_91633.rs:+4:14: +4:19
+        StorageLive(_3);                 // scope 0 at $DIR/issue_91633.rs:+4:14: +4:16
+        _3 = &(*_1);                     // scope 0 at $DIR/issue_91633.rs:+4:14: +4:16
+        _2 = <[T] as Index<usize>>::index(move _3, const 0_usize) -> [return: bb1, unwind: bb3]; // scope 0 at $DIR/issue_91633.rs:+4:14: +4:19
                                          // mir::Constant
-                                         // + span: $DIR/issue-91633.rs:15:14: 15:19
+                                         // + span: $DIR/issue_91633.rs:15:14: 15:19
                                          // + literal: Const { ty: for<'a> fn(&'a [T], usize) -> &'a <[T] as Index<usize>>::Output {<[T] as Index<usize>>::index}, val: Value(<ZST>) }
     }
 
     bb1: {
-        StorageDead(_3);                 // scope 0 at $DIR/issue-91633.rs:+4:18: +4:19
-        StorageDead(_2);                 // scope 0 at $DIR/issue-91633.rs:+4:19: +4:20
-        _0 = const ();                   // scope 0 at $DIR/issue-91633.rs:+3:2: +5:3
-        drop(_1) -> [return: bb2, unwind: bb4]; // scope 0 at $DIR/issue-91633.rs:+5:2: +5:3
+        StorageDead(_3);                 // scope 0 at $DIR/issue_91633.rs:+4:18: +4:19
+        StorageDead(_2);                 // scope 0 at $DIR/issue_91633.rs:+4:19: +4:20
+        _0 = const ();                   // scope 0 at $DIR/issue_91633.rs:+3:2: +5:3
+        drop(_1) -> [return: bb2, unwind: bb4]; // scope 0 at $DIR/issue_91633.rs:+5:2: +5:3
     }
 
     bb2: {
-        return;                          // scope 0 at $DIR/issue-91633.rs:+5:3: +5:3
+        return;                          // scope 0 at $DIR/issue_91633.rs:+5:3: +5:3
     }
 
     bb3 (cleanup): {
-        drop(_1) -> bb4;                 // scope 0 at $DIR/issue-91633.rs:+5:2: +5:3
+        drop(_1) -> bb4;                 // scope 0 at $DIR/issue_91633.rs:+5:2: +5:3
     }
 
     bb4 (cleanup): {
-        resume;                          // scope 0 at $DIR/issue-91633.rs:+0:1: +5:3
+        resume;                          // scope 0 at $DIR/issue_91633.rs:+0:1: +5:3
     }
 }
diff --git a/src/test/mir-opt/issue_91633.foo.built.after.mir b/src/test/mir-opt/issue_91633.foo.built.after.mir
index 1a6eee93d3689..4e3dd365e924f 100644
--- a/src/test/mir-opt/issue_91633.foo.built.after.mir
+++ b/src/test/mir-opt/issue_91633.foo.built.after.mir
@@ -1,57 +1,57 @@
 // MIR for `foo` after built
 
 fn foo(_1: Box<[T]>) -> T {
-    debug it => _1;                      // in scope 0 at $DIR/issue-91633.rs:+0:19: +0:21
-    let mut _0: T;                       // return place in scope 0 at $DIR/issue-91633.rs:+0:36: +0:37
-    let _2: T;                           // in scope 0 at $DIR/issue-91633.rs:+2:10: +2:11
-    let mut _3: &T;                      // in scope 0 at $DIR/issue-91633.rs:+2:14: +2:27
-    let _4: usize;                       // in scope 0 at $DIR/issue-91633.rs:+2:17: +2:18
-    let mut _5: usize;                   // in scope 0 at $DIR/issue-91633.rs:+2:14: +2:19
-    let mut _6: bool;                    // in scope 0 at $DIR/issue-91633.rs:+2:14: +2:19
+    debug it => _1;                      // in scope 0 at $DIR/issue_91633.rs:+0:19: +0:21
+    let mut _0: T;                       // return place in scope 0 at $DIR/issue_91633.rs:+0:36: +0:37
+    let _2: T;                           // in scope 0 at $DIR/issue_91633.rs:+2:10: +2:11
+    let mut _3: &T;                      // in scope 0 at $DIR/issue_91633.rs:+2:14: +2:27
+    let _4: usize;                       // in scope 0 at $DIR/issue_91633.rs:+2:17: +2:18
+    let mut _5: usize;                   // in scope 0 at $DIR/issue_91633.rs:+2:14: +2:19
+    let mut _6: bool;                    // in scope 0 at $DIR/issue_91633.rs:+2:14: +2:19
     scope 1 {
-        debug f => _2;                   // in scope 1 at $DIR/issue-91633.rs:+2:10: +2:11
+        debug f => _2;                   // in scope 1 at $DIR/issue_91633.rs:+2:10: +2:11
     }
 
     bb0: {
-        StorageLive(_2);                 // scope 0 at $DIR/issue-91633.rs:+2:10: +2:11
-        StorageLive(_3);                 // scope 0 at $DIR/issue-91633.rs:+2:14: +2:27
-        StorageLive(_4);                 // scope 0 at $DIR/issue-91633.rs:+2:17: +2:18
-        _4 = const 0_usize;              // scope 0 at $DIR/issue-91633.rs:+2:17: +2:18
-        _5 = Len((*_1));                 // scope 0 at $DIR/issue-91633.rs:+2:14: +2:19
-        _6 = Lt(_4, _5);                 // scope 0 at $DIR/issue-91633.rs:+2:14: +2:19
-        assert(move _6, "index out of bounds: the length is {} but the index is {}", move _5, _4) -> [success: bb1, unwind: bb5]; // scope 0 at $DIR/issue-91633.rs:+2:14: +2:19
+        StorageLive(_2);                 // scope 0 at $DIR/issue_91633.rs:+2:10: +2:11
+        StorageLive(_3);                 // scope 0 at $DIR/issue_91633.rs:+2:14: +2:27
+        StorageLive(_4);                 // scope 0 at $DIR/issue_91633.rs:+2:17: +2:18
+        _4 = const 0_usize;              // scope 0 at $DIR/issue_91633.rs:+2:17: +2:18
+        _5 = Len((*_1));                 // scope 0 at $DIR/issue_91633.rs:+2:14: +2:19
+        _6 = Lt(_4, _5);                 // scope 0 at $DIR/issue_91633.rs:+2:14: +2:19
+        assert(move _6, "index out of bounds: the length is {} but the index is {}", move _5, _4) -> [success: bb1, unwind: bb5]; // scope 0 at $DIR/issue_91633.rs:+2:14: +2:19
     }
 
     bb1: {
-        _3 = &(*_1)[_4];                 // scope 0 at $DIR/issue-91633.rs:+2:14: +2:27
-        _2 = <T as Clone>::clone(move _3) -> [return: bb2, unwind: bb5]; // scope 0 at $DIR/issue-91633.rs:+2:14: +2:27
+        _3 = &(*_1)[_4];                 // scope 0 at $DIR/issue_91633.rs:+2:14: +2:27
+        _2 = <T as Clone>::clone(move _3) -> [return: bb2, unwind: bb5]; // scope 0 at $DIR/issue_91633.rs:+2:14: +2:27
                                          // mir::Constant
-                                         // + span: $DIR/issue-91633.rs:28:20: 28:25
+                                         // + span: $DIR/issue_91633.rs:28:20: 28:25
                                          // + literal: Const { ty: for<'a> fn(&'a T) -> T {<T as Clone>::clone}, val: Value(<ZST>) }
     }
 
     bb2: {
-        StorageDead(_3);                 // scope 0 at $DIR/issue-91633.rs:+2:26: +2:27
-        FakeRead(ForLet(None), _2);      // scope 0 at $DIR/issue-91633.rs:+2:10: +2:11
-        StorageDead(_4);                 // scope 0 at $DIR/issue-91633.rs:+2:27: +2:28
-        _0 = move _2;                    // scope 1 at $DIR/issue-91633.rs:+3:6: +3:7
-        drop(_2) -> [return: bb3, unwind: bb5]; // scope 0 at $DIR/issue-91633.rs:+4:2: +4:3
+        StorageDead(_3);                 // scope 0 at $DIR/issue_91633.rs:+2:26: +2:27
+        FakeRead(ForLet(None), _2);      // scope 0 at $DIR/issue_91633.rs:+2:10: +2:11
+        StorageDead(_4);                 // scope 0 at $DIR/issue_91633.rs:+2:27: +2:28
+        _0 = move _2;                    // scope 1 at $DIR/issue_91633.rs:+3:6: +3:7
+        drop(_2) -> [return: bb3, unwind: bb5]; // scope 0 at $DIR/issue_91633.rs:+4:2: +4:3
     }
 
     bb3: {
-        StorageDead(_2);                 // scope 0 at $DIR/issue-91633.rs:+4:2: +4:3
-        drop(_1) -> [return: bb4, unwind: bb6]; // scope 0 at $DIR/issue-91633.rs:+4:2: +4:3
+        StorageDead(_2);                 // scope 0 at $DIR/issue_91633.rs:+4:2: +4:3
+        drop(_1) -> [return: bb4, unwind: bb6]; // scope 0 at $DIR/issue_91633.rs:+4:2: +4:3
     }
 
     bb4: {
-        return;                          // scope 0 at $DIR/issue-91633.rs:+4:3: +4:3
+        return;                          // scope 0 at $DIR/issue_91633.rs:+4:3: +4:3
     }
 
     bb5 (cleanup): {
-        drop(_1) -> bb6;                 // scope 0 at $DIR/issue-91633.rs:+4:2: +4:3
+        drop(_1) -> bb6;                 // scope 0 at $DIR/issue_91633.rs:+4:2: +4:3
     }
 
     bb6 (cleanup): {
-        resume;                          // scope 0 at $DIR/issue-91633.rs:+0:1: +4:3
+        resume;                          // scope 0 at $DIR/issue_91633.rs:+0:1: +4:3
     }
 }
diff --git a/src/test/mir-opt/issue_91633.fun.built.after.mir b/src/test/mir-opt/issue_91633.fun.built.after.mir
index b3eea60033011..42486d3a50e38 100644
--- a/src/test/mir-opt/issue_91633.fun.built.after.mir
+++ b/src/test/mir-opt/issue_91633.fun.built.after.mir
@@ -1,35 +1,35 @@
 // MIR for `fun` after built
 
 fn fun(_1: &[T]) -> &T {
-    debug it => _1;                      // in scope 0 at $DIR/issue-91633.rs:+0:12: +0:14
-    let mut _0: &T;                      // return place in scope 0 at $DIR/issue-91633.rs:+0:25: +0:27
-    let _2: &T;                          // in scope 0 at $DIR/issue-91633.rs:+2:10: +2:11
-    let _3: usize;                       // in scope 0 at $DIR/issue-91633.rs:+2:18: +2:19
-    let mut _4: usize;                   // in scope 0 at $DIR/issue-91633.rs:+2:15: +2:20
-    let mut _5: bool;                    // in scope 0 at $DIR/issue-91633.rs:+2:15: +2:20
+    debug it => _1;                      // in scope 0 at $DIR/issue_91633.rs:+0:12: +0:14
+    let mut _0: &T;                      // return place in scope 0 at $DIR/issue_91633.rs:+0:25: +0:27
+    let _2: &T;                          // in scope 0 at $DIR/issue_91633.rs:+2:10: +2:11
+    let _3: usize;                       // in scope 0 at $DIR/issue_91633.rs:+2:18: +2:19
+    let mut _4: usize;                   // in scope 0 at $DIR/issue_91633.rs:+2:15: +2:20
+    let mut _5: bool;                    // in scope 0 at $DIR/issue_91633.rs:+2:15: +2:20
     scope 1 {
-        debug f => _2;                   // in scope 1 at $DIR/issue-91633.rs:+2:10: +2:11
+        debug f => _2;                   // in scope 1 at $DIR/issue_91633.rs:+2:10: +2:11
     }
 
     bb0: {
-        StorageLive(_2);                 // scope 0 at $DIR/issue-91633.rs:+2:10: +2:11
-        StorageLive(_3);                 // scope 0 at $DIR/issue-91633.rs:+2:18: +2:19
-        _3 = const 0_usize;              // scope 0 at $DIR/issue-91633.rs:+2:18: +2:19
-        _4 = Len((*_1));                 // scope 0 at $DIR/issue-91633.rs:+2:15: +2:20
-        _5 = Lt(_3, _4);                 // scope 0 at $DIR/issue-91633.rs:+2:15: +2:20
-        assert(move _5, "index out of bounds: the length is {} but the index is {}", move _4, _3) -> [success: bb1, unwind: bb2]; // scope 0 at $DIR/issue-91633.rs:+2:15: +2:20
+        StorageLive(_2);                 // scope 0 at $DIR/issue_91633.rs:+2:10: +2:11
+        StorageLive(_3);                 // scope 0 at $DIR/issue_91633.rs:+2:18: +2:19
+        _3 = const 0_usize;              // scope 0 at $DIR/issue_91633.rs:+2:18: +2:19
+        _4 = Len((*_1));                 // scope 0 at $DIR/issue_91633.rs:+2:15: +2:20
+        _5 = Lt(_3, _4);                 // scope 0 at $DIR/issue_91633.rs:+2:15: +2:20
+        assert(move _5, "index out of bounds: the length is {} but the index is {}", move _4, _3) -> [success: bb1, unwind: bb2]; // scope 0 at $DIR/issue_91633.rs:+2:15: +2:20
     }
 
     bb1: {
-        _2 = &(*_1)[_3];                 // scope 0 at $DIR/issue-91633.rs:+2:14: +2:20
-        FakeRead(ForLet(None), _2);      // scope 0 at $DIR/issue-91633.rs:+2:10: +2:11
-        _0 = &(*_2);                     // scope 1 at $DIR/issue-91633.rs:+3:6: +3:7
-        StorageDead(_3);                 // scope 0 at $DIR/issue-91633.rs:+4:2: +4:3
-        StorageDead(_2);                 // scope 0 at $DIR/issue-91633.rs:+4:2: +4:3
-        return;                          // scope 0 at $DIR/issue-91633.rs:+4:3: +4:3
+        _2 = &(*_1)[_3];                 // scope 0 at $DIR/issue_91633.rs:+2:14: +2:20
+        FakeRead(ForLet(None), _2);      // scope 0 at $DIR/issue_91633.rs:+2:10: +2:11
+        _0 = &(*_2);                     // scope 1 at $DIR/issue_91633.rs:+3:6: +3:7
+        StorageDead(_3);                 // scope 0 at $DIR/issue_91633.rs:+4:2: +4:3
+        StorageDead(_2);                 // scope 0 at $DIR/issue_91633.rs:+4:2: +4:3
+        return;                          // scope 0 at $DIR/issue_91633.rs:+4:3: +4:3
     }
 
     bb2 (cleanup): {
-        resume;                          // scope 0 at $DIR/issue-91633.rs:+0:1: +4:3
+        resume;                          // scope 0 at $DIR/issue_91633.rs:+0:1: +4:3
     }
 }
diff --git a/src/test/mir-opt/issue_91633.hey.built.after.mir b/src/test/mir-opt/issue_91633.hey.built.after.mir
index e7e31ad33c1be..ccb06dd5983f4 100644
--- a/src/test/mir-opt/issue_91633.hey.built.after.mir
+++ b/src/test/mir-opt/issue_91633.hey.built.after.mir
@@ -1,35 +1,35 @@
 // MIR for `hey` after built
 
 fn hey(_1: &[T]) -> () {
-    debug it => _1;                      // in scope 0 at $DIR/issue-91633.rs:+0:12: +0:14
-    let mut _0: ();                      // return place in scope 0 at $DIR/issue-91633.rs:+1:2: +1:2
-    let mut _2: &<[T] as std::ops::Index<usize>>::Output; // in scope 0 at $DIR/issue-91633.rs:+4:14: +4:20
-    let _3: &<[T] as std::ops::Index<usize>>::Output; // in scope 0 at $DIR/issue-91633.rs:+4:15: +4:20
-    let mut _4: &[T];                    // in scope 0 at $DIR/issue-91633.rs:+4:15: +4:17
+    debug it => _1;                      // in scope 0 at $DIR/issue_91633.rs:+0:12: +0:14
+    let mut _0: ();                      // return place in scope 0 at $DIR/issue_91633.rs:+1:2: +1:2
+    let mut _2: &<[T] as std::ops::Index<usize>>::Output; // in scope 0 at $DIR/issue_91633.rs:+4:14: +4:20
+    let _3: &<[T] as std::ops::Index<usize>>::Output; // in scope 0 at $DIR/issue_91633.rs:+4:15: +4:20
+    let mut _4: &[T];                    // in scope 0 at $DIR/issue_91633.rs:+4:15: +4:17
     scope 1 {
     }
 
     bb0: {
-        StorageLive(_2);                 // scope 0 at $DIR/issue-91633.rs:+4:14: +4:20
-        StorageLive(_3);                 // scope 0 at $DIR/issue-91633.rs:+4:15: +4:20
-        StorageLive(_4);                 // scope 0 at $DIR/issue-91633.rs:+4:15: +4:17
-        _4 = &(*_1);                     // scope 0 at $DIR/issue-91633.rs:+4:15: +4:17
-        _3 = <[T] as Index<usize>>::index(move _4, const 0_usize) -> [return: bb1, unwind: bb2]; // scope 0 at $DIR/issue-91633.rs:+4:15: +4:20
+        StorageLive(_2);                 // scope 0 at $DIR/issue_91633.rs:+4:14: +4:20
+        StorageLive(_3);                 // scope 0 at $DIR/issue_91633.rs:+4:15: +4:20
+        StorageLive(_4);                 // scope 0 at $DIR/issue_91633.rs:+4:15: +4:17
+        _4 = &(*_1);                     // scope 0 at $DIR/issue_91633.rs:+4:15: +4:17
+        _3 = <[T] as Index<usize>>::index(move _4, const 0_usize) -> [return: bb1, unwind: bb2]; // scope 0 at $DIR/issue_91633.rs:+4:15: +4:20
                                          // mir::Constant
-                                         // + span: $DIR/issue-91633.rs:7:15: 7:20
+                                         // + span: $DIR/issue_91633.rs:7:15: 7:20
                                          // + literal: Const { ty: for<'a> fn(&'a [T], usize) -> &'a <[T] as Index<usize>>::Output {<[T] as Index<usize>>::index}, val: Value(<ZST>) }
     }
 
     bb1: {
-        StorageDead(_4);                 // scope 0 at $DIR/issue-91633.rs:+4:19: +4:20
-        _2 = &(*_3);                     // scope 0 at $DIR/issue-91633.rs:+4:14: +4:20
-        StorageDead(_2);                 // scope 0 at $DIR/issue-91633.rs:+4:20: +4:21
-        _0 = const ();                   // scope 0 at $DIR/issue-91633.rs:+3:2: +5:3
-        StorageDead(_3);                 // scope 0 at $DIR/issue-91633.rs:+5:2: +5:3
-        return;                          // scope 0 at $DIR/issue-91633.rs:+5:3: +5:3
+        StorageDead(_4);                 // scope 0 at $DIR/issue_91633.rs:+4:19: +4:20
+        _2 = &(*_3);                     // scope 0 at $DIR/issue_91633.rs:+4:14: +4:20
+        StorageDead(_2);                 // scope 0 at $DIR/issue_91633.rs:+4:20: +4:21
+        _0 = const ();                   // scope 0 at $DIR/issue_91633.rs:+3:2: +5:3
+        StorageDead(_3);                 // scope 0 at $DIR/issue_91633.rs:+5:2: +5:3
+        return;                          // scope 0 at $DIR/issue_91633.rs:+5:3: +5:3
     }
 
     bb2 (cleanup): {
-        resume;                          // scope 0 at $DIR/issue-91633.rs:+0:1: +5:3
+        resume;                          // scope 0 at $DIR/issue_91633.rs:+0:1: +5:3
     }
 }
diff --git a/src/test/mir-opt/issue-91633.rs b/src/test/mir-opt/issue_91633.rs
similarity index 100%
rename from src/test/mir-opt/issue-91633.rs
rename to src/test/mir-opt/issue_91633.rs
diff --git a/src/test/mir-opt/issue_99325.main.built.after.mir b/src/test/mir-opt/issue_99325.main.built.after.mir
index f588f06b7e4a3..3db40412b2ef4 100644
--- a/src/test/mir-opt/issue_99325.main.built.after.mir
+++ b/src/test/mir-opt/issue_99325.main.built.after.mir
@@ -1,18 +1,18 @@
 // MIR for `main` after built
 
 | User Type Annotations
-| 0: user_ty: Canonical { max_universe: U0, variables: [], value: TypeOf(DefId(0:3 ~ issue_99325[8f58]::function_with_bytes), UserSubsts { substs: [Const { ty: &'static [u8; 4], kind: Value(Branch([Leaf(0x41), Leaf(0x41), Leaf(0x41), Leaf(0x41)])) }], user_self_ty: None }) }, span: $DIR/issue-99325.rs:10:16: 10:46, inferred_ty: fn() -> &'static [u8] {function_with_bytes::<&*b"AAAA">}
-| 1: user_ty: Canonical { max_universe: U0, variables: [], value: TypeOf(DefId(0:3 ~ issue_99325[8f58]::function_with_bytes), UserSubsts { substs: [Const { ty: &'static [u8; 4], kind: Unevaluated(UnevaluatedConst { def: WithOptConstParam { did: DefId(0:8 ~ issue_99325[8f58]::main::{constant#1}), const_param_did: Some(DefId(0:4 ~ issue_99325[8f58]::function_with_bytes::BYTES)) }, substs: [] }) }], user_self_ty: None }) }, span: $DIR/issue-99325.rs:11:16: 11:68, inferred_ty: fn() -> &'static [u8] {function_with_bytes::<&*b"AAAA">}
+| 0: user_ty: Canonical { max_universe: U0, variables: [], value: TypeOf(DefId(0:3 ~ issue_99325[8f58]::function_with_bytes), UserSubsts { substs: [Const { ty: &'static [u8; 4], kind: Value(Branch([Leaf(0x41), Leaf(0x41), Leaf(0x41), Leaf(0x41)])) }], user_self_ty: None }) }, span: $DIR/issue_99325.rs:10:16: 10:46, inferred_ty: fn() -> &'static [u8] {function_with_bytes::<&*b"AAAA">}
+| 1: user_ty: Canonical { max_universe: U0, variables: [], value: TypeOf(DefId(0:3 ~ issue_99325[8f58]::function_with_bytes), UserSubsts { substs: [Const { ty: &'static [u8; 4], kind: Unevaluated(UnevaluatedConst { def: WithOptConstParam { did: DefId(0:8 ~ issue_99325[8f58]::main::{constant#1}), const_param_did: Some(DefId(0:4 ~ issue_99325[8f58]::function_with_bytes::BYTES)) }, substs: [] }) }], user_self_ty: None }) }, span: $DIR/issue_99325.rs:11:16: 11:68, inferred_ty: fn() -> &'static [u8] {function_with_bytes::<&*b"AAAA">}
 |
 fn main() -> () {
-    let mut _0: ();                      // return place in scope 0 at $DIR/issue-99325.rs:+0:15: +0:15
+    let mut _0: ();                      // return place in scope 0 at $DIR/issue_99325.rs:+0:15: +0:15
     let _1: ();                          // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
     let mut _2: (&&[u8], &&[u8; 4]);     // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
     let mut _3: &&[u8];                  // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
-    let _4: &[u8];                       // in scope 0 at $DIR/issue-99325.rs:+1:16: +1:48
+    let _4: &[u8];                       // in scope 0 at $DIR/issue_99325.rs:+1:16: +1:48
     let mut _5: &&[u8; 4];               // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
-    let _6: &[u8; 4];                    // in scope 0 at $DIR/issue-99325.rs:+1:50: +1:75
-    let _7: [u8; 4];                     // in scope 0 at $DIR/issue-99325.rs:+1:51: +1:75
+    let _6: &[u8; 4];                    // in scope 0 at $DIR/issue_99325.rs:+1:50: +1:75
+    let _7: [u8; 4];                     // in scope 0 at $DIR/issue_99325.rs:+1:51: +1:75
     let _8: &&[u8];                      // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
     let _9: &&[u8; 4];                   // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
     let mut _10: bool;                   // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
@@ -30,9 +30,9 @@ fn main() -> () {
     let _23: ();                         // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
     let mut _24: (&&[u8], &&[u8; 4]);    // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
     let mut _25: &&[u8];                 // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
-    let _26: &[u8];                      // in scope 0 at $DIR/issue-99325.rs:+2:16: +2:70
+    let _26: &[u8];                      // in scope 0 at $DIR/issue_99325.rs:+2:16: +2:70
     let mut _27: &&[u8; 4];              // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
-    let _28: &[u8; 4];                   // in scope 0 at $DIR/issue-99325.rs:+2:72: +2:79
+    let _28: &[u8; 4];                   // in scope 0 at $DIR/issue_99325.rs:+2:72: +2:79
     let _29: &&[u8];                     // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
     let _30: &&[u8; 4];                  // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
     let mut _31: bool;                   // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
@@ -68,10 +68,10 @@ fn main() -> () {
         StorageLive(_1);                 // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
         StorageLive(_2);                 // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
         StorageLive(_3);                 // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
-        StorageLive(_4);                 // scope 0 at $DIR/issue-99325.rs:+1:16: +1:48
-        _4 = function_with_bytes::<&*b"AAAA">() -> [return: bb1, unwind: bb19]; // scope 0 at $DIR/issue-99325.rs:+1:16: +1:48
+        StorageLive(_4);                 // scope 0 at $DIR/issue_99325.rs:+1:16: +1:48
+        _4 = function_with_bytes::<&*b"AAAA">() -> [return: bb1, unwind: bb19]; // scope 0 at $DIR/issue_99325.rs:+1:16: +1:48
                                          // mir::Constant
-                                         // + span: $DIR/issue-99325.rs:10:16: 10:46
+                                         // + span: $DIR/issue_99325.rs:10:16: 10:46
                                          // + user_ty: UserType(0)
                                          // + literal: Const { ty: fn() -> &'static [u8] {function_with_bytes::<&*b"AAAA">}, val: Value(<ZST>) }
     }
@@ -79,10 +79,10 @@ fn main() -> () {
     bb1: {
         _3 = &_4;                        // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
         StorageLive(_5);                 // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
-        StorageLive(_6);                 // scope 0 at $DIR/issue-99325.rs:+1:50: +1:75
-        StorageLive(_7);                 // scope 0 at $DIR/issue-99325.rs:+1:51: +1:75
-        _7 = [const 65_u8, const 65_u8, const 65_u8, const 65_u8]; // scope 0 at $DIR/issue-99325.rs:+1:51: +1:75
-        _6 = &_7;                        // scope 0 at $DIR/issue-99325.rs:+1:50: +1:75
+        StorageLive(_6);                 // scope 0 at $DIR/issue_99325.rs:+1:50: +1:75
+        StorageLive(_7);                 // scope 0 at $DIR/issue_99325.rs:+1:51: +1:75
+        _7 = [const 65_u8, const 65_u8, const 65_u8, const 65_u8]; // scope 0 at $DIR/issue_99325.rs:+1:51: +1:75
+        _6 = &_7;                        // scope 0 at $DIR/issue_99325.rs:+1:50: +1:75
         _5 = &_6;                        // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
         _2 = (move _3, move _5);         // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
         StorageDead(_5);                 // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
@@ -176,10 +176,10 @@ fn main() -> () {
         StorageLive(_23);                // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
         StorageLive(_24);                // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
         StorageLive(_25);                // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
-        StorageLive(_26);                // scope 0 at $DIR/issue-99325.rs:+2:16: +2:70
-        _26 = function_with_bytes::<&*b"AAAA">() -> [return: bb10, unwind: bb19]; // scope 0 at $DIR/issue-99325.rs:+2:16: +2:70
+        StorageLive(_26);                // scope 0 at $DIR/issue_99325.rs:+2:16: +2:70
+        _26 = function_with_bytes::<&*b"AAAA">() -> [return: bb10, unwind: bb19]; // scope 0 at $DIR/issue_99325.rs:+2:16: +2:70
                                          // mir::Constant
-                                         // + span: $DIR/issue-99325.rs:11:16: 11:68
+                                         // + span: $DIR/issue_99325.rs:11:16: 11:68
                                          // + user_ty: UserType(1)
                                          // + literal: Const { ty: fn() -> &'static [u8] {function_with_bytes::<&*b"AAAA">}, val: Value(<ZST>) }
     }
@@ -187,10 +187,10 @@ fn main() -> () {
     bb10: {
         _25 = &_26;                      // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
         StorageLive(_27);                // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
-        StorageLive(_28);                // scope 0 at $DIR/issue-99325.rs:+2:72: +2:79
-        _28 = const b"AAAA";             // scope 0 at $DIR/issue-99325.rs:+2:72: +2:79
+        StorageLive(_28);                // scope 0 at $DIR/issue_99325.rs:+2:72: +2:79
+        _28 = const b"AAAA";             // scope 0 at $DIR/issue_99325.rs:+2:72: +2:79
                                          // mir::Constant
-                                         // + span: $DIR/issue-99325.rs:11:72: 11:79
+                                         // + span: $DIR/issue_99325.rs:11:72: 11:79
                                          // + literal: Const { ty: &[u8; 4], val: Value(Scalar(alloc4)) }
         _27 = &_28;                      // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
         _24 = (move _25, move _27);      // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
@@ -281,12 +281,12 @@ fn main() -> () {
         StorageDead(_26);                // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
         StorageDead(_24);                // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
         StorageDead(_23);                // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
-        _0 = const ();                   // scope 0 at $DIR/issue-99325.rs:+0:15: +3:2
-        return;                          // scope 0 at $DIR/issue-99325.rs:+3:2: +3:2
+        _0 = const ();                   // scope 0 at $DIR/issue_99325.rs:+0:15: +3:2
+        return;                          // scope 0 at $DIR/issue_99325.rs:+3:2: +3:2
     }
 
     bb19 (cleanup): {
-        resume;                          // scope 0 at $DIR/issue-99325.rs:+0:1: +3:2
+        resume;                          // scope 0 at $DIR/issue_99325.rs:+0:1: +3:2
     }
 }
 
diff --git a/src/test/mir-opt/issue-99325.rs b/src/test/mir-opt/issue_99325.rs
similarity index 100%
rename from src/test/mir-opt/issue-99325.rs
rename to src/test/mir-opt/issue_99325.rs
diff --git a/src/test/mir-opt/issues/issue_59352.num_to_digit.PreCodegen.after.mir b/src/test/mir-opt/issues/issue_59352.num_to_digit.PreCodegen.after.mir
index f46c10711f688..1cfa41b4daa49 100644
--- a/src/test/mir-opt/issues/issue_59352.num_to_digit.PreCodegen.after.mir
+++ b/src/test/mir-opt/issues/issue_59352.num_to_digit.PreCodegen.after.mir
@@ -1,14 +1,14 @@
 // MIR for `num_to_digit` after PreCodegen
 
 fn num_to_digit(_1: char) -> u32 {
-    debug num => _1;                     // in scope 0 at $DIR/issue-59352.rs:+0:21: +0:24
-    let mut _0: u32;                     // return place in scope 0 at $DIR/issue-59352.rs:+0:35: +0:38
-    let mut _2: char;                    // in scope 0 at $DIR/issue-59352.rs:+2:8: +2:11
-    let mut _3: std::option::Option<u32>; // in scope 0 at $DIR/issue-59352.rs:+2:26: +2:41
-    let mut _4: char;                    // in scope 0 at $DIR/issue-59352.rs:+2:26: +2:29
-    let mut _5: u32;                     // in scope 0 at $DIR/issue-59352.rs:+2:8: +2:23
+    debug num => _1;                     // in scope 0 at $DIR/issue_59352.rs:+0:21: +0:24
+    let mut _0: u32;                     // return place in scope 0 at $DIR/issue_59352.rs:+0:35: +0:38
+    let mut _2: char;                    // in scope 0 at $DIR/issue_59352.rs:+2:8: +2:11
+    let mut _3: std::option::Option<u32>; // in scope 0 at $DIR/issue_59352.rs:+2:26: +2:41
+    let mut _4: char;                    // in scope 0 at $DIR/issue_59352.rs:+2:26: +2:29
+    let mut _5: u32;                     // in scope 0 at $DIR/issue_59352.rs:+2:8: +2:23
     let mut _12: isize;                  // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
-    scope 1 (inlined char::methods::<impl char>::is_digit) { // at $DIR/issue-59352.rs:14:8: 14:23
+    scope 1 (inlined char::methods::<impl char>::is_digit) { // at $DIR/issue_59352.rs:14:8: 14:23
         debug self => _2;                // in scope 1 at $SRC_DIR/core/src/char/methods.rs:LL:COL
         debug radix => _5;               // in scope 1 at $SRC_DIR/core/src/char/methods.rs:LL:COL
         let mut _6: &std::option::Option<u32>; // in scope 1 at $SRC_DIR/core/src/char/methods.rs:LL:COL
@@ -19,7 +19,7 @@ fn num_to_digit(_1: char) -> u32 {
             let mut _9: isize;           // in scope 2 at $SRC_DIR/core/src/option.rs:LL:COL
         }
     }
-    scope 3 (inlined #[track_caller] Option::<u32>::unwrap) { // at $DIR/issue-59352.rs:14:26: 14:50
+    scope 3 (inlined #[track_caller] Option::<u32>::unwrap) { // at $DIR/issue_59352.rs:14:26: 14:50
         debug self => _3;                // in scope 3 at $SRC_DIR/core/src/option.rs:LL:COL
         let mut _10: isize;              // in scope 3 at $SRC_DIR/core/src/option.rs:LL:COL
         let mut _11: !;                  // in scope 3 at $SRC_DIR/core/src/option.rs:LL:COL
@@ -29,9 +29,9 @@ fn num_to_digit(_1: char) -> u32 {
     }
 
     bb0: {
-        StorageLive(_2);                 // scope 0 at $DIR/issue-59352.rs:+2:8: +2:11
-        _2 = _1;                         // scope 0 at $DIR/issue-59352.rs:+2:8: +2:11
-        StorageLive(_5);                 // scope 0 at $DIR/issue-59352.rs:+2:8: +2:23
+        StorageLive(_2);                 // scope 0 at $DIR/issue_59352.rs:+2:8: +2:11
+        _2 = _1;                         // scope 0 at $DIR/issue_59352.rs:+2:8: +2:11
+        StorageLive(_5);                 // scope 0 at $DIR/issue_59352.rs:+2:8: +2:23
         StorageLive(_6);                 // scope 1 at $SRC_DIR/core/src/char/methods.rs:LL:COL
         StorageLive(_7);                 // scope 1 at $SRC_DIR/core/src/char/methods.rs:LL:COL
         StorageLive(_8);                 // scope 1 at $SRC_DIR/core/src/char/methods.rs:LL:COL
@@ -43,30 +43,30 @@ fn num_to_digit(_1: char) -> u32 {
     }
 
     bb1: {
-        StorageDead(_12);                // scope 0 at $DIR/issue-59352.rs:+2:8: +2:23
-        StorageLive(_3);                 // scope 0 at $DIR/issue-59352.rs:+2:26: +2:41
-        StorageLive(_4);                 // scope 0 at $DIR/issue-59352.rs:+2:26: +2:29
-        _4 = _1;                         // scope 0 at $DIR/issue-59352.rs:+2:26: +2:29
-        _3 = char::methods::<impl char>::to_digit(move _4, const 8_u32) -> bb2; // scope 0 at $DIR/issue-59352.rs:+2:26: +2:41
+        StorageDead(_12);                // scope 0 at $DIR/issue_59352.rs:+2:8: +2:23
+        StorageLive(_3);                 // scope 0 at $DIR/issue_59352.rs:+2:26: +2:41
+        StorageLive(_4);                 // scope 0 at $DIR/issue_59352.rs:+2:26: +2:29
+        _4 = _1;                         // scope 0 at $DIR/issue_59352.rs:+2:26: +2:29
+        _3 = char::methods::<impl char>::to_digit(move _4, const 8_u32) -> bb2; // scope 0 at $DIR/issue_59352.rs:+2:26: +2:41
                                          // mir::Constant
-                                         // + span: $DIR/issue-59352.rs:14:30: 14:38
+                                         // + span: $DIR/issue_59352.rs:14:30: 14:38
                                          // + literal: Const { ty: fn(char, u32) -> Option<u32> {char::methods::<impl char>::to_digit}, val: Value(<ZST>) }
     }
 
     bb2: {
-        StorageDead(_4);                 // scope 0 at $DIR/issue-59352.rs:+2:40: +2:41
+        StorageDead(_4);                 // scope 0 at $DIR/issue_59352.rs:+2:40: +2:41
         _10 = discriminant(_3);          // scope 3 at $SRC_DIR/core/src/option.rs:LL:COL
         switchInt(move _10) -> [0_isize: bb6, 1_isize: bb8, otherwise: bb7]; // scope 3 at $SRC_DIR/core/src/option.rs:LL:COL
     }
 
     bb3: {
-        StorageDead(_12);                // scope 0 at $DIR/issue-59352.rs:+2:8: +2:23
-        _0 = const 0_u32;                // scope 0 at $DIR/issue-59352.rs:+2:60: +2:61
-        goto -> bb4;                     // scope 0 at $DIR/issue-59352.rs:+2:5: +2:63
+        StorageDead(_12);                // scope 0 at $DIR/issue_59352.rs:+2:8: +2:23
+        _0 = const 0_u32;                // scope 0 at $DIR/issue_59352.rs:+2:60: +2:61
+        goto -> bb4;                     // scope 0 at $DIR/issue_59352.rs:+2:5: +2:63
     }
 
     bb4: {
-        return;                          // scope 0 at $DIR/issue-59352.rs:+3:2: +3:2
+        return;                          // scope 0 at $DIR/issue_59352.rs:+3:2: +3:2
     }
 
     bb5: {
@@ -77,9 +77,9 @@ fn num_to_digit(_1: char) -> u32 {
         _12 = move _9;                   // scope 2 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
         StorageDead(_6);                 // scope 1 at $SRC_DIR/core/src/char/methods.rs:LL:COL
         StorageDead(_7);                 // scope 1 at $SRC_DIR/core/src/char/methods.rs:LL:COL
-        StorageDead(_5);                 // scope 0 at $DIR/issue-59352.rs:+2:8: +2:23
-        StorageDead(_2);                 // scope 0 at $DIR/issue-59352.rs:+2:22: +2:23
-        switchInt(move _12) -> [1_isize: bb1, otherwise: bb3]; // scope 0 at $DIR/issue-59352.rs:+2:8: +2:23
+        StorageDead(_5);                 // scope 0 at $DIR/issue_59352.rs:+2:8: +2:23
+        StorageDead(_2);                 // scope 0 at $DIR/issue_59352.rs:+2:22: +2:23
+        switchInt(move _12) -> [1_isize: bb1, otherwise: bb3]; // scope 0 at $DIR/issue_59352.rs:+2:8: +2:23
     }
 
     bb6: {
@@ -99,7 +99,7 @@ fn num_to_digit(_1: char) -> u32 {
 
     bb8: {
         _0 = move ((_3 as Some).0: u32); // scope 3 at $SRC_DIR/core/src/option.rs:LL:COL
-        StorageDead(_3);                 // scope 0 at $DIR/issue-59352.rs:+2:49: +2:50
-        goto -> bb4;                     // scope 0 at $DIR/issue-59352.rs:+2:5: +2:63
+        StorageDead(_3);                 // scope 0 at $DIR/issue_59352.rs:+2:49: +2:50
+        goto -> bb4;                     // scope 0 at $DIR/issue_59352.rs:+2:5: +2:63
     }
 }
diff --git a/src/test/mir-opt/issues/issue-59352.rs b/src/test/mir-opt/issues/issue_59352.rs
similarity index 100%
rename from src/test/mir-opt/issues/issue-59352.rs
rename to src/test/mir-opt/issues/issue_59352.rs
diff --git a/src/test/mir-opt/issues/issue_75439.foo.MatchBranchSimplification.diff b/src/test/mir-opt/issues/issue_75439.foo.MatchBranchSimplification.diff
index 2ee4332ad3827..87066cc62c02a 100644
--- a/src/test/mir-opt/issues/issue_75439.foo.MatchBranchSimplification.diff
+++ b/src/test/mir-opt/issues/issue_75439.foo.MatchBranchSimplification.diff
@@ -2,17 +2,17 @@
 + // MIR for `foo` after MatchBranchSimplification
   
   fn foo(_1: [u8; 16]) -> Option<[u8; 4]> {
-      debug bytes => _1;                   // in scope 0 at $DIR/issue-75439.rs:+0:12: +0:17
-      let mut _0: std::option::Option<[u8; 4]>; // return place in scope 0 at $DIR/issue-75439.rs:+0:32: +0:47
-      let _2: [u32; 4];                    // in scope 0 at $DIR/issue-75439.rs:+2:9: +2:15
-      let mut _3: [u8; 16];                // in scope 0 at $DIR/issue-75439.rs:+2:47: +2:52
-      let mut _5: [u8; 4];                 // in scope 0 at $DIR/issue-75439.rs:+5:14: +5:38
-      let mut _6: u32;                     // in scope 0 at $DIR/issue-75439.rs:+5:33: +5:35
+      debug bytes => _1;                   // in scope 0 at $DIR/issue_75439.rs:+0:12: +0:17
+      let mut _0: std::option::Option<[u8; 4]>; // return place in scope 0 at $DIR/issue_75439.rs:+0:32: +0:47
+      let _2: [u32; 4];                    // in scope 0 at $DIR/issue_75439.rs:+2:9: +2:15
+      let mut _3: [u8; 16];                // in scope 0 at $DIR/issue_75439.rs:+2:47: +2:52
+      let mut _5: [u8; 4];                 // in scope 0 at $DIR/issue_75439.rs:+5:14: +5:38
+      let mut _6: u32;                     // in scope 0 at $DIR/issue_75439.rs:+5:33: +5:35
       scope 1 {
-          debug dwords => _2;              // in scope 1 at $DIR/issue-75439.rs:+2:9: +2:15
+          debug dwords => _2;              // in scope 1 at $DIR/issue_75439.rs:+2:9: +2:15
           scope 3 {
-              debug ip => _4;              // in scope 3 at $DIR/issue-75439.rs:+4:27: +4:29
-              let _4: u32;                 // in scope 3 at $DIR/issue-75439.rs:+4:27: +4:29
+              debug ip => _4;              // in scope 3 at $DIR/issue_75439.rs:+4:27: +4:29
+              let _4: u32;                 // in scope 3 at $DIR/issue_75439.rs:+4:27: +4:29
               scope 4 {
               }
           }
@@ -21,69 +21,69 @@
       }
   
       bb0: {
-          StorageLive(_2);                 // scope 0 at $DIR/issue-75439.rs:+2:9: +2:15
-          StorageLive(_3);                 // scope 2 at $DIR/issue-75439.rs:+2:47: +2:52
-          _3 = _1;                         // scope 2 at $DIR/issue-75439.rs:+2:47: +2:52
-          _2 = transmute::<[u8; 16], [u32; 4]>(move _3) -> bb1; // scope 2 at $DIR/issue-75439.rs:+2:37: +2:53
+          StorageLive(_2);                 // scope 0 at $DIR/issue_75439.rs:+2:9: +2:15
+          StorageLive(_3);                 // scope 2 at $DIR/issue_75439.rs:+2:47: +2:52
+          _3 = _1;                         // scope 2 at $DIR/issue_75439.rs:+2:47: +2:52
+          _2 = transmute::<[u8; 16], [u32; 4]>(move _3) -> bb1; // scope 2 at $DIR/issue_75439.rs:+2:37: +2:53
                                            // mir::Constant
-                                           // + span: $DIR/issue-75439.rs:7:37: 7:46
+                                           // + span: $DIR/issue_75439.rs:7:37: 7:46
                                            // + literal: Const { ty: unsafe extern "rust-intrinsic" fn([u8; 16]) -> [u32; 4] {transmute::<[u8; 16], [u32; 4]>}, val: Value(<ZST>) }
       }
   
       bb1: {
-          StorageDead(_3);                 // scope 2 at $DIR/issue-75439.rs:+2:52: +2:53
-          switchInt(_2[0 of 4]) -> [0_u32: bb2, otherwise: bb8]; // scope 3 at $DIR/issue-75439.rs:+4:12: +4:30
+          StorageDead(_3);                 // scope 2 at $DIR/issue_75439.rs:+2:52: +2:53
+          switchInt(_2[0 of 4]) -> [0_u32: bb2, otherwise: bb8]; // scope 3 at $DIR/issue_75439.rs:+4:12: +4:30
       }
   
       bb2: {
-          switchInt(_2[1 of 4]) -> [0_u32: bb3, otherwise: bb8]; // scope 3 at $DIR/issue-75439.rs:+4:12: +4:30
+          switchInt(_2[1 of 4]) -> [0_u32: bb3, otherwise: bb8]; // scope 3 at $DIR/issue_75439.rs:+4:12: +4:30
       }
   
       bb3: {
-          switchInt(_2[2 of 4]) -> [0_u32: bb5, 4294901760_u32: bb6, otherwise: bb8]; // scope 3 at $DIR/issue-75439.rs:+4:12: +4:30
+          switchInt(_2[2 of 4]) -> [0_u32: bb5, 4294901760_u32: bb6, otherwise: bb8]; // scope 3 at $DIR/issue_75439.rs:+4:12: +4:30
       }
   
       bb4: {
-          StorageLive(_5);                 // scope 3 at $DIR/issue-75439.rs:+5:14: +5:38
-          StorageLive(_6);                 // scope 4 at $DIR/issue-75439.rs:+5:33: +5:35
-          _6 = _4;                         // scope 4 at $DIR/issue-75439.rs:+5:33: +5:35
-          _5 = transmute::<u32, [u8; 4]>(move _6) -> bb7; // scope 4 at $DIR/issue-75439.rs:+5:23: +5:36
+          StorageLive(_5);                 // scope 3 at $DIR/issue_75439.rs:+5:14: +5:38
+          StorageLive(_6);                 // scope 4 at $DIR/issue_75439.rs:+5:33: +5:35
+          _6 = _4;                         // scope 4 at $DIR/issue_75439.rs:+5:33: +5:35
+          _5 = transmute::<u32, [u8; 4]>(move _6) -> bb7; // scope 4 at $DIR/issue_75439.rs:+5:23: +5:36
                                            // mir::Constant
-                                           // + span: $DIR/issue-75439.rs:10:23: 10:32
+                                           // + span: $DIR/issue_75439.rs:10:23: 10:32
                                            // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(u32) -> [u8; 4] {transmute::<u32, [u8; 4]>}, val: Value(<ZST>) }
       }
   
       bb5: {
-          StorageLive(_4);                 // scope 3 at $DIR/issue-75439.rs:+4:27: +4:29
-          _4 = _2[3 of 4];                 // scope 3 at $DIR/issue-75439.rs:+4:27: +4:29
-          goto -> bb4;                     // scope 3 at $DIR/issue-75439.rs:+4:12: +4:30
+          StorageLive(_4);                 // scope 3 at $DIR/issue_75439.rs:+4:27: +4:29
+          _4 = _2[3 of 4];                 // scope 3 at $DIR/issue_75439.rs:+4:27: +4:29
+          goto -> bb4;                     // scope 3 at $DIR/issue_75439.rs:+4:12: +4:30
       }
   
       bb6: {
-          StorageLive(_4);                 // scope 3 at $DIR/issue-75439.rs:+4:27: +4:29
-          _4 = _2[3 of 4];                 // scope 3 at $DIR/issue-75439.rs:+4:27: +4:29
-          goto -> bb4;                     // scope 3 at $DIR/issue-75439.rs:+4:12: +4:30
+          StorageLive(_4);                 // scope 3 at $DIR/issue_75439.rs:+4:27: +4:29
+          _4 = _2[3 of 4];                 // scope 3 at $DIR/issue_75439.rs:+4:27: +4:29
+          goto -> bb4;                     // scope 3 at $DIR/issue_75439.rs:+4:12: +4:30
       }
   
       bb7: {
-          StorageDead(_6);                 // scope 4 at $DIR/issue-75439.rs:+5:35: +5:36
-          Deinit(_0);                      // scope 3 at $DIR/issue-75439.rs:+5:9: +5:39
-          ((_0 as Some).0: [u8; 4]) = move _5; // scope 3 at $DIR/issue-75439.rs:+5:9: +5:39
-          discriminant(_0) = 1;            // scope 3 at $DIR/issue-75439.rs:+5:9: +5:39
-          StorageDead(_5);                 // scope 3 at $DIR/issue-75439.rs:+5:38: +5:39
-          StorageDead(_4);                 // scope 1 at $DIR/issue-75439.rs:+6:5: +6:6
-          goto -> bb9;                     // scope 1 at $DIR/issue-75439.rs:+4:5: +8:6
+          StorageDead(_6);                 // scope 4 at $DIR/issue_75439.rs:+5:35: +5:36
+          Deinit(_0);                      // scope 3 at $DIR/issue_75439.rs:+5:9: +5:39
+          ((_0 as Some).0: [u8; 4]) = move _5; // scope 3 at $DIR/issue_75439.rs:+5:9: +5:39
+          discriminant(_0) = 1;            // scope 3 at $DIR/issue_75439.rs:+5:9: +5:39
+          StorageDead(_5);                 // scope 3 at $DIR/issue_75439.rs:+5:38: +5:39
+          StorageDead(_4);                 // scope 1 at $DIR/issue_75439.rs:+6:5: +6:6
+          goto -> bb9;                     // scope 1 at $DIR/issue_75439.rs:+4:5: +8:6
       }
   
       bb8: {
-          Deinit(_0);                      // scope 1 at $DIR/issue-75439.rs:+7:9: +7:13
-          discriminant(_0) = 0;            // scope 1 at $DIR/issue-75439.rs:+7:9: +7:13
-          goto -> bb9;                     // scope 1 at $DIR/issue-75439.rs:+4:5: +8:6
+          Deinit(_0);                      // scope 1 at $DIR/issue_75439.rs:+7:9: +7:13
+          discriminant(_0) = 0;            // scope 1 at $DIR/issue_75439.rs:+7:9: +7:13
+          goto -> bb9;                     // scope 1 at $DIR/issue_75439.rs:+4:5: +8:6
       }
   
       bb9: {
-          StorageDead(_2);                 // scope 0 at $DIR/issue-75439.rs:+9:1: +9:2
-          return;                          // scope 0 at $DIR/issue-75439.rs:+9:2: +9:2
+          StorageDead(_2);                 // scope 0 at $DIR/issue_75439.rs:+9:1: +9:2
+          return;                          // scope 0 at $DIR/issue_75439.rs:+9:2: +9:2
       }
   }
   
diff --git a/src/test/mir-opt/issues/issue-75439.rs b/src/test/mir-opt/issues/issue_75439.rs
similarity index 100%
rename from src/test/mir-opt/issues/issue-75439.rs
rename to src/test/mir-opt/issues/issue_75439.rs
diff --git a/src/test/mir-opt/match_arm_scopes.complicated_match.SimplifyCfg-initial.after-ElaborateDrops.after.diff b/src/test/mir-opt/match_arm_scopes.complicated_match.SimplifyCfg-initial.after-ElaborateDrops.after.diff
index 25ab0c9f7f4c0..d3db3b182717d 100644
--- a/src/test/mir-opt/match_arm_scopes.complicated_match.SimplifyCfg-initial.after-ElaborateDrops.after.diff
+++ b/src/test/mir-opt/match_arm_scopes.complicated_match.SimplifyCfg-initial.after-ElaborateDrops.after.diff
@@ -2,271 +2,271 @@
 + // MIR for `complicated_match` after ElaborateDrops
   
   fn complicated_match(_1: bool, _2: (bool, bool, String)) -> i32 {
-      debug cond => _1;                    // in scope 0 at $DIR/match-arm-scopes.rs:+0:22: +0:26
-      debug items => _2;                   // in scope 0 at $DIR/match-arm-scopes.rs:+0:34: +0:39
-      let mut _0: i32;                     // return place in scope 0 at $DIR/match-arm-scopes.rs:+0:66: +0:69
-      let mut _3: &bool;                   // in scope 0 at $DIR/match-arm-scopes.rs:+1:11: +1:16
-      let mut _4: &bool;                   // in scope 0 at $DIR/match-arm-scopes.rs:+1:11: +1:16
-      let _5: bool;                        // in scope 0 at $DIR/match-arm-scopes.rs:+2:17: +2:18
-      let _6: &bool;                       // in scope 0 at $DIR/match-arm-scopes.rs:+2:17: +2:18
-      let _7: std::string::String;         // in scope 0 at $DIR/match-arm-scopes.rs:+2:20: +2:21
-      let _8: &std::string::String;        // in scope 0 at $DIR/match-arm-scopes.rs:+2:20: +2:21
-      let mut _9: bool;                    // in scope 0 at $DIR/match-arm-scopes.rs:+2:42: +2:73
-      let mut _10: bool;                   // in scope 0 at $DIR/match-arm-scopes.rs:+2:45: +2:49
-      let mut _11: !;                      // in scope 0 at $DIR/match-arm-scopes.rs:+2:52: +2:60
-      let mut _12: bool;                   // in scope 0 at $DIR/match-arm-scopes.rs:+2:42: +2:73
-      let mut _13: bool;                   // in scope 0 at $DIR/match-arm-scopes.rs:+2:45: +2:49
-      let mut _14: !;                      // in scope 0 at $DIR/match-arm-scopes.rs:+2:52: +2:60
-      let _15: bool;                       // in scope 0 at $DIR/match-arm-scopes.rs:+3:16: +3:17
-      let _16: std::string::String;        // in scope 0 at $DIR/match-arm-scopes.rs:+3:19: +3:20
+      debug cond => _1;                    // in scope 0 at $DIR/match_arm_scopes.rs:+0:22: +0:26
+      debug items => _2;                   // in scope 0 at $DIR/match_arm_scopes.rs:+0:34: +0:39
+      let mut _0: i32;                     // return place in scope 0 at $DIR/match_arm_scopes.rs:+0:66: +0:69
+      let mut _3: &bool;                   // in scope 0 at $DIR/match_arm_scopes.rs:+1:11: +1:16
+      let mut _4: &bool;                   // in scope 0 at $DIR/match_arm_scopes.rs:+1:11: +1:16
+      let _5: bool;                        // in scope 0 at $DIR/match_arm_scopes.rs:+2:17: +2:18
+      let _6: &bool;                       // in scope 0 at $DIR/match_arm_scopes.rs:+2:17: +2:18
+      let _7: std::string::String;         // in scope 0 at $DIR/match_arm_scopes.rs:+2:20: +2:21
+      let _8: &std::string::String;        // in scope 0 at $DIR/match_arm_scopes.rs:+2:20: +2:21
+      let mut _9: bool;                    // in scope 0 at $DIR/match_arm_scopes.rs:+2:42: +2:73
+      let mut _10: bool;                   // in scope 0 at $DIR/match_arm_scopes.rs:+2:45: +2:49
+      let mut _11: !;                      // in scope 0 at $DIR/match_arm_scopes.rs:+2:52: +2:60
+      let mut _12: bool;                   // in scope 0 at $DIR/match_arm_scopes.rs:+2:42: +2:73
+      let mut _13: bool;                   // in scope 0 at $DIR/match_arm_scopes.rs:+2:45: +2:49
+      let mut _14: !;                      // in scope 0 at $DIR/match_arm_scopes.rs:+2:52: +2:60
+      let _15: bool;                       // in scope 0 at $DIR/match_arm_scopes.rs:+3:16: +3:17
+      let _16: std::string::String;        // in scope 0 at $DIR/match_arm_scopes.rs:+3:19: +3:20
       scope 1 {
-          debug a => _5;                   // in scope 1 at $DIR/match-arm-scopes.rs:+2:17: +2:18
-          debug a => _6;                   // in scope 1 at $DIR/match-arm-scopes.rs:+2:17: +2:18
-          debug s => _7;                   // in scope 1 at $DIR/match-arm-scopes.rs:+2:20: +2:21
-          debug s => _8;                   // in scope 1 at $DIR/match-arm-scopes.rs:+2:20: +2:21
+          debug a => _5;                   // in scope 1 at $DIR/match_arm_scopes.rs:+2:17: +2:18
+          debug a => _6;                   // in scope 1 at $DIR/match_arm_scopes.rs:+2:17: +2:18
+          debug s => _7;                   // in scope 1 at $DIR/match_arm_scopes.rs:+2:20: +2:21
+          debug s => _8;                   // in scope 1 at $DIR/match_arm_scopes.rs:+2:20: +2:21
       }
       scope 2 {
-          debug b => _15;                  // in scope 2 at $DIR/match-arm-scopes.rs:+3:16: +3:17
-          debug t => _16;                  // in scope 2 at $DIR/match-arm-scopes.rs:+3:19: +3:20
+          debug b => _15;                  // in scope 2 at $DIR/match_arm_scopes.rs:+3:16: +3:17
+          debug t => _16;                  // in scope 2 at $DIR/match_arm_scopes.rs:+3:19: +3:20
       }
   
       bb0: {
--         FakeRead(ForMatchedPlace(None), _2); // scope 0 at $DIR/match-arm-scopes.rs:+1:11: +1:16
--         switchInt((_2.0: bool)) -> [false: bb1, otherwise: bb2]; // scope 0 at $DIR/match-arm-scopes.rs:+1:5: +1:16
-+         switchInt((_2.0: bool)) -> [false: bb5, otherwise: bb1]; // scope 0 at $DIR/match-arm-scopes.rs:+1:5: +1:16
+-         FakeRead(ForMatchedPlace(None), _2); // scope 0 at $DIR/match_arm_scopes.rs:+1:11: +1:16
+-         switchInt((_2.0: bool)) -> [false: bb1, otherwise: bb2]; // scope 0 at $DIR/match_arm_scopes.rs:+1:5: +1:16
++         switchInt((_2.0: bool)) -> [false: bb5, otherwise: bb1]; // scope 0 at $DIR/match_arm_scopes.rs:+1:5: +1:16
       }
   
       bb1: {
--         falseEdge -> [real: bb8, imaginary: bb3]; // scope 0 at $DIR/match-arm-scopes.rs:+2:9: +2:22
-+         switchInt((_2.1: bool)) -> [false: bb10, otherwise: bb2]; // scope 0 at $DIR/match-arm-scopes.rs:+1:5: +1:16
+-         falseEdge -> [real: bb8, imaginary: bb3]; // scope 0 at $DIR/match_arm_scopes.rs:+2:9: +2:22
++         switchInt((_2.1: bool)) -> [false: bb10, otherwise: bb2]; // scope 0 at $DIR/match_arm_scopes.rs:+1:5: +1:16
       }
   
       bb2: {
--         switchInt((_2.1: bool)) -> [false: bb3, otherwise: bb4]; // scope 0 at $DIR/match-arm-scopes.rs:+1:5: +1:16
-+         switchInt((_2.0: bool)) -> [false: bb3, otherwise: bb17]; // scope 0 at $DIR/match-arm-scopes.rs:+1:5: +1:16
+-         switchInt((_2.1: bool)) -> [false: bb3, otherwise: bb4]; // scope 0 at $DIR/match_arm_scopes.rs:+1:5: +1:16
++         switchInt((_2.0: bool)) -> [false: bb3, otherwise: bb17]; // scope 0 at $DIR/match_arm_scopes.rs:+1:5: +1:16
       }
   
       bb3: {
--         falseEdge -> [real: bb13, imaginary: bb5]; // scope 0 at $DIR/match-arm-scopes.rs:+2:25: +2:38
+-         falseEdge -> [real: bb13, imaginary: bb5]; // scope 0 at $DIR/match_arm_scopes.rs:+2:25: +2:38
 -     }
 - 
 -     bb4: {
--         switchInt((_2.0: bool)) -> [false: bb6, otherwise: bb5]; // scope 0 at $DIR/match-arm-scopes.rs:+1:5: +1:16
+-         switchInt((_2.0: bool)) -> [false: bb6, otherwise: bb5]; // scope 0 at $DIR/match_arm_scopes.rs:+1:5: +1:16
 -     }
 - 
 -     bb5: {
--         falseEdge -> [real: bb20, imaginary: bb6]; // scope 0 at $DIR/match-arm-scopes.rs:+3:9: +3:21
+-         falseEdge -> [real: bb20, imaginary: bb6]; // scope 0 at $DIR/match_arm_scopes.rs:+3:9: +3:21
 -     }
 - 
 -     bb6: {
-          StorageLive(_15);                // scope 0 at $DIR/match-arm-scopes.rs:+3:32: +3:33
-          _15 = (_2.1: bool);              // scope 0 at $DIR/match-arm-scopes.rs:+3:32: +3:33
-          StorageLive(_16);                // scope 0 at $DIR/match-arm-scopes.rs:+3:35: +3:36
-          _16 = move (_2.2: std::string::String); // scope 0 at $DIR/match-arm-scopes.rs:+3:35: +3:36
--         goto -> bb19;                    // scope 0 at $DIR/match-arm-scopes.rs:+1:5: +4:6
-+         goto -> bb16;                    // scope 0 at $DIR/match-arm-scopes.rs:+1:5: +4:6
+          StorageLive(_15);                // scope 0 at $DIR/match_arm_scopes.rs:+3:32: +3:33
+          _15 = (_2.1: bool);              // scope 0 at $DIR/match_arm_scopes.rs:+3:32: +3:33
+          StorageLive(_16);                // scope 0 at $DIR/match_arm_scopes.rs:+3:35: +3:36
+          _16 = move (_2.2: std::string::String); // scope 0 at $DIR/match_arm_scopes.rs:+3:35: +3:36
+-         goto -> bb19;                    // scope 0 at $DIR/match_arm_scopes.rs:+1:5: +4:6
++         goto -> bb16;                    // scope 0 at $DIR/match_arm_scopes.rs:+1:5: +4:6
       }
   
 -     bb7: {
 +     bb4: {
-          _0 = const 1_i32;                // scope 1 at $DIR/match-arm-scopes.rs:+2:77: +2:78
--         drop(_7) -> [return: bb18, unwind: bb25]; // scope 0 at $DIR/match-arm-scopes.rs:+2:77: +2:78
-+         drop(_7) -> [return: bb15, unwind: bb22]; // scope 0 at $DIR/match-arm-scopes.rs:+2:77: +2:78
+          _0 = const 1_i32;                // scope 1 at $DIR/match_arm_scopes.rs:+2:77: +2:78
+-         drop(_7) -> [return: bb18, unwind: bb25]; // scope 0 at $DIR/match_arm_scopes.rs:+2:77: +2:78
++         drop(_7) -> [return: bb15, unwind: bb22]; // scope 0 at $DIR/match_arm_scopes.rs:+2:77: +2:78
       }
   
 -     bb8: {
 +     bb5: {
-          StorageLive(_6);                 // scope 0 at $DIR/match-arm-scopes.rs:+2:17: +2:18
-          _6 = &(_2.1: bool);              // scope 0 at $DIR/match-arm-scopes.rs:+2:17: +2:18
-          StorageLive(_8);                 // scope 0 at $DIR/match-arm-scopes.rs:+2:20: +2:21
-          _8 = &(_2.2: std::string::String); // scope 0 at $DIR/match-arm-scopes.rs:+2:20: +2:21
--         _3 = &shallow (_2.0: bool);      // scope 0 at $DIR/match-arm-scopes.rs:+1:11: +1:16
--         _4 = &shallow (_2.1: bool);      // scope 0 at $DIR/match-arm-scopes.rs:+1:11: +1:16
-          StorageLive(_9);                 // scope 0 at $DIR/match-arm-scopes.rs:+2:42: +2:73
-          StorageLive(_10);                // scope 0 at $DIR/match-arm-scopes.rs:+2:45: +2:49
-          _10 = _1;                        // scope 0 at $DIR/match-arm-scopes.rs:+2:45: +2:49
--         switchInt(move _10) -> [false: bb10, otherwise: bb9]; // scope 0 at $DIR/match-arm-scopes.rs:+2:45: +2:49
-+         switchInt(move _10) -> [false: bb7, otherwise: bb6]; // scope 0 at $DIR/match-arm-scopes.rs:+2:45: +2:49
+          StorageLive(_6);                 // scope 0 at $DIR/match_arm_scopes.rs:+2:17: +2:18
+          _6 = &(_2.1: bool);              // scope 0 at $DIR/match_arm_scopes.rs:+2:17: +2:18
+          StorageLive(_8);                 // scope 0 at $DIR/match_arm_scopes.rs:+2:20: +2:21
+          _8 = &(_2.2: std::string::String); // scope 0 at $DIR/match_arm_scopes.rs:+2:20: +2:21
+-         _3 = &shallow (_2.0: bool);      // scope 0 at $DIR/match_arm_scopes.rs:+1:11: +1:16
+-         _4 = &shallow (_2.1: bool);      // scope 0 at $DIR/match_arm_scopes.rs:+1:11: +1:16
+          StorageLive(_9);                 // scope 0 at $DIR/match_arm_scopes.rs:+2:42: +2:73
+          StorageLive(_10);                // scope 0 at $DIR/match_arm_scopes.rs:+2:45: +2:49
+          _10 = _1;                        // scope 0 at $DIR/match_arm_scopes.rs:+2:45: +2:49
+-         switchInt(move _10) -> [false: bb10, otherwise: bb9]; // scope 0 at $DIR/match_arm_scopes.rs:+2:45: +2:49
++         switchInt(move _10) -> [false: bb7, otherwise: bb6]; // scope 0 at $DIR/match_arm_scopes.rs:+2:45: +2:49
       }
   
 -     bb9: {
 +     bb6: {
-          _0 = const 3_i32;                // scope 0 at $DIR/match-arm-scopes.rs:+2:59: +2:60
-          StorageDead(_10);                // scope 0 at $DIR/match-arm-scopes.rs:+2:72: +2:73
-          StorageDead(_9);                 // scope 0 at $DIR/match-arm-scopes.rs:+2:72: +2:73
+          _0 = const 3_i32;                // scope 0 at $DIR/match_arm_scopes.rs:+2:59: +2:60
+          StorageDead(_10);                // scope 0 at $DIR/match_arm_scopes.rs:+2:72: +2:73
+          StorageDead(_9);                 // scope 0 at $DIR/match_arm_scopes.rs:+2:72: +2:73
 -         goto -> bb23;                    // scope 0 at no-location
 +         goto -> bb20;                    // scope 0 at no-location
       }
   
 -     bb10: {
 +     bb7: {
-          _9 = (*_6);                      // scope 0 at $DIR/match-arm-scopes.rs:+2:70: +2:71
--         switchInt(move _9) -> [false: bb12, otherwise: bb11]; // scope 0 at $DIR/match-arm-scopes.rs:+2:42: +2:73
-+         switchInt(move _9) -> [false: bb9, otherwise: bb8]; // scope 0 at $DIR/match-arm-scopes.rs:+2:42: +2:73
+          _9 = (*_6);                      // scope 0 at $DIR/match_arm_scopes.rs:+2:70: +2:71
+-         switchInt(move _9) -> [false: bb12, otherwise: bb11]; // scope 0 at $DIR/match_arm_scopes.rs:+2:42: +2:73
++         switchInt(move _9) -> [false: bb9, otherwise: bb8]; // scope 0 at $DIR/match_arm_scopes.rs:+2:42: +2:73
       }
   
 -     bb11: {
 +     bb8: {
-          StorageDead(_10);                // scope 0 at $DIR/match-arm-scopes.rs:+2:72: +2:73
-          StorageDead(_9);                 // scope 0 at $DIR/match-arm-scopes.rs:+2:72: +2:73
--         FakeRead(ForMatchGuard, _3);     // scope 0 at $DIR/match-arm-scopes.rs:+2:72: +2:73
--         FakeRead(ForMatchGuard, _4);     // scope 0 at $DIR/match-arm-scopes.rs:+2:72: +2:73
--         FakeRead(ForGuardBinding, _6);   // scope 0 at $DIR/match-arm-scopes.rs:+2:72: +2:73
--         FakeRead(ForGuardBinding, _8);   // scope 0 at $DIR/match-arm-scopes.rs:+2:72: +2:73
-          StorageLive(_5);                 // scope 0 at $DIR/match-arm-scopes.rs:+2:17: +2:18
-          _5 = (_2.1: bool);               // scope 0 at $DIR/match-arm-scopes.rs:+2:17: +2:18
-          StorageLive(_7);                 // scope 0 at $DIR/match-arm-scopes.rs:+2:20: +2:21
-          _7 = move (_2.2: std::string::String); // scope 0 at $DIR/match-arm-scopes.rs:+2:20: +2:21
--         goto -> bb7;                     // scope 0 at $DIR/match-arm-scopes.rs:+1:5: +4:6
-+         goto -> bb4;                     // scope 0 at $DIR/match-arm-scopes.rs:+1:5: +4:6
+          StorageDead(_10);                // scope 0 at $DIR/match_arm_scopes.rs:+2:72: +2:73
+          StorageDead(_9);                 // scope 0 at $DIR/match_arm_scopes.rs:+2:72: +2:73
+-         FakeRead(ForMatchGuard, _3);     // scope 0 at $DIR/match_arm_scopes.rs:+2:72: +2:73
+-         FakeRead(ForMatchGuard, _4);     // scope 0 at $DIR/match_arm_scopes.rs:+2:72: +2:73
+-         FakeRead(ForGuardBinding, _6);   // scope 0 at $DIR/match_arm_scopes.rs:+2:72: +2:73
+-         FakeRead(ForGuardBinding, _8);   // scope 0 at $DIR/match_arm_scopes.rs:+2:72: +2:73
+          StorageLive(_5);                 // scope 0 at $DIR/match_arm_scopes.rs:+2:17: +2:18
+          _5 = (_2.1: bool);               // scope 0 at $DIR/match_arm_scopes.rs:+2:17: +2:18
+          StorageLive(_7);                 // scope 0 at $DIR/match_arm_scopes.rs:+2:20: +2:21
+          _7 = move (_2.2: std::string::String); // scope 0 at $DIR/match_arm_scopes.rs:+2:20: +2:21
+-         goto -> bb7;                     // scope 0 at $DIR/match_arm_scopes.rs:+1:5: +4:6
++         goto -> bb4;                     // scope 0 at $DIR/match_arm_scopes.rs:+1:5: +4:6
       }
   
 -     bb12: {
 +     bb9: {
-          StorageDead(_10);                // scope 0 at $DIR/match-arm-scopes.rs:+2:72: +2:73
-          StorageDead(_9);                 // scope 0 at $DIR/match-arm-scopes.rs:+2:72: +2:73
-          StorageDead(_8);                 // scope 0 at $DIR/match-arm-scopes.rs:+2:77: +2:78
-          StorageDead(_6);                 // scope 0 at $DIR/match-arm-scopes.rs:+2:77: +2:78
--         falseEdge -> [real: bb2, imaginary: bb3]; // scope 0 at $DIR/match-arm-scopes.rs:+2:42: +2:73
-+         goto -> bb1;                     // scope 0 at $DIR/match-arm-scopes.rs:+2:42: +2:73
+          StorageDead(_10);                // scope 0 at $DIR/match_arm_scopes.rs:+2:72: +2:73
+          StorageDead(_9);                 // scope 0 at $DIR/match_arm_scopes.rs:+2:72: +2:73
+          StorageDead(_8);                 // scope 0 at $DIR/match_arm_scopes.rs:+2:77: +2:78
+          StorageDead(_6);                 // scope 0 at $DIR/match_arm_scopes.rs:+2:77: +2:78
+-         falseEdge -> [real: bb2, imaginary: bb3]; // scope 0 at $DIR/match_arm_scopes.rs:+2:42: +2:73
++         goto -> bb1;                     // scope 0 at $DIR/match_arm_scopes.rs:+2:42: +2:73
       }
   
 -     bb13: {
 +     bb10: {
-          StorageLive(_6);                 // scope 0 at $DIR/match-arm-scopes.rs:+2:26: +2:27
-          _6 = &(_2.0: bool);              // scope 0 at $DIR/match-arm-scopes.rs:+2:26: +2:27
-          StorageLive(_8);                 // scope 0 at $DIR/match-arm-scopes.rs:+2:36: +2:37
-          _8 = &(_2.2: std::string::String); // scope 0 at $DIR/match-arm-scopes.rs:+2:36: +2:37
--         _3 = &shallow (_2.0: bool);      // scope 0 at $DIR/match-arm-scopes.rs:+1:11: +1:16
--         _4 = &shallow (_2.1: bool);      // scope 0 at $DIR/match-arm-scopes.rs:+1:11: +1:16
-          StorageLive(_12);                // scope 0 at $DIR/match-arm-scopes.rs:+2:42: +2:73
-          StorageLive(_13);                // scope 0 at $DIR/match-arm-scopes.rs:+2:45: +2:49
-          _13 = _1;                        // scope 0 at $DIR/match-arm-scopes.rs:+2:45: +2:49
--         switchInt(move _13) -> [false: bb15, otherwise: bb14]; // scope 0 at $DIR/match-arm-scopes.rs:+2:45: +2:49
-+         switchInt(move _13) -> [false: bb12, otherwise: bb11]; // scope 0 at $DIR/match-arm-scopes.rs:+2:45: +2:49
+          StorageLive(_6);                 // scope 0 at $DIR/match_arm_scopes.rs:+2:26: +2:27
+          _6 = &(_2.0: bool);              // scope 0 at $DIR/match_arm_scopes.rs:+2:26: +2:27
+          StorageLive(_8);                 // scope 0 at $DIR/match_arm_scopes.rs:+2:36: +2:37
+          _8 = &(_2.2: std::string::String); // scope 0 at $DIR/match_arm_scopes.rs:+2:36: +2:37
+-         _3 = &shallow (_2.0: bool);      // scope 0 at $DIR/match_arm_scopes.rs:+1:11: +1:16
+-         _4 = &shallow (_2.1: bool);      // scope 0 at $DIR/match_arm_scopes.rs:+1:11: +1:16
+          StorageLive(_12);                // scope 0 at $DIR/match_arm_scopes.rs:+2:42: +2:73
+          StorageLive(_13);                // scope 0 at $DIR/match_arm_scopes.rs:+2:45: +2:49
+          _13 = _1;                        // scope 0 at $DIR/match_arm_scopes.rs:+2:45: +2:49
+-         switchInt(move _13) -> [false: bb15, otherwise: bb14]; // scope 0 at $DIR/match_arm_scopes.rs:+2:45: +2:49
++         switchInt(move _13) -> [false: bb12, otherwise: bb11]; // scope 0 at $DIR/match_arm_scopes.rs:+2:45: +2:49
       }
   
 -     bb14: {
 +     bb11: {
-          _0 = const 3_i32;                // scope 0 at $DIR/match-arm-scopes.rs:+2:59: +2:60
-          StorageDead(_13);                // scope 0 at $DIR/match-arm-scopes.rs:+2:72: +2:73
-          StorageDead(_12);                // scope 0 at $DIR/match-arm-scopes.rs:+2:72: +2:73
+          _0 = const 3_i32;                // scope 0 at $DIR/match_arm_scopes.rs:+2:59: +2:60
+          StorageDead(_13);                // scope 0 at $DIR/match_arm_scopes.rs:+2:72: +2:73
+          StorageDead(_12);                // scope 0 at $DIR/match_arm_scopes.rs:+2:72: +2:73
 -         goto -> bb23;                    // scope 0 at no-location
 +         goto -> bb20;                    // scope 0 at no-location
       }
   
 -     bb15: {
 +     bb12: {
-          _12 = (*_6);                     // scope 0 at $DIR/match-arm-scopes.rs:+2:70: +2:71
--         switchInt(move _12) -> [false: bb17, otherwise: bb16]; // scope 0 at $DIR/match-arm-scopes.rs:+2:42: +2:73
-+         switchInt(move _12) -> [false: bb14, otherwise: bb13]; // scope 0 at $DIR/match-arm-scopes.rs:+2:42: +2:73
+          _12 = (*_6);                     // scope 0 at $DIR/match_arm_scopes.rs:+2:70: +2:71
+-         switchInt(move _12) -> [false: bb17, otherwise: bb16]; // scope 0 at $DIR/match_arm_scopes.rs:+2:42: +2:73
++         switchInt(move _12) -> [false: bb14, otherwise: bb13]; // scope 0 at $DIR/match_arm_scopes.rs:+2:42: +2:73
       }
   
 -     bb16: {
 +     bb13: {
-          StorageDead(_13);                // scope 0 at $DIR/match-arm-scopes.rs:+2:72: +2:73
-          StorageDead(_12);                // scope 0 at $DIR/match-arm-scopes.rs:+2:72: +2:73
--         FakeRead(ForMatchGuard, _3);     // scope 0 at $DIR/match-arm-scopes.rs:+2:72: +2:73
--         FakeRead(ForMatchGuard, _4);     // scope 0 at $DIR/match-arm-scopes.rs:+2:72: +2:73
--         FakeRead(ForGuardBinding, _6);   // scope 0 at $DIR/match-arm-scopes.rs:+2:72: +2:73
--         FakeRead(ForGuardBinding, _8);   // scope 0 at $DIR/match-arm-scopes.rs:+2:72: +2:73
-          StorageLive(_5);                 // scope 0 at $DIR/match-arm-scopes.rs:+2:26: +2:27
-          _5 = (_2.0: bool);               // scope 0 at $DIR/match-arm-scopes.rs:+2:26: +2:27
-          StorageLive(_7);                 // scope 0 at $DIR/match-arm-scopes.rs:+2:36: +2:37
-          _7 = move (_2.2: std::string::String); // scope 0 at $DIR/match-arm-scopes.rs:+2:36: +2:37
--         goto -> bb7;                     // scope 0 at $DIR/match-arm-scopes.rs:+1:5: +4:6
-+         goto -> bb4;                     // scope 0 at $DIR/match-arm-scopes.rs:+1:5: +4:6
+          StorageDead(_13);                // scope 0 at $DIR/match_arm_scopes.rs:+2:72: +2:73
+          StorageDead(_12);                // scope 0 at $DIR/match_arm_scopes.rs:+2:72: +2:73
+-         FakeRead(ForMatchGuard, _3);     // scope 0 at $DIR/match_arm_scopes.rs:+2:72: +2:73
+-         FakeRead(ForMatchGuard, _4);     // scope 0 at $DIR/match_arm_scopes.rs:+2:72: +2:73
+-         FakeRead(ForGuardBinding, _6);   // scope 0 at $DIR/match_arm_scopes.rs:+2:72: +2:73
+-         FakeRead(ForGuardBinding, _8);   // scope 0 at $DIR/match_arm_scopes.rs:+2:72: +2:73
+          StorageLive(_5);                 // scope 0 at $DIR/match_arm_scopes.rs:+2:26: +2:27
+          _5 = (_2.0: bool);               // scope 0 at $DIR/match_arm_scopes.rs:+2:26: +2:27
+          StorageLive(_7);                 // scope 0 at $DIR/match_arm_scopes.rs:+2:36: +2:37
+          _7 = move (_2.2: std::string::String); // scope 0 at $DIR/match_arm_scopes.rs:+2:36: +2:37
+-         goto -> bb7;                     // scope 0 at $DIR/match_arm_scopes.rs:+1:5: +4:6
++         goto -> bb4;                     // scope 0 at $DIR/match_arm_scopes.rs:+1:5: +4:6
       }
   
 -     bb17: {
 +     bb14: {
-          StorageDead(_13);                // scope 0 at $DIR/match-arm-scopes.rs:+2:72: +2:73
-          StorageDead(_12);                // scope 0 at $DIR/match-arm-scopes.rs:+2:72: +2:73
-          StorageDead(_8);                 // scope 0 at $DIR/match-arm-scopes.rs:+2:77: +2:78
-          StorageDead(_6);                 // scope 0 at $DIR/match-arm-scopes.rs:+2:77: +2:78
--         falseEdge -> [real: bb4, imaginary: bb5]; // scope 0 at $DIR/match-arm-scopes.rs:+2:42: +2:73
-+         goto -> bb2;                     // scope 0 at $DIR/match-arm-scopes.rs:+2:42: +2:73
+          StorageDead(_13);                // scope 0 at $DIR/match_arm_scopes.rs:+2:72: +2:73
+          StorageDead(_12);                // scope 0 at $DIR/match_arm_scopes.rs:+2:72: +2:73
+          StorageDead(_8);                 // scope 0 at $DIR/match_arm_scopes.rs:+2:77: +2:78
+          StorageDead(_6);                 // scope 0 at $DIR/match_arm_scopes.rs:+2:77: +2:78
+-         falseEdge -> [real: bb4, imaginary: bb5]; // scope 0 at $DIR/match_arm_scopes.rs:+2:42: +2:73
++         goto -> bb2;                     // scope 0 at $DIR/match_arm_scopes.rs:+2:42: +2:73
       }
   
 -     bb18: {
 +     bb15: {
-          StorageDead(_7);                 // scope 0 at $DIR/match-arm-scopes.rs:+2:77: +2:78
-          StorageDead(_5);                 // scope 0 at $DIR/match-arm-scopes.rs:+2:77: +2:78
-          StorageDead(_8);                 // scope 0 at $DIR/match-arm-scopes.rs:+2:77: +2:78
-          StorageDead(_6);                 // scope 0 at $DIR/match-arm-scopes.rs:+2:77: +2:78
--         goto -> bb22;                    // scope 0 at $DIR/match-arm-scopes.rs:+2:77: +2:78
-+         goto -> bb19;                    // scope 0 at $DIR/match-arm-scopes.rs:+2:77: +2:78
+          StorageDead(_7);                 // scope 0 at $DIR/match_arm_scopes.rs:+2:77: +2:78
+          StorageDead(_5);                 // scope 0 at $DIR/match_arm_scopes.rs:+2:77: +2:78
+          StorageDead(_8);                 // scope 0 at $DIR/match_arm_scopes.rs:+2:77: +2:78
+          StorageDead(_6);                 // scope 0 at $DIR/match_arm_scopes.rs:+2:77: +2:78
+-         goto -> bb22;                    // scope 0 at $DIR/match_arm_scopes.rs:+2:77: +2:78
++         goto -> bb19;                    // scope 0 at $DIR/match_arm_scopes.rs:+2:77: +2:78
       }
   
 -     bb19: {
 +     bb16: {
-          _0 = const 2_i32;                // scope 2 at $DIR/match-arm-scopes.rs:+3:41: +3:42
--         drop(_16) -> [return: bb21, unwind: bb25]; // scope 0 at $DIR/match-arm-scopes.rs:+3:41: +3:42
-+         drop(_16) -> [return: bb18, unwind: bb22]; // scope 0 at $DIR/match-arm-scopes.rs:+3:41: +3:42
+          _0 = const 2_i32;                // scope 2 at $DIR/match_arm_scopes.rs:+3:41: +3:42
+-         drop(_16) -> [return: bb21, unwind: bb25]; // scope 0 at $DIR/match_arm_scopes.rs:+3:41: +3:42
++         drop(_16) -> [return: bb18, unwind: bb22]; // scope 0 at $DIR/match_arm_scopes.rs:+3:41: +3:42
       }
   
 -     bb20: {
 +     bb17: {
-          StorageLive(_15);                // scope 0 at $DIR/match-arm-scopes.rs:+3:16: +3:17
-          _15 = (_2.1: bool);              // scope 0 at $DIR/match-arm-scopes.rs:+3:16: +3:17
-          StorageLive(_16);                // scope 0 at $DIR/match-arm-scopes.rs:+3:19: +3:20
-          _16 = move (_2.2: std::string::String); // scope 0 at $DIR/match-arm-scopes.rs:+3:19: +3:20
--         goto -> bb19;                    // scope 0 at $DIR/match-arm-scopes.rs:+1:5: +4:6
-+         goto -> bb16;                    // scope 0 at $DIR/match-arm-scopes.rs:+1:5: +4:6
+          StorageLive(_15);                // scope 0 at $DIR/match_arm_scopes.rs:+3:16: +3:17
+          _15 = (_2.1: bool);              // scope 0 at $DIR/match_arm_scopes.rs:+3:16: +3:17
+          StorageLive(_16);                // scope 0 at $DIR/match_arm_scopes.rs:+3:19: +3:20
+          _16 = move (_2.2: std::string::String); // scope 0 at $DIR/match_arm_scopes.rs:+3:19: +3:20
+-         goto -> bb19;                    // scope 0 at $DIR/match_arm_scopes.rs:+1:5: +4:6
++         goto -> bb16;                    // scope 0 at $DIR/match_arm_scopes.rs:+1:5: +4:6
       }
   
 -     bb21: {
 +     bb18: {
-          StorageDead(_16);                // scope 0 at $DIR/match-arm-scopes.rs:+3:41: +3:42
-          StorageDead(_15);                // scope 0 at $DIR/match-arm-scopes.rs:+3:41: +3:42
--         goto -> bb22;                    // scope 0 at $DIR/match-arm-scopes.rs:+3:41: +3:42
-+         goto -> bb19;                    // scope 0 at $DIR/match-arm-scopes.rs:+3:41: +3:42
+          StorageDead(_16);                // scope 0 at $DIR/match_arm_scopes.rs:+3:41: +3:42
+          StorageDead(_15);                // scope 0 at $DIR/match_arm_scopes.rs:+3:41: +3:42
+-         goto -> bb22;                    // scope 0 at $DIR/match_arm_scopes.rs:+3:41: +3:42
++         goto -> bb19;                    // scope 0 at $DIR/match_arm_scopes.rs:+3:41: +3:42
       }
   
 -     bb22: {
--         drop(_2) -> [return: bb24, unwind: bb26]; // scope 0 at $DIR/match-arm-scopes.rs:+5:1: +5:2
+-         drop(_2) -> [return: bb24, unwind: bb26]; // scope 0 at $DIR/match_arm_scopes.rs:+5:1: +5:2
 +     bb19: {
-+         goto -> bb26;                    // scope 0 at $DIR/match-arm-scopes.rs:+5:1: +5:2
++         goto -> bb26;                    // scope 0 at $DIR/match_arm_scopes.rs:+5:1: +5:2
       }
   
 -     bb23: {
 +     bb20: {
-          StorageDead(_8);                 // scope 0 at $DIR/match-arm-scopes.rs:+2:77: +2:78
-          StorageDead(_6);                 // scope 0 at $DIR/match-arm-scopes.rs:+2:77: +2:78
--         drop(_2) -> [return: bb24, unwind: bb26]; // scope 0 at $DIR/match-arm-scopes.rs:+5:1: +5:2
-+         drop(_2) -> [return: bb21, unwind: bb23]; // scope 0 at $DIR/match-arm-scopes.rs:+5:1: +5:2
+          StorageDead(_8);                 // scope 0 at $DIR/match_arm_scopes.rs:+2:77: +2:78
+          StorageDead(_6);                 // scope 0 at $DIR/match_arm_scopes.rs:+2:77: +2:78
+-         drop(_2) -> [return: bb24, unwind: bb26]; // scope 0 at $DIR/match_arm_scopes.rs:+5:1: +5:2
++         drop(_2) -> [return: bb21, unwind: bb23]; // scope 0 at $DIR/match_arm_scopes.rs:+5:1: +5:2
       }
   
 -     bb24: {
 +     bb21: {
-          return;                          // scope 0 at $DIR/match-arm-scopes.rs:+5:2: +5:2
+          return;                          // scope 0 at $DIR/match_arm_scopes.rs:+5:2: +5:2
       }
   
 -     bb25 (cleanup): {
--         drop(_2) -> bb26;                // scope 0 at $DIR/match-arm-scopes.rs:+5:1: +5:2
+-         drop(_2) -> bb26;                // scope 0 at $DIR/match_arm_scopes.rs:+5:1: +5:2
 +     bb22 (cleanup): {
-+         goto -> bb27;                    // scope 0 at $DIR/match-arm-scopes.rs:+5:1: +5:2
++         goto -> bb27;                    // scope 0 at $DIR/match_arm_scopes.rs:+5:1: +5:2
       }
   
 -     bb26 (cleanup): {
 +     bb23 (cleanup): {
-          resume;                          // scope 0 at $DIR/match-arm-scopes.rs:+0:1: +5:2
+          resume;                          // scope 0 at $DIR/match_arm_scopes.rs:+0:1: +5:2
 +     }
 + 
 +     bb24: {
-+         goto -> bb21;                    // scope 0 at $DIR/match-arm-scopes.rs:+5:1: +5:2
++         goto -> bb21;                    // scope 0 at $DIR/match_arm_scopes.rs:+5:1: +5:2
 +     }
 + 
 +     bb25 (cleanup): {
-+         goto -> bb23;                    // scope 0 at $DIR/match-arm-scopes.rs:+5:1: +5:2
++         goto -> bb23;                    // scope 0 at $DIR/match_arm_scopes.rs:+5:1: +5:2
 +     }
 + 
 +     bb26: {
-+         goto -> bb24;                    // scope 0 at $DIR/match-arm-scopes.rs:+5:1: +5:2
++         goto -> bb24;                    // scope 0 at $DIR/match_arm_scopes.rs:+5:1: +5:2
 +     }
 + 
 +     bb27 (cleanup): {
-+         goto -> bb23;                    // scope 0 at $DIR/match-arm-scopes.rs:+5:1: +5:2
++         goto -> bb23;                    // scope 0 at $DIR/match_arm_scopes.rs:+5:1: +5:2
       }
   }
   
diff --git a/src/test/mir-opt/match-arm-scopes.rs b/src/test/mir-opt/match_arm_scopes.rs
similarity index 100%
rename from src/test/mir-opt/match-arm-scopes.rs
rename to src/test/mir-opt/match_arm_scopes.rs
diff --git a/src/test/mir-opt/nll/named-lifetimes-basic.rs b/src/test/mir-opt/nll/named_lifetimes_basic.rs
similarity index 100%
rename from src/test/mir-opt/nll/named-lifetimes-basic.rs
rename to src/test/mir-opt/nll/named_lifetimes_basic.rs
diff --git a/src/test/mir-opt/nll/named_lifetimes_basic.use_x.nll.0.mir b/src/test/mir-opt/nll/named_lifetimes_basic.use_x.nll.0.mir
index 0ab9d712d9f69..6cd6d8b77959e 100644
--- a/src/test/mir-opt/nll/named_lifetimes_basic.use_x.nll.0.mir
+++ b/src/test/mir-opt/nll/named_lifetimes_basic.use_x.nll.0.mir
@@ -24,24 +24,24 @@
 | '_#2r live at {bb0[0..=1]}
 | '_#3r live at {bb0[0..=1]}
 | '_#4r live at {bb0[0..=1]}
-| '_#1r: '_#5r due to BoringNoLocation at All($DIR/named-lifetimes-basic.rs:12:26: 12:27) ($DIR/named-lifetimes-basic.rs:12:26: 12:27 (#0)
-| '_#1r: '_#7r due to BoringNoLocation at All($DIR/named-lifetimes-basic.rs:12:54: 12:55) ($DIR/named-lifetimes-basic.rs:12:54: 12:55 (#0)
-| '_#2r: '_#6r due to BoringNoLocation at All($DIR/named-lifetimes-basic.rs:12:42: 12:43) ($DIR/named-lifetimes-basic.rs:12:42: 12:43 (#0)
-| '_#3r: '_#8r due to BoringNoLocation at All($DIR/named-lifetimes-basic.rs:12:66: 12:67) ($DIR/named-lifetimes-basic.rs:12:66: 12:67 (#0)
-| '_#5r: '_#1r due to BoringNoLocation at All($DIR/named-lifetimes-basic.rs:12:26: 12:27) ($DIR/named-lifetimes-basic.rs:12:26: 12:27 (#0)
-| '_#6r: '_#2r due to BoringNoLocation at All($DIR/named-lifetimes-basic.rs:12:42: 12:43) ($DIR/named-lifetimes-basic.rs:12:42: 12:43 (#0)
-| '_#7r: '_#1r due to BoringNoLocation at All($DIR/named-lifetimes-basic.rs:12:54: 12:55) ($DIR/named-lifetimes-basic.rs:12:54: 12:55 (#0)
-| '_#8r: '_#3r due to BoringNoLocation at All($DIR/named-lifetimes-basic.rs:12:66: 12:67) ($DIR/named-lifetimes-basic.rs:12:66: 12:67 (#0)
+| '_#1r: '_#5r due to BoringNoLocation at All($DIR/named_lifetimes_basic.rs:12:26: 12:27) ($DIR/named_lifetimes_basic.rs:12:26: 12:27 (#0)
+| '_#1r: '_#7r due to BoringNoLocation at All($DIR/named_lifetimes_basic.rs:12:54: 12:55) ($DIR/named_lifetimes_basic.rs:12:54: 12:55 (#0)
+| '_#2r: '_#6r due to BoringNoLocation at All($DIR/named_lifetimes_basic.rs:12:42: 12:43) ($DIR/named_lifetimes_basic.rs:12:42: 12:43 (#0)
+| '_#3r: '_#8r due to BoringNoLocation at All($DIR/named_lifetimes_basic.rs:12:66: 12:67) ($DIR/named_lifetimes_basic.rs:12:66: 12:67 (#0)
+| '_#5r: '_#1r due to BoringNoLocation at All($DIR/named_lifetimes_basic.rs:12:26: 12:27) ($DIR/named_lifetimes_basic.rs:12:26: 12:27 (#0)
+| '_#6r: '_#2r due to BoringNoLocation at All($DIR/named_lifetimes_basic.rs:12:42: 12:43) ($DIR/named_lifetimes_basic.rs:12:42: 12:43 (#0)
+| '_#7r: '_#1r due to BoringNoLocation at All($DIR/named_lifetimes_basic.rs:12:54: 12:55) ($DIR/named_lifetimes_basic.rs:12:54: 12:55 (#0)
+| '_#8r: '_#3r due to BoringNoLocation at All($DIR/named_lifetimes_basic.rs:12:66: 12:67) ($DIR/named_lifetimes_basic.rs:12:66: 12:67 (#0)
 |
 fn use_x(_1: &'_#5r mut i32, _2: &'_#6r u32, _3: &'_#7r u32, _4: &'_#8r u32) -> bool {
-    debug w => _1;                       // in scope 0 at $DIR/named-lifetimes-basic.rs:+0:26: +0:27
-    debug x => _2;                       // in scope 0 at $DIR/named-lifetimes-basic.rs:+0:42: +0:43
-    debug y => _3;                       // in scope 0 at $DIR/named-lifetimes-basic.rs:+0:54: +0:55
-    debug z => _4;                       // in scope 0 at $DIR/named-lifetimes-basic.rs:+0:66: +0:67
-    let mut _0: bool;                    // return place in scope 0 at $DIR/named-lifetimes-basic.rs:+0:81: +0:85
+    debug w => _1;                       // in scope 0 at $DIR/named_lifetimes_basic.rs:+0:26: +0:27
+    debug x => _2;                       // in scope 0 at $DIR/named_lifetimes_basic.rs:+0:42: +0:43
+    debug y => _3;                       // in scope 0 at $DIR/named_lifetimes_basic.rs:+0:54: +0:55
+    debug z => _4;                       // in scope 0 at $DIR/named_lifetimes_basic.rs:+0:66: +0:67
+    let mut _0: bool;                    // return place in scope 0 at $DIR/named_lifetimes_basic.rs:+0:81: +0:85
 
     bb0: {
-        _0 = const ConstValue(Scalar(0x01): bool); // bb0[0]: scope 0 at $DIR/named-lifetimes-basic.rs:+0:88: +0:92
-        return;                          // bb0[1]: scope 0 at $DIR/named-lifetimes-basic.rs:+0:94: +0:94
+        _0 = const ConstValue(Scalar(0x01): bool); // bb0[0]: scope 0 at $DIR/named_lifetimes_basic.rs:+0:88: +0:92
+        return;                          // bb0[1]: scope 0 at $DIR/named_lifetimes_basic.rs:+0:94: +0:94
     }
 }
diff --git a/src/test/mir-opt/nll/region_subtyping_basic.main.nll.0.32bit.mir b/src/test/mir-opt/nll/region_subtyping_basic.main.nll.0.32bit.mir
index 36705d18e0161..3e3fda6141aec 100644
--- a/src/test/mir-opt/nll/region_subtyping_basic.main.nll.0.32bit.mir
+++ b/src/test/mir-opt/nll/region_subtyping_basic.main.nll.0.32bit.mir
@@ -17,95 +17,95 @@
 | '_#2r live at {bb1[0]}
 | '_#3r live at {bb1[1..=3]}
 | '_#4r live at {bb1[4..=7], bb2[0..=2]}
-| '_#2r: '_#3r due to Assignment at Single(bb1[0]) ($DIR/region-subtyping-basic.rs:18:13: 18:18 (#0)
-| '_#3r: '_#4r due to Assignment at Single(bb1[3]) ($DIR/region-subtyping-basic.rs:19:13: 19:14 (#0)
+| '_#2r: '_#3r due to Assignment at Single(bb1[0]) ($DIR/region_subtyping_basic.rs:18:13: 18:18 (#0)
+| '_#3r: '_#4r due to Assignment at Single(bb1[3]) ($DIR/region_subtyping_basic.rs:19:13: 19:14 (#0)
 |
 fn main() -> () {
-    let mut _0: ();                      // return place in scope 0 at $DIR/region-subtyping-basic.rs:+0:11: +0:11
-    let mut _1: [usize; Const { ty: usize, kind: Value(Leaf(0x00000003)) }]; // in scope 0 at $DIR/region-subtyping-basic.rs:+1:9: +1:14
-    let _3: usize;                       // in scope 0 at $DIR/region-subtyping-basic.rs:+2:16: +2:17
-    let mut _4: usize;                   // in scope 0 at $DIR/region-subtyping-basic.rs:+2:14: +2:18
-    let mut _5: bool;                    // in scope 0 at $DIR/region-subtyping-basic.rs:+2:14: +2:18
-    let mut _7: bool;                    // in scope 0 at $DIR/region-subtyping-basic.rs:+4:8: +4:12
-    let _8: bool;                        // in scope 0 at $DIR/region-subtyping-basic.rs:+5:9: +5:18
-    let mut _9: usize;                   // in scope 0 at $DIR/region-subtyping-basic.rs:+5:15: +5:17
-    let _10: bool;                       // in scope 0 at $DIR/region-subtyping-basic.rs:+7:9: +7:18
+    let mut _0: ();                      // return place in scope 0 at $DIR/region_subtyping_basic.rs:+0:11: +0:11
+    let mut _1: [usize; Const { ty: usize, kind: Value(Leaf(0x00000003)) }]; // in scope 0 at $DIR/region_subtyping_basic.rs:+1:9: +1:14
+    let _3: usize;                       // in scope 0 at $DIR/region_subtyping_basic.rs:+2:16: +2:17
+    let mut _4: usize;                   // in scope 0 at $DIR/region_subtyping_basic.rs:+2:14: +2:18
+    let mut _5: bool;                    // in scope 0 at $DIR/region_subtyping_basic.rs:+2:14: +2:18
+    let mut _7: bool;                    // in scope 0 at $DIR/region_subtyping_basic.rs:+4:8: +4:12
+    let _8: bool;                        // in scope 0 at $DIR/region_subtyping_basic.rs:+5:9: +5:18
+    let mut _9: usize;                   // in scope 0 at $DIR/region_subtyping_basic.rs:+5:15: +5:17
+    let _10: bool;                       // in scope 0 at $DIR/region_subtyping_basic.rs:+7:9: +7:18
     scope 1 {
-        debug v => _1;                   // in scope 1 at $DIR/region-subtyping-basic.rs:+1:9: +1:14
-        let _2: &'_#3r usize;            // in scope 1 at $DIR/region-subtyping-basic.rs:+2:9: +2:10
+        debug v => _1;                   // in scope 1 at $DIR/region_subtyping_basic.rs:+1:9: +1:14
+        let _2: &'_#3r usize;            // in scope 1 at $DIR/region_subtyping_basic.rs:+2:9: +2:10
         scope 2 {
-            debug p => _2;               // in scope 2 at $DIR/region-subtyping-basic.rs:+2:9: +2:10
-            let _6: &'_#4r usize;        // in scope 2 at $DIR/region-subtyping-basic.rs:+3:9: +3:10
+            debug p => _2;               // in scope 2 at $DIR/region_subtyping_basic.rs:+2:9: +2:10
+            let _6: &'_#4r usize;        // in scope 2 at $DIR/region_subtyping_basic.rs:+3:9: +3:10
             scope 3 {
-                debug q => _6;           // in scope 3 at $DIR/region-subtyping-basic.rs:+3:9: +3:10
+                debug q => _6;           // in scope 3 at $DIR/region_subtyping_basic.rs:+3:9: +3:10
             }
         }
     }
 
     bb0: {
-        StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/region-subtyping-basic.rs:+1:9: +1:14
-        _1 = [const ConstValue(Scalar(0x00000001): usize), const ConstValue(Scalar(0x00000002): usize), const ConstValue(Scalar(0x00000003): usize)]; // bb0[1]: scope 0 at $DIR/region-subtyping-basic.rs:+1:17: +1:26
-        FakeRead(ForLet(None), _1);      // bb0[2]: scope 0 at $DIR/region-subtyping-basic.rs:+1:9: +1:14
-        StorageLive(_2);                 // bb0[3]: scope 1 at $DIR/region-subtyping-basic.rs:+2:9: +2:10
-        StorageLive(_3);                 // bb0[4]: scope 1 at $DIR/region-subtyping-basic.rs:+2:16: +2:17
-        _3 = const ConstValue(Scalar(0x00000000): usize); // bb0[5]: scope 1 at $DIR/region-subtyping-basic.rs:+2:16: +2:17
-        _4 = Len(_1);                    // bb0[6]: scope 1 at $DIR/region-subtyping-basic.rs:+2:14: +2:18
-        _5 = Lt(_3, _4);                 // bb0[7]: scope 1 at $DIR/region-subtyping-basic.rs:+2:14: +2:18
-        assert(move _5, "index out of bounds: the length is {} but the index is {}", move _4, _3) -> [success: bb1, unwind: bb7]; // bb0[8]: scope 1 at $DIR/region-subtyping-basic.rs:+2:14: +2:18
+        StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/region_subtyping_basic.rs:+1:9: +1:14
+        _1 = [const ConstValue(Scalar(0x00000001): usize), const ConstValue(Scalar(0x00000002): usize), const ConstValue(Scalar(0x00000003): usize)]; // bb0[1]: scope 0 at $DIR/region_subtyping_basic.rs:+1:17: +1:26
+        FakeRead(ForLet(None), _1);      // bb0[2]: scope 0 at $DIR/region_subtyping_basic.rs:+1:9: +1:14
+        StorageLive(_2);                 // bb0[3]: scope 1 at $DIR/region_subtyping_basic.rs:+2:9: +2:10
+        StorageLive(_3);                 // bb0[4]: scope 1 at $DIR/region_subtyping_basic.rs:+2:16: +2:17
+        _3 = const ConstValue(Scalar(0x00000000): usize); // bb0[5]: scope 1 at $DIR/region_subtyping_basic.rs:+2:16: +2:17
+        _4 = Len(_1);                    // bb0[6]: scope 1 at $DIR/region_subtyping_basic.rs:+2:14: +2:18
+        _5 = Lt(_3, _4);                 // bb0[7]: scope 1 at $DIR/region_subtyping_basic.rs:+2:14: +2:18
+        assert(move _5, "index out of bounds: the length is {} but the index is {}", move _4, _3) -> [success: bb1, unwind: bb7]; // bb0[8]: scope 1 at $DIR/region_subtyping_basic.rs:+2:14: +2:18
     }
 
     bb1: {
-        _2 = &'_#2r _1[_3];              // bb1[0]: scope 1 at $DIR/region-subtyping-basic.rs:+2:13: +2:18
-        FakeRead(ForLet(None), _2);      // bb1[1]: scope 1 at $DIR/region-subtyping-basic.rs:+2:9: +2:10
-        StorageLive(_6);                 // bb1[2]: scope 2 at $DIR/region-subtyping-basic.rs:+3:9: +3:10
-        _6 = _2;                         // bb1[3]: scope 2 at $DIR/region-subtyping-basic.rs:+3:13: +3:14
-        FakeRead(ForLet(None), _6);      // bb1[4]: scope 2 at $DIR/region-subtyping-basic.rs:+3:9: +3:10
-        StorageLive(_7);                 // bb1[5]: scope 3 at $DIR/region-subtyping-basic.rs:+4:8: +4:12
-        _7 = const ConstValue(Scalar(0x01): bool); // bb1[6]: scope 3 at $DIR/region-subtyping-basic.rs:+4:8: +4:12
-        switchInt(move _7) -> [ConstValue(Scalar(0x00): bool): bb4, otherwise: bb2]; // bb1[7]: scope 3 at $DIR/region-subtyping-basic.rs:+4:8: +4:12
+        _2 = &'_#2r _1[_3];              // bb1[0]: scope 1 at $DIR/region_subtyping_basic.rs:+2:13: +2:18
+        FakeRead(ForLet(None), _2);      // bb1[1]: scope 1 at $DIR/region_subtyping_basic.rs:+2:9: +2:10
+        StorageLive(_6);                 // bb1[2]: scope 2 at $DIR/region_subtyping_basic.rs:+3:9: +3:10
+        _6 = _2;                         // bb1[3]: scope 2 at $DIR/region_subtyping_basic.rs:+3:13: +3:14
+        FakeRead(ForLet(None), _6);      // bb1[4]: scope 2 at $DIR/region_subtyping_basic.rs:+3:9: +3:10
+        StorageLive(_7);                 // bb1[5]: scope 3 at $DIR/region_subtyping_basic.rs:+4:8: +4:12
+        _7 = const ConstValue(Scalar(0x01): bool); // bb1[6]: scope 3 at $DIR/region_subtyping_basic.rs:+4:8: +4:12
+        switchInt(move _7) -> [ConstValue(Scalar(0x00): bool): bb4, otherwise: bb2]; // bb1[7]: scope 3 at $DIR/region_subtyping_basic.rs:+4:8: +4:12
     }
 
     bb2: {
-        StorageLive(_8);                 // bb2[0]: scope 3 at $DIR/region-subtyping-basic.rs:+5:9: +5:18
-        StorageLive(_9);                 // bb2[1]: scope 3 at $DIR/region-subtyping-basic.rs:+5:15: +5:17
-        _9 = (*_6);                      // bb2[2]: scope 3 at $DIR/region-subtyping-basic.rs:+5:15: +5:17
-        _8 = ConstValue(ZeroSized: fn(usize) -> bool {use_x})(move _9) -> [return: bb3, unwind: bb7]; // bb2[3]: scope 3 at $DIR/region-subtyping-basic.rs:+5:9: +5:18
+        StorageLive(_8);                 // bb2[0]: scope 3 at $DIR/region_subtyping_basic.rs:+5:9: +5:18
+        StorageLive(_9);                 // bb2[1]: scope 3 at $DIR/region_subtyping_basic.rs:+5:15: +5:17
+        _9 = (*_6);                      // bb2[2]: scope 3 at $DIR/region_subtyping_basic.rs:+5:15: +5:17
+        _8 = ConstValue(ZeroSized: fn(usize) -> bool {use_x})(move _9) -> [return: bb3, unwind: bb7]; // bb2[3]: scope 3 at $DIR/region_subtyping_basic.rs:+5:9: +5:18
                                          // mir::Constant
-                                         // + span: $DIR/region-subtyping-basic.rs:21:9: 21:14
+                                         // + span: $DIR/region_subtyping_basic.rs:21:9: 21:14
                                          // + literal: Const { ty: fn(usize) -> bool {use_x}, val: Value(<ZST>) }
     }
 
     bb3: {
-        StorageDead(_9);                 // bb3[0]: scope 3 at $DIR/region-subtyping-basic.rs:+5:17: +5:18
-        StorageDead(_8);                 // bb3[1]: scope 3 at $DIR/region-subtyping-basic.rs:+5:18: +5:19
-        _0 = const ConstValue(ZeroSized: ()); // bb3[2]: scope 3 at $DIR/region-subtyping-basic.rs:+4:13: +6:6
-        goto -> bb6;                     // bb3[3]: scope 3 at $DIR/region-subtyping-basic.rs:+4:5: +8:6
+        StorageDead(_9);                 // bb3[0]: scope 3 at $DIR/region_subtyping_basic.rs:+5:17: +5:18
+        StorageDead(_8);                 // bb3[1]: scope 3 at $DIR/region_subtyping_basic.rs:+5:18: +5:19
+        _0 = const ConstValue(ZeroSized: ()); // bb3[2]: scope 3 at $DIR/region_subtyping_basic.rs:+4:13: +6:6
+        goto -> bb6;                     // bb3[3]: scope 3 at $DIR/region_subtyping_basic.rs:+4:5: +8:6
     }
 
     bb4: {
-        StorageLive(_10);                // bb4[0]: scope 3 at $DIR/region-subtyping-basic.rs:+7:9: +7:18
-        _10 = ConstValue(ZeroSized: fn(usize) -> bool {use_x})(const ConstValue(Scalar(0x00000016): usize)) -> [return: bb5, unwind: bb7]; // bb4[1]: scope 3 at $DIR/region-subtyping-basic.rs:+7:9: +7:18
+        StorageLive(_10);                // bb4[0]: scope 3 at $DIR/region_subtyping_basic.rs:+7:9: +7:18
+        _10 = ConstValue(ZeroSized: fn(usize) -> bool {use_x})(const ConstValue(Scalar(0x00000016): usize)) -> [return: bb5, unwind: bb7]; // bb4[1]: scope 3 at $DIR/region_subtyping_basic.rs:+7:9: +7:18
                                          // mir::Constant
-                                         // + span: $DIR/region-subtyping-basic.rs:23:9: 23:14
+                                         // + span: $DIR/region_subtyping_basic.rs:23:9: 23:14
                                          // + literal: Const { ty: fn(usize) -> bool {use_x}, val: Value(<ZST>) }
     }
 
     bb5: {
-        StorageDead(_10);                // bb5[0]: scope 3 at $DIR/region-subtyping-basic.rs:+7:18: +7:19
-        _0 = const ConstValue(ZeroSized: ()); // bb5[1]: scope 3 at $DIR/region-subtyping-basic.rs:+6:12: +8:6
-        goto -> bb6;                     // bb5[2]: scope 3 at $DIR/region-subtyping-basic.rs:+4:5: +8:6
+        StorageDead(_10);                // bb5[0]: scope 3 at $DIR/region_subtyping_basic.rs:+7:18: +7:19
+        _0 = const ConstValue(ZeroSized: ()); // bb5[1]: scope 3 at $DIR/region_subtyping_basic.rs:+6:12: +8:6
+        goto -> bb6;                     // bb5[2]: scope 3 at $DIR/region_subtyping_basic.rs:+4:5: +8:6
     }
 
     bb6: {
-        StorageDead(_7);                 // bb6[0]: scope 3 at $DIR/region-subtyping-basic.rs:+8:5: +8:6
-        StorageDead(_6);                 // bb6[1]: scope 2 at $DIR/region-subtyping-basic.rs:+9:1: +9:2
-        StorageDead(_3);                 // bb6[2]: scope 1 at $DIR/region-subtyping-basic.rs:+9:1: +9:2
-        StorageDead(_2);                 // bb6[3]: scope 1 at $DIR/region-subtyping-basic.rs:+9:1: +9:2
-        StorageDead(_1);                 // bb6[4]: scope 0 at $DIR/region-subtyping-basic.rs:+9:1: +9:2
-        return;                          // bb6[5]: scope 0 at $DIR/region-subtyping-basic.rs:+9:2: +9:2
+        StorageDead(_7);                 // bb6[0]: scope 3 at $DIR/region_subtyping_basic.rs:+8:5: +8:6
+        StorageDead(_6);                 // bb6[1]: scope 2 at $DIR/region_subtyping_basic.rs:+9:1: +9:2
+        StorageDead(_3);                 // bb6[2]: scope 1 at $DIR/region_subtyping_basic.rs:+9:1: +9:2
+        StorageDead(_2);                 // bb6[3]: scope 1 at $DIR/region_subtyping_basic.rs:+9:1: +9:2
+        StorageDead(_1);                 // bb6[4]: scope 0 at $DIR/region_subtyping_basic.rs:+9:1: +9:2
+        return;                          // bb6[5]: scope 0 at $DIR/region_subtyping_basic.rs:+9:2: +9:2
     }
 
     bb7 (cleanup): {
-        resume;                          // bb7[0]: scope 0 at $DIR/region-subtyping-basic.rs:+0:1: +9:2
+        resume;                          // bb7[0]: scope 0 at $DIR/region_subtyping_basic.rs:+0:1: +9:2
     }
 }
diff --git a/src/test/mir-opt/nll/region_subtyping_basic.main.nll.0.64bit.mir b/src/test/mir-opt/nll/region_subtyping_basic.main.nll.0.64bit.mir
index 4f6256a67f46f..39a53702a4cbb 100644
--- a/src/test/mir-opt/nll/region_subtyping_basic.main.nll.0.64bit.mir
+++ b/src/test/mir-opt/nll/region_subtyping_basic.main.nll.0.64bit.mir
@@ -17,95 +17,95 @@
 | '_#2r live at {bb1[0]}
 | '_#3r live at {bb1[1..=3]}
 | '_#4r live at {bb1[4..=7], bb2[0..=2]}
-| '_#2r: '_#3r due to Assignment at Single(bb1[0]) ($DIR/region-subtyping-basic.rs:18:13: 18:18 (#0)
-| '_#3r: '_#4r due to Assignment at Single(bb1[3]) ($DIR/region-subtyping-basic.rs:19:13: 19:14 (#0)
+| '_#2r: '_#3r due to Assignment at Single(bb1[0]) ($DIR/region_subtyping_basic.rs:18:13: 18:18 (#0)
+| '_#3r: '_#4r due to Assignment at Single(bb1[3]) ($DIR/region_subtyping_basic.rs:19:13: 19:14 (#0)
 |
 fn main() -> () {
-    let mut _0: ();                      // return place in scope 0 at $DIR/region-subtyping-basic.rs:+0:11: +0:11
-    let mut _1: [usize; Const { ty: usize, kind: Value(Leaf(0x0000000000000003)) }]; // in scope 0 at $DIR/region-subtyping-basic.rs:+1:9: +1:14
-    let _3: usize;                       // in scope 0 at $DIR/region-subtyping-basic.rs:+2:16: +2:17
-    let mut _4: usize;                   // in scope 0 at $DIR/region-subtyping-basic.rs:+2:14: +2:18
-    let mut _5: bool;                    // in scope 0 at $DIR/region-subtyping-basic.rs:+2:14: +2:18
-    let mut _7: bool;                    // in scope 0 at $DIR/region-subtyping-basic.rs:+4:8: +4:12
-    let _8: bool;                        // in scope 0 at $DIR/region-subtyping-basic.rs:+5:9: +5:18
-    let mut _9: usize;                   // in scope 0 at $DIR/region-subtyping-basic.rs:+5:15: +5:17
-    let _10: bool;                       // in scope 0 at $DIR/region-subtyping-basic.rs:+7:9: +7:18
+    let mut _0: ();                      // return place in scope 0 at $DIR/region_subtyping_basic.rs:+0:11: +0:11
+    let mut _1: [usize; Const { ty: usize, kind: Value(Leaf(0x0000000000000003)) }]; // in scope 0 at $DIR/region_subtyping_basic.rs:+1:9: +1:14
+    let _3: usize;                       // in scope 0 at $DIR/region_subtyping_basic.rs:+2:16: +2:17
+    let mut _4: usize;                   // in scope 0 at $DIR/region_subtyping_basic.rs:+2:14: +2:18
+    let mut _5: bool;                    // in scope 0 at $DIR/region_subtyping_basic.rs:+2:14: +2:18
+    let mut _7: bool;                    // in scope 0 at $DIR/region_subtyping_basic.rs:+4:8: +4:12
+    let _8: bool;                        // in scope 0 at $DIR/region_subtyping_basic.rs:+5:9: +5:18
+    let mut _9: usize;                   // in scope 0 at $DIR/region_subtyping_basic.rs:+5:15: +5:17
+    let _10: bool;                       // in scope 0 at $DIR/region_subtyping_basic.rs:+7:9: +7:18
     scope 1 {
-        debug v => _1;                   // in scope 1 at $DIR/region-subtyping-basic.rs:+1:9: +1:14
-        let _2: &'_#3r usize;            // in scope 1 at $DIR/region-subtyping-basic.rs:+2:9: +2:10
+        debug v => _1;                   // in scope 1 at $DIR/region_subtyping_basic.rs:+1:9: +1:14
+        let _2: &'_#3r usize;            // in scope 1 at $DIR/region_subtyping_basic.rs:+2:9: +2:10
         scope 2 {
-            debug p => _2;               // in scope 2 at $DIR/region-subtyping-basic.rs:+2:9: +2:10
-            let _6: &'_#4r usize;        // in scope 2 at $DIR/region-subtyping-basic.rs:+3:9: +3:10
+            debug p => _2;               // in scope 2 at $DIR/region_subtyping_basic.rs:+2:9: +2:10
+            let _6: &'_#4r usize;        // in scope 2 at $DIR/region_subtyping_basic.rs:+3:9: +3:10
             scope 3 {
-                debug q => _6;           // in scope 3 at $DIR/region-subtyping-basic.rs:+3:9: +3:10
+                debug q => _6;           // in scope 3 at $DIR/region_subtyping_basic.rs:+3:9: +3:10
             }
         }
     }
 
     bb0: {
-        StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/region-subtyping-basic.rs:+1:9: +1:14
-        _1 = [const ConstValue(Scalar(0x0000000000000001): usize), const ConstValue(Scalar(0x0000000000000002): usize), const ConstValue(Scalar(0x0000000000000003): usize)]; // bb0[1]: scope 0 at $DIR/region-subtyping-basic.rs:+1:17: +1:26
-        FakeRead(ForLet(None), _1);      // bb0[2]: scope 0 at $DIR/region-subtyping-basic.rs:+1:9: +1:14
-        StorageLive(_2);                 // bb0[3]: scope 1 at $DIR/region-subtyping-basic.rs:+2:9: +2:10
-        StorageLive(_3);                 // bb0[4]: scope 1 at $DIR/region-subtyping-basic.rs:+2:16: +2:17
-        _3 = const ConstValue(Scalar(0x0000000000000000): usize); // bb0[5]: scope 1 at $DIR/region-subtyping-basic.rs:+2:16: +2:17
-        _4 = Len(_1);                    // bb0[6]: scope 1 at $DIR/region-subtyping-basic.rs:+2:14: +2:18
-        _5 = Lt(_3, _4);                 // bb0[7]: scope 1 at $DIR/region-subtyping-basic.rs:+2:14: +2:18
-        assert(move _5, "index out of bounds: the length is {} but the index is {}", move _4, _3) -> [success: bb1, unwind: bb7]; // bb0[8]: scope 1 at $DIR/region-subtyping-basic.rs:+2:14: +2:18
+        StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/region_subtyping_basic.rs:+1:9: +1:14
+        _1 = [const ConstValue(Scalar(0x0000000000000001): usize), const ConstValue(Scalar(0x0000000000000002): usize), const ConstValue(Scalar(0x0000000000000003): usize)]; // bb0[1]: scope 0 at $DIR/region_subtyping_basic.rs:+1:17: +1:26
+        FakeRead(ForLet(None), _1);      // bb0[2]: scope 0 at $DIR/region_subtyping_basic.rs:+1:9: +1:14
+        StorageLive(_2);                 // bb0[3]: scope 1 at $DIR/region_subtyping_basic.rs:+2:9: +2:10
+        StorageLive(_3);                 // bb0[4]: scope 1 at $DIR/region_subtyping_basic.rs:+2:16: +2:17
+        _3 = const ConstValue(Scalar(0x0000000000000000): usize); // bb0[5]: scope 1 at $DIR/region_subtyping_basic.rs:+2:16: +2:17
+        _4 = Len(_1);                    // bb0[6]: scope 1 at $DIR/region_subtyping_basic.rs:+2:14: +2:18
+        _5 = Lt(_3, _4);                 // bb0[7]: scope 1 at $DIR/region_subtyping_basic.rs:+2:14: +2:18
+        assert(move _5, "index out of bounds: the length is {} but the index is {}", move _4, _3) -> [success: bb1, unwind: bb7]; // bb0[8]: scope 1 at $DIR/region_subtyping_basic.rs:+2:14: +2:18
     }
 
     bb1: {
-        _2 = &'_#2r _1[_3];              // bb1[0]: scope 1 at $DIR/region-subtyping-basic.rs:+2:13: +2:18
-        FakeRead(ForLet(None), _2);      // bb1[1]: scope 1 at $DIR/region-subtyping-basic.rs:+2:9: +2:10
-        StorageLive(_6);                 // bb1[2]: scope 2 at $DIR/region-subtyping-basic.rs:+3:9: +3:10
-        _6 = _2;                         // bb1[3]: scope 2 at $DIR/region-subtyping-basic.rs:+3:13: +3:14
-        FakeRead(ForLet(None), _6);      // bb1[4]: scope 2 at $DIR/region-subtyping-basic.rs:+3:9: +3:10
-        StorageLive(_7);                 // bb1[5]: scope 3 at $DIR/region-subtyping-basic.rs:+4:8: +4:12
-        _7 = const ConstValue(Scalar(0x01): bool); // bb1[6]: scope 3 at $DIR/region-subtyping-basic.rs:+4:8: +4:12
-        switchInt(move _7) -> [ConstValue(Scalar(0x00): bool): bb4, otherwise: bb2]; // bb1[7]: scope 3 at $DIR/region-subtyping-basic.rs:+4:8: +4:12
+        _2 = &'_#2r _1[_3];              // bb1[0]: scope 1 at $DIR/region_subtyping_basic.rs:+2:13: +2:18
+        FakeRead(ForLet(None), _2);      // bb1[1]: scope 1 at $DIR/region_subtyping_basic.rs:+2:9: +2:10
+        StorageLive(_6);                 // bb1[2]: scope 2 at $DIR/region_subtyping_basic.rs:+3:9: +3:10
+        _6 = _2;                         // bb1[3]: scope 2 at $DIR/region_subtyping_basic.rs:+3:13: +3:14
+        FakeRead(ForLet(None), _6);      // bb1[4]: scope 2 at $DIR/region_subtyping_basic.rs:+3:9: +3:10
+        StorageLive(_7);                 // bb1[5]: scope 3 at $DIR/region_subtyping_basic.rs:+4:8: +4:12
+        _7 = const ConstValue(Scalar(0x01): bool); // bb1[6]: scope 3 at $DIR/region_subtyping_basic.rs:+4:8: +4:12
+        switchInt(move _7) -> [ConstValue(Scalar(0x00): bool): bb4, otherwise: bb2]; // bb1[7]: scope 3 at $DIR/region_subtyping_basic.rs:+4:8: +4:12
     }
 
     bb2: {
-        StorageLive(_8);                 // bb2[0]: scope 3 at $DIR/region-subtyping-basic.rs:+5:9: +5:18
-        StorageLive(_9);                 // bb2[1]: scope 3 at $DIR/region-subtyping-basic.rs:+5:15: +5:17
-        _9 = (*_6);                      // bb2[2]: scope 3 at $DIR/region-subtyping-basic.rs:+5:15: +5:17
-        _8 = ConstValue(ZeroSized: fn(usize) -> bool {use_x})(move _9) -> [return: bb3, unwind: bb7]; // bb2[3]: scope 3 at $DIR/region-subtyping-basic.rs:+5:9: +5:18
+        StorageLive(_8);                 // bb2[0]: scope 3 at $DIR/region_subtyping_basic.rs:+5:9: +5:18
+        StorageLive(_9);                 // bb2[1]: scope 3 at $DIR/region_subtyping_basic.rs:+5:15: +5:17
+        _9 = (*_6);                      // bb2[2]: scope 3 at $DIR/region_subtyping_basic.rs:+5:15: +5:17
+        _8 = ConstValue(ZeroSized: fn(usize) -> bool {use_x})(move _9) -> [return: bb3, unwind: bb7]; // bb2[3]: scope 3 at $DIR/region_subtyping_basic.rs:+5:9: +5:18
                                          // mir::Constant
-                                         // + span: $DIR/region-subtyping-basic.rs:21:9: 21:14
+                                         // + span: $DIR/region_subtyping_basic.rs:21:9: 21:14
                                          // + literal: Const { ty: fn(usize) -> bool {use_x}, val: Value(<ZST>) }
     }
 
     bb3: {
-        StorageDead(_9);                 // bb3[0]: scope 3 at $DIR/region-subtyping-basic.rs:+5:17: +5:18
-        StorageDead(_8);                 // bb3[1]: scope 3 at $DIR/region-subtyping-basic.rs:+5:18: +5:19
-        _0 = const ConstValue(ZeroSized: ()); // bb3[2]: scope 3 at $DIR/region-subtyping-basic.rs:+4:13: +6:6
-        goto -> bb6;                     // bb3[3]: scope 3 at $DIR/region-subtyping-basic.rs:+4:5: +8:6
+        StorageDead(_9);                 // bb3[0]: scope 3 at $DIR/region_subtyping_basic.rs:+5:17: +5:18
+        StorageDead(_8);                 // bb3[1]: scope 3 at $DIR/region_subtyping_basic.rs:+5:18: +5:19
+        _0 = const ConstValue(ZeroSized: ()); // bb3[2]: scope 3 at $DIR/region_subtyping_basic.rs:+4:13: +6:6
+        goto -> bb6;                     // bb3[3]: scope 3 at $DIR/region_subtyping_basic.rs:+4:5: +8:6
     }
 
     bb4: {
-        StorageLive(_10);                // bb4[0]: scope 3 at $DIR/region-subtyping-basic.rs:+7:9: +7:18
-        _10 = ConstValue(ZeroSized: fn(usize) -> bool {use_x})(const ConstValue(Scalar(0x0000000000000016): usize)) -> [return: bb5, unwind: bb7]; // bb4[1]: scope 3 at $DIR/region-subtyping-basic.rs:+7:9: +7:18
+        StorageLive(_10);                // bb4[0]: scope 3 at $DIR/region_subtyping_basic.rs:+7:9: +7:18
+        _10 = ConstValue(ZeroSized: fn(usize) -> bool {use_x})(const ConstValue(Scalar(0x0000000000000016): usize)) -> [return: bb5, unwind: bb7]; // bb4[1]: scope 3 at $DIR/region_subtyping_basic.rs:+7:9: +7:18
                                          // mir::Constant
-                                         // + span: $DIR/region-subtyping-basic.rs:23:9: 23:14
+                                         // + span: $DIR/region_subtyping_basic.rs:23:9: 23:14
                                          // + literal: Const { ty: fn(usize) -> bool {use_x}, val: Value(<ZST>) }
     }
 
     bb5: {
-        StorageDead(_10);                // bb5[0]: scope 3 at $DIR/region-subtyping-basic.rs:+7:18: +7:19
-        _0 = const ConstValue(ZeroSized: ()); // bb5[1]: scope 3 at $DIR/region-subtyping-basic.rs:+6:12: +8:6
-        goto -> bb6;                     // bb5[2]: scope 3 at $DIR/region-subtyping-basic.rs:+4:5: +8:6
+        StorageDead(_10);                // bb5[0]: scope 3 at $DIR/region_subtyping_basic.rs:+7:18: +7:19
+        _0 = const ConstValue(ZeroSized: ()); // bb5[1]: scope 3 at $DIR/region_subtyping_basic.rs:+6:12: +8:6
+        goto -> bb6;                     // bb5[2]: scope 3 at $DIR/region_subtyping_basic.rs:+4:5: +8:6
     }
 
     bb6: {
-        StorageDead(_7);                 // bb6[0]: scope 3 at $DIR/region-subtyping-basic.rs:+8:5: +8:6
-        StorageDead(_6);                 // bb6[1]: scope 2 at $DIR/region-subtyping-basic.rs:+9:1: +9:2
-        StorageDead(_3);                 // bb6[2]: scope 1 at $DIR/region-subtyping-basic.rs:+9:1: +9:2
-        StorageDead(_2);                 // bb6[3]: scope 1 at $DIR/region-subtyping-basic.rs:+9:1: +9:2
-        StorageDead(_1);                 // bb6[4]: scope 0 at $DIR/region-subtyping-basic.rs:+9:1: +9:2
-        return;                          // bb6[5]: scope 0 at $DIR/region-subtyping-basic.rs:+9:2: +9:2
+        StorageDead(_7);                 // bb6[0]: scope 3 at $DIR/region_subtyping_basic.rs:+8:5: +8:6
+        StorageDead(_6);                 // bb6[1]: scope 2 at $DIR/region_subtyping_basic.rs:+9:1: +9:2
+        StorageDead(_3);                 // bb6[2]: scope 1 at $DIR/region_subtyping_basic.rs:+9:1: +9:2
+        StorageDead(_2);                 // bb6[3]: scope 1 at $DIR/region_subtyping_basic.rs:+9:1: +9:2
+        StorageDead(_1);                 // bb6[4]: scope 0 at $DIR/region_subtyping_basic.rs:+9:1: +9:2
+        return;                          // bb6[5]: scope 0 at $DIR/region_subtyping_basic.rs:+9:2: +9:2
     }
 
     bb7 (cleanup): {
-        resume;                          // bb7[0]: scope 0 at $DIR/region-subtyping-basic.rs:+0:1: +9:2
+        resume;                          // bb7[0]: scope 0 at $DIR/region_subtyping_basic.rs:+0:1: +9:2
     }
 }
diff --git a/src/test/mir-opt/nll/region-subtyping-basic.rs b/src/test/mir-opt/nll/region_subtyping_basic.rs
similarity index 100%
rename from src/test/mir-opt/nll/region-subtyping-basic.rs
rename to src/test/mir-opt/nll/region_subtyping_basic.rs
diff --git a/src/test/mir-opt/no-drop-for-inactive-variant.rs b/src/test/mir-opt/no_drop_for_inactive_variant.rs
similarity index 100%
rename from src/test/mir-opt/no-drop-for-inactive-variant.rs
rename to src/test/mir-opt/no_drop_for_inactive_variant.rs
diff --git a/src/test/mir-opt/no_drop_for_inactive_variant.unwrap.SimplifyCfg-elaborate-drops.after.mir b/src/test/mir-opt/no_drop_for_inactive_variant.unwrap.SimplifyCfg-elaborate-drops.after.mir
index 50fd98ff13a62..e708255cea430 100644
--- a/src/test/mir-opt/no_drop_for_inactive_variant.unwrap.SimplifyCfg-elaborate-drops.after.mir
+++ b/src/test/mir-opt/no_drop_for_inactive_variant.unwrap.SimplifyCfg-elaborate-drops.after.mir
@@ -1,21 +1,21 @@
 // MIR for `unwrap` after SimplifyCfg-elaborate-drops
 
 fn unwrap(_1: Option<T>) -> T {
-    debug opt => _1;                     // in scope 0 at $DIR/no-drop-for-inactive-variant.rs:+0:14: +0:17
-    let mut _0: T;                       // return place in scope 0 at $DIR/no-drop-for-inactive-variant.rs:+0:33: +0:34
-    let mut _2: isize;                   // in scope 0 at $DIR/no-drop-for-inactive-variant.rs:+2:9: +2:16
-    let _3: T;                           // in scope 0 at $DIR/no-drop-for-inactive-variant.rs:+2:14: +2:15
+    debug opt => _1;                     // in scope 0 at $DIR/no_drop_for_inactive_variant.rs:+0:14: +0:17
+    let mut _0: T;                       // return place in scope 0 at $DIR/no_drop_for_inactive_variant.rs:+0:33: +0:34
+    let mut _2: isize;                   // in scope 0 at $DIR/no_drop_for_inactive_variant.rs:+2:9: +2:16
+    let _3: T;                           // in scope 0 at $DIR/no_drop_for_inactive_variant.rs:+2:14: +2:15
     let mut _4: !;                       // in scope 0 at $SRC_DIR/std/src/panic.rs:LL:COL
-    let mut _5: isize;                   // in scope 0 at $DIR/no-drop-for-inactive-variant.rs:+5:1: +5:2
-    let mut _6: isize;                   // in scope 0 at $DIR/no-drop-for-inactive-variant.rs:+5:1: +5:2
-    let mut _7: isize;                   // in scope 0 at $DIR/no-drop-for-inactive-variant.rs:+5:1: +5:2
+    let mut _5: isize;                   // in scope 0 at $DIR/no_drop_for_inactive_variant.rs:+5:1: +5:2
+    let mut _6: isize;                   // in scope 0 at $DIR/no_drop_for_inactive_variant.rs:+5:1: +5:2
+    let mut _7: isize;                   // in scope 0 at $DIR/no_drop_for_inactive_variant.rs:+5:1: +5:2
     scope 1 {
-        debug x => _3;                   // in scope 1 at $DIR/no-drop-for-inactive-variant.rs:+2:14: +2:15
+        debug x => _3;                   // in scope 1 at $DIR/no_drop_for_inactive_variant.rs:+2:14: +2:15
     }
 
     bb0: {
-        _2 = discriminant(_1);           // scope 0 at $DIR/no-drop-for-inactive-variant.rs:+1:11: +1:14
-        switchInt(move _2) -> [0_isize: bb1, 1_isize: bb3, otherwise: bb2]; // scope 0 at $DIR/no-drop-for-inactive-variant.rs:+1:5: +1:14
+        _2 = discriminant(_1);           // scope 0 at $DIR/no_drop_for_inactive_variant.rs:+1:11: +1:14
+        switchInt(move _2) -> [0_isize: bb1, 1_isize: bb3, otherwise: bb2]; // scope 0 at $DIR/no_drop_for_inactive_variant.rs:+1:5: +1:14
     }
 
     bb1: {
@@ -30,20 +30,20 @@ fn unwrap(_1: Option<T>) -> T {
     }
 
     bb2: {
-        unreachable;                     // scope 0 at $DIR/no-drop-for-inactive-variant.rs:+1:11: +1:14
+        unreachable;                     // scope 0 at $DIR/no_drop_for_inactive_variant.rs:+1:11: +1:14
     }
 
     bb3: {
-        StorageLive(_3);                 // scope 0 at $DIR/no-drop-for-inactive-variant.rs:+2:14: +2:15
-        _3 = move ((_1 as Some).0: T);   // scope 0 at $DIR/no-drop-for-inactive-variant.rs:+2:14: +2:15
-        _0 = move _3;                    // scope 1 at $DIR/no-drop-for-inactive-variant.rs:+2:20: +2:21
-        StorageDead(_3);                 // scope 0 at $DIR/no-drop-for-inactive-variant.rs:+2:20: +2:21
-        _5 = discriminant(_1);           // scope 0 at $DIR/no-drop-for-inactive-variant.rs:+5:1: +5:2
-        return;                          // scope 0 at $DIR/no-drop-for-inactive-variant.rs:+5:2: +5:2
+        StorageLive(_3);                 // scope 0 at $DIR/no_drop_for_inactive_variant.rs:+2:14: +2:15
+        _3 = move ((_1 as Some).0: T);   // scope 0 at $DIR/no_drop_for_inactive_variant.rs:+2:14: +2:15
+        _0 = move _3;                    // scope 1 at $DIR/no_drop_for_inactive_variant.rs:+2:20: +2:21
+        StorageDead(_3);                 // scope 0 at $DIR/no_drop_for_inactive_variant.rs:+2:20: +2:21
+        _5 = discriminant(_1);           // scope 0 at $DIR/no_drop_for_inactive_variant.rs:+5:1: +5:2
+        return;                          // scope 0 at $DIR/no_drop_for_inactive_variant.rs:+5:2: +5:2
     }
 
     bb4 (cleanup): {
-        _7 = discriminant(_1);           // scope 0 at $DIR/no-drop-for-inactive-variant.rs:+5:1: +5:2
-        resume;                          // scope 0 at $DIR/no-drop-for-inactive-variant.rs:+0:1: +5:2
+        _7 = discriminant(_1);           // scope 0 at $DIR/no_drop_for_inactive_variant.rs:+5:1: +5:2
+        resume;                          // scope 0 at $DIR/no_drop_for_inactive_variant.rs:+0:1: +5:2
     }
 }
diff --git a/src/test/mir-opt/no_spurious_drop_after_call.main.ElaborateDrops.before.mir b/src/test/mir-opt/no_spurious_drop_after_call.main.ElaborateDrops.before.mir
index 963e7cde6567b..0cb34a2f27476 100644
--- a/src/test/mir-opt/no_spurious_drop_after_call.main.ElaborateDrops.before.mir
+++ b/src/test/mir-opt/no_spurious_drop_after_call.main.ElaborateDrops.before.mir
@@ -1,49 +1,49 @@
 // MIR for `main` before ElaborateDrops
 
 fn main() -> () {
-    let mut _0: ();                      // return place in scope 0 at $DIR/no-spurious-drop-after-call.rs:+0:11: +0:11
-    let _1: ();                          // in scope 0 at $DIR/no-spurious-drop-after-call.rs:+1:5: +1:35
-    let mut _2: std::string::String;     // in scope 0 at $DIR/no-spurious-drop-after-call.rs:+1:20: +1:34
-    let mut _3: &str;                    // in scope 0 at $DIR/no-spurious-drop-after-call.rs:+1:20: +1:34
-    let _4: &str;                        // in scope 0 at $DIR/no-spurious-drop-after-call.rs:+1:20: +1:22
+    let mut _0: ();                      // return place in scope 0 at $DIR/no_spurious_drop_after_call.rs:+0:11: +0:11
+    let _1: ();                          // in scope 0 at $DIR/no_spurious_drop_after_call.rs:+1:5: +1:35
+    let mut _2: std::string::String;     // in scope 0 at $DIR/no_spurious_drop_after_call.rs:+1:20: +1:34
+    let mut _3: &str;                    // in scope 0 at $DIR/no_spurious_drop_after_call.rs:+1:20: +1:34
+    let _4: &str;                        // in scope 0 at $DIR/no_spurious_drop_after_call.rs:+1:20: +1:22
 
     bb0: {
-        StorageLive(_1);                 // scope 0 at $DIR/no-spurious-drop-after-call.rs:+1:5: +1:35
-        StorageLive(_2);                 // scope 0 at $DIR/no-spurious-drop-after-call.rs:+1:20: +1:34
-        StorageLive(_3);                 // scope 0 at $DIR/no-spurious-drop-after-call.rs:+1:20: +1:34
-        StorageLive(_4);                 // scope 0 at $DIR/no-spurious-drop-after-call.rs:+1:20: +1:22
-        _4 = const "";                   // scope 0 at $DIR/no-spurious-drop-after-call.rs:+1:20: +1:22
+        StorageLive(_1);                 // scope 0 at $DIR/no_spurious_drop_after_call.rs:+1:5: +1:35
+        StorageLive(_2);                 // scope 0 at $DIR/no_spurious_drop_after_call.rs:+1:20: +1:34
+        StorageLive(_3);                 // scope 0 at $DIR/no_spurious_drop_after_call.rs:+1:20: +1:34
+        StorageLive(_4);                 // scope 0 at $DIR/no_spurious_drop_after_call.rs:+1:20: +1:22
+        _4 = const "";                   // scope 0 at $DIR/no_spurious_drop_after_call.rs:+1:20: +1:22
                                          // mir::Constant
-                                         // + span: $DIR/no-spurious-drop-after-call.rs:9:20: 9:22
+                                         // + span: $DIR/no_spurious_drop_after_call.rs:9:20: 9:22
                                          // + literal: Const { ty: &str, val: Value(Slice(..)) }
-        _3 = &(*_4);                     // scope 0 at $DIR/no-spurious-drop-after-call.rs:+1:20: +1:34
-        _2 = <str as ToString>::to_string(move _3) -> bb1; // scope 0 at $DIR/no-spurious-drop-after-call.rs:+1:20: +1:34
+        _3 = &(*_4);                     // scope 0 at $DIR/no_spurious_drop_after_call.rs:+1:20: +1:34
+        _2 = <str as ToString>::to_string(move _3) -> bb1; // scope 0 at $DIR/no_spurious_drop_after_call.rs:+1:20: +1:34
                                          // mir::Constant
-                                         // + span: $DIR/no-spurious-drop-after-call.rs:9:23: 9:32
+                                         // + span: $DIR/no_spurious_drop_after_call.rs:9:23: 9:32
                                          // + literal: Const { ty: for<'a> fn(&'a str) -> String {<str as ToString>::to_string}, val: Value(<ZST>) }
     }
 
     bb1: {
-        StorageDead(_3);                 // scope 0 at $DIR/no-spurious-drop-after-call.rs:+1:33: +1:34
-        _1 = std::mem::drop::<String>(move _2) -> [return: bb2, unwind: bb3]; // scope 0 at $DIR/no-spurious-drop-after-call.rs:+1:5: +1:35
+        StorageDead(_3);                 // scope 0 at $DIR/no_spurious_drop_after_call.rs:+1:33: +1:34
+        _1 = std::mem::drop::<String>(move _2) -> [return: bb2, unwind: bb3]; // scope 0 at $DIR/no_spurious_drop_after_call.rs:+1:5: +1:35
                                          // mir::Constant
-                                         // + span: $DIR/no-spurious-drop-after-call.rs:9:5: 9:19
+                                         // + span: $DIR/no_spurious_drop_after_call.rs:9:5: 9:19
                                          // + literal: Const { ty: fn(String) {std::mem::drop::<String>}, val: Value(<ZST>) }
     }
 
     bb2: {
-        StorageDead(_2);                 // scope 0 at $DIR/no-spurious-drop-after-call.rs:+1:34: +1:35
-        StorageDead(_4);                 // scope 0 at $DIR/no-spurious-drop-after-call.rs:+1:35: +1:36
-        StorageDead(_1);                 // scope 0 at $DIR/no-spurious-drop-after-call.rs:+1:35: +1:36
-        _0 = const ();                   // scope 0 at $DIR/no-spurious-drop-after-call.rs:+0:11: +2:2
-        return;                          // scope 0 at $DIR/no-spurious-drop-after-call.rs:+2:2: +2:2
+        StorageDead(_2);                 // scope 0 at $DIR/no_spurious_drop_after_call.rs:+1:34: +1:35
+        StorageDead(_4);                 // scope 0 at $DIR/no_spurious_drop_after_call.rs:+1:35: +1:36
+        StorageDead(_1);                 // scope 0 at $DIR/no_spurious_drop_after_call.rs:+1:35: +1:36
+        _0 = const ();                   // scope 0 at $DIR/no_spurious_drop_after_call.rs:+0:11: +2:2
+        return;                          // scope 0 at $DIR/no_spurious_drop_after_call.rs:+2:2: +2:2
     }
 
     bb3 (cleanup): {
-        drop(_2) -> bb4;                 // scope 0 at $DIR/no-spurious-drop-after-call.rs:+1:34: +1:35
+        drop(_2) -> bb4;                 // scope 0 at $DIR/no_spurious_drop_after_call.rs:+1:34: +1:35
     }
 
     bb4 (cleanup): {
-        resume;                          // scope 0 at $DIR/no-spurious-drop-after-call.rs:+0:1: +2:2
+        resume;                          // scope 0 at $DIR/no_spurious_drop_after_call.rs:+0:1: +2:2
     }
 }
diff --git a/src/test/mir-opt/no-spurious-drop-after-call.rs b/src/test/mir-opt/no_spurious_drop_after_call.rs
similarity index 100%
rename from src/test/mir-opt/no-spurious-drop-after-call.rs
rename to src/test/mir-opt/no_spurious_drop_after_call.rs
diff --git a/src/test/mir-opt/nrvo_simple.nrvo.RenameReturnPlace.diff b/src/test/mir-opt/nrvo_simple.nrvo.RenameReturnPlace.diff
index ce35f920bf627..61a16065bfbdc 100644
--- a/src/test/mir-opt/nrvo_simple.nrvo.RenameReturnPlace.diff
+++ b/src/test/mir-opt/nrvo_simple.nrvo.RenameReturnPlace.diff
@@ -2,42 +2,42 @@
 + // MIR for `nrvo` after RenameReturnPlace
   
   fn nrvo(_1: for<'a> fn(&'a mut [u8; 1024])) -> [u8; 1024] {
-      debug init => _1;                    // in scope 0 at $DIR/nrvo-simple.rs:+0:9: +0:13
--     let mut _0: [u8; 1024];              // return place in scope 0 at $DIR/nrvo-simple.rs:+0:39: +0:49
-+     let mut _0: [u8; 1024];              // return place in scope 0 at $DIR/nrvo-simple.rs:+1:9: +1:16
-      let mut _2: [u8; 1024];              // in scope 0 at $DIR/nrvo-simple.rs:+1:9: +1:16
-      let _3: ();                          // in scope 0 at $DIR/nrvo-simple.rs:+2:5: +2:19
-      let mut _4: for<'a> fn(&'a mut [u8; 1024]); // in scope 0 at $DIR/nrvo-simple.rs:+2:5: +2:9
-      let mut _5: &mut [u8; 1024];         // in scope 0 at $DIR/nrvo-simple.rs:+2:10: +2:18
-      let mut _6: &mut [u8; 1024];         // in scope 0 at $DIR/nrvo-simple.rs:+2:10: +2:18
+      debug init => _1;                    // in scope 0 at $DIR/nrvo_simple.rs:+0:9: +0:13
+-     let mut _0: [u8; 1024];              // return place in scope 0 at $DIR/nrvo_simple.rs:+0:39: +0:49
++     let mut _0: [u8; 1024];              // return place in scope 0 at $DIR/nrvo_simple.rs:+1:9: +1:16
+      let mut _2: [u8; 1024];              // in scope 0 at $DIR/nrvo_simple.rs:+1:9: +1:16
+      let _3: ();                          // in scope 0 at $DIR/nrvo_simple.rs:+2:5: +2:19
+      let mut _4: for<'a> fn(&'a mut [u8; 1024]); // in scope 0 at $DIR/nrvo_simple.rs:+2:5: +2:9
+      let mut _5: &mut [u8; 1024];         // in scope 0 at $DIR/nrvo_simple.rs:+2:10: +2:18
+      let mut _6: &mut [u8; 1024];         // in scope 0 at $DIR/nrvo_simple.rs:+2:10: +2:18
       scope 1 {
--         debug buf => _2;                 // in scope 1 at $DIR/nrvo-simple.rs:+1:9: +1:16
-+         debug buf => _0;                 // in scope 1 at $DIR/nrvo-simple.rs:+1:9: +1:16
+-         debug buf => _2;                 // in scope 1 at $DIR/nrvo_simple.rs:+1:9: +1:16
++         debug buf => _0;                 // in scope 1 at $DIR/nrvo_simple.rs:+1:9: +1:16
       }
   
       bb0: {
--         StorageLive(_2);                 // scope 0 at $DIR/nrvo-simple.rs:+1:9: +1:16
--         _2 = [const 0_u8; 1024];         // scope 0 at $DIR/nrvo-simple.rs:+1:19: +1:28
-+         _0 = [const 0_u8; 1024];         // scope 0 at $DIR/nrvo-simple.rs:+1:19: +1:28
-          StorageLive(_3);                 // scope 1 at $DIR/nrvo-simple.rs:+2:5: +2:19
-          StorageLive(_4);                 // scope 1 at $DIR/nrvo-simple.rs:+2:5: +2:9
-          _4 = _1;                         // scope 1 at $DIR/nrvo-simple.rs:+2:5: +2:9
-          StorageLive(_5);                 // scope 1 at $DIR/nrvo-simple.rs:+2:10: +2:18
-          StorageLive(_6);                 // scope 1 at $DIR/nrvo-simple.rs:+2:10: +2:18
--         _6 = &mut _2;                    // scope 1 at $DIR/nrvo-simple.rs:+2:10: +2:18
-+         _6 = &mut _0;                    // scope 1 at $DIR/nrvo-simple.rs:+2:10: +2:18
-          _5 = &mut (*_6);                 // scope 1 at $DIR/nrvo-simple.rs:+2:10: +2:18
-          _3 = move _4(move _5) -> bb1;    // scope 1 at $DIR/nrvo-simple.rs:+2:5: +2:19
+-         StorageLive(_2);                 // scope 0 at $DIR/nrvo_simple.rs:+1:9: +1:16
+-         _2 = [const 0_u8; 1024];         // scope 0 at $DIR/nrvo_simple.rs:+1:19: +1:28
++         _0 = [const 0_u8; 1024];         // scope 0 at $DIR/nrvo_simple.rs:+1:19: +1:28
+          StorageLive(_3);                 // scope 1 at $DIR/nrvo_simple.rs:+2:5: +2:19
+          StorageLive(_4);                 // scope 1 at $DIR/nrvo_simple.rs:+2:5: +2:9
+          _4 = _1;                         // scope 1 at $DIR/nrvo_simple.rs:+2:5: +2:9
+          StorageLive(_5);                 // scope 1 at $DIR/nrvo_simple.rs:+2:10: +2:18
+          StorageLive(_6);                 // scope 1 at $DIR/nrvo_simple.rs:+2:10: +2:18
+-         _6 = &mut _2;                    // scope 1 at $DIR/nrvo_simple.rs:+2:10: +2:18
++         _6 = &mut _0;                    // scope 1 at $DIR/nrvo_simple.rs:+2:10: +2:18
+          _5 = &mut (*_6);                 // scope 1 at $DIR/nrvo_simple.rs:+2:10: +2:18
+          _3 = move _4(move _5) -> bb1;    // scope 1 at $DIR/nrvo_simple.rs:+2:5: +2:19
       }
   
       bb1: {
-          StorageDead(_5);                 // scope 1 at $DIR/nrvo-simple.rs:+2:18: +2:19
-          StorageDead(_4);                 // scope 1 at $DIR/nrvo-simple.rs:+2:18: +2:19
-          StorageDead(_6);                 // scope 1 at $DIR/nrvo-simple.rs:+2:19: +2:20
-          StorageDead(_3);                 // scope 1 at $DIR/nrvo-simple.rs:+2:19: +2:20
--         _0 = _2;                         // scope 1 at $DIR/nrvo-simple.rs:+3:5: +3:8
--         StorageDead(_2);                 // scope 0 at $DIR/nrvo-simple.rs:+4:1: +4:2
-          return;                          // scope 0 at $DIR/nrvo-simple.rs:+4:2: +4:2
+          StorageDead(_5);                 // scope 1 at $DIR/nrvo_simple.rs:+2:18: +2:19
+          StorageDead(_4);                 // scope 1 at $DIR/nrvo_simple.rs:+2:18: +2:19
+          StorageDead(_6);                 // scope 1 at $DIR/nrvo_simple.rs:+2:19: +2:20
+          StorageDead(_3);                 // scope 1 at $DIR/nrvo_simple.rs:+2:19: +2:20
+-         _0 = _2;                         // scope 1 at $DIR/nrvo_simple.rs:+3:5: +3:8
+-         StorageDead(_2);                 // scope 0 at $DIR/nrvo_simple.rs:+4:1: +4:2
+          return;                          // scope 0 at $DIR/nrvo_simple.rs:+4:2: +4:2
       }
   }
   
diff --git a/src/test/mir-opt/nrvo-simple.rs b/src/test/mir-opt/nrvo_simple.rs
similarity index 100%
rename from src/test/mir-opt/nrvo-simple.rs
rename to src/test/mir-opt/nrvo_simple.rs
diff --git a/src/test/mir-opt/packed_struct_drop_aligned.main.SimplifyCfg-elaborate-drops.after.mir b/src/test/mir-opt/packed_struct_drop_aligned.main.SimplifyCfg-elaborate-drops.after.mir
index f9ed1036f0060..e522534867d50 100644
--- a/src/test/mir-opt/packed_struct_drop_aligned.main.SimplifyCfg-elaborate-drops.after.mir
+++ b/src/test/mir-opt/packed_struct_drop_aligned.main.SimplifyCfg-elaborate-drops.after.mir
@@ -1,60 +1,60 @@
 // MIR for `main` after SimplifyCfg-elaborate-drops
 
 fn main() -> () {
-    let mut _0: ();                      // return place in scope 0 at $DIR/packed-struct-drop-aligned.rs:+0:11: +0:11
-    let mut _1: Packed;                  // in scope 0 at $DIR/packed-struct-drop-aligned.rs:+1:9: +1:14
-    let mut _2: Aligned;                 // in scope 0 at $DIR/packed-struct-drop-aligned.rs:+1:24: +1:42
-    let mut _3: Droppy;                  // in scope 0 at $DIR/packed-struct-drop-aligned.rs:+1:32: +1:41
-    let mut _4: Aligned;                 // in scope 0 at $DIR/packed-struct-drop-aligned.rs:+2:11: +2:29
-    let mut _5: Droppy;                  // in scope 0 at $DIR/packed-struct-drop-aligned.rs:+2:19: +2:28
-    let mut _6: Aligned;                 // in scope 0 at $DIR/packed-struct-drop-aligned.rs:+2:5: +2:8
+    let mut _0: ();                      // return place in scope 0 at $DIR/packed_struct_drop_aligned.rs:+0:11: +0:11
+    let mut _1: Packed;                  // in scope 0 at $DIR/packed_struct_drop_aligned.rs:+1:9: +1:14
+    let mut _2: Aligned;                 // in scope 0 at $DIR/packed_struct_drop_aligned.rs:+1:24: +1:42
+    let mut _3: Droppy;                  // in scope 0 at $DIR/packed_struct_drop_aligned.rs:+1:32: +1:41
+    let mut _4: Aligned;                 // in scope 0 at $DIR/packed_struct_drop_aligned.rs:+2:11: +2:29
+    let mut _5: Droppy;                  // in scope 0 at $DIR/packed_struct_drop_aligned.rs:+2:19: +2:28
+    let mut _6: Aligned;                 // in scope 0 at $DIR/packed_struct_drop_aligned.rs:+2:5: +2:8
     scope 1 {
-        debug x => _1;                   // in scope 1 at $DIR/packed-struct-drop-aligned.rs:+1:9: +1:14
+        debug x => _1;                   // in scope 1 at $DIR/packed_struct_drop_aligned.rs:+1:9: +1:14
     }
 
     bb0: {
-        StorageLive(_1);                 // scope 0 at $DIR/packed-struct-drop-aligned.rs:+1:9: +1:14
-        StorageLive(_2);                 // scope 0 at $DIR/packed-struct-drop-aligned.rs:+1:24: +1:42
-        StorageLive(_3);                 // scope 0 at $DIR/packed-struct-drop-aligned.rs:+1:32: +1:41
-        Deinit(_3);                      // scope 0 at $DIR/packed-struct-drop-aligned.rs:+1:32: +1:41
-        (_3.0: usize) = const 0_usize;   // scope 0 at $DIR/packed-struct-drop-aligned.rs:+1:32: +1:41
-        Deinit(_2);                      // scope 0 at $DIR/packed-struct-drop-aligned.rs:+1:24: +1:42
-        (_2.0: Droppy) = move _3;        // scope 0 at $DIR/packed-struct-drop-aligned.rs:+1:24: +1:42
-        StorageDead(_3);                 // scope 0 at $DIR/packed-struct-drop-aligned.rs:+1:41: +1:42
-        Deinit(_1);                      // scope 0 at $DIR/packed-struct-drop-aligned.rs:+1:17: +1:43
-        (_1.0: Aligned) = move _2;       // scope 0 at $DIR/packed-struct-drop-aligned.rs:+1:17: +1:43
-        StorageDead(_2);                 // scope 0 at $DIR/packed-struct-drop-aligned.rs:+1:42: +1:43
-        StorageLive(_4);                 // scope 1 at $DIR/packed-struct-drop-aligned.rs:+2:11: +2:29
-        StorageLive(_5);                 // scope 1 at $DIR/packed-struct-drop-aligned.rs:+2:19: +2:28
-        Deinit(_5);                      // scope 1 at $DIR/packed-struct-drop-aligned.rs:+2:19: +2:28
-        (_5.0: usize) = const 0_usize;   // scope 1 at $DIR/packed-struct-drop-aligned.rs:+2:19: +2:28
-        Deinit(_4);                      // scope 1 at $DIR/packed-struct-drop-aligned.rs:+2:11: +2:29
-        (_4.0: Droppy) = move _5;        // scope 1 at $DIR/packed-struct-drop-aligned.rs:+2:11: +2:29
-        StorageDead(_5);                 // scope 1 at $DIR/packed-struct-drop-aligned.rs:+2:28: +2:29
-        StorageLive(_6);                 // scope 1 at $DIR/packed-struct-drop-aligned.rs:+2:5: +2:8
-        _6 = move (_1.0: Aligned);       // scope 1 at $DIR/packed-struct-drop-aligned.rs:+2:5: +2:8
-        drop(_6) -> [return: bb4, unwind: bb3]; // scope 1 at $DIR/packed-struct-drop-aligned.rs:+2:5: +2:8
+        StorageLive(_1);                 // scope 0 at $DIR/packed_struct_drop_aligned.rs:+1:9: +1:14
+        StorageLive(_2);                 // scope 0 at $DIR/packed_struct_drop_aligned.rs:+1:24: +1:42
+        StorageLive(_3);                 // scope 0 at $DIR/packed_struct_drop_aligned.rs:+1:32: +1:41
+        Deinit(_3);                      // scope 0 at $DIR/packed_struct_drop_aligned.rs:+1:32: +1:41
+        (_3.0: usize) = const 0_usize;   // scope 0 at $DIR/packed_struct_drop_aligned.rs:+1:32: +1:41
+        Deinit(_2);                      // scope 0 at $DIR/packed_struct_drop_aligned.rs:+1:24: +1:42
+        (_2.0: Droppy) = move _3;        // scope 0 at $DIR/packed_struct_drop_aligned.rs:+1:24: +1:42
+        StorageDead(_3);                 // scope 0 at $DIR/packed_struct_drop_aligned.rs:+1:41: +1:42
+        Deinit(_1);                      // scope 0 at $DIR/packed_struct_drop_aligned.rs:+1:17: +1:43
+        (_1.0: Aligned) = move _2;       // scope 0 at $DIR/packed_struct_drop_aligned.rs:+1:17: +1:43
+        StorageDead(_2);                 // scope 0 at $DIR/packed_struct_drop_aligned.rs:+1:42: +1:43
+        StorageLive(_4);                 // scope 1 at $DIR/packed_struct_drop_aligned.rs:+2:11: +2:29
+        StorageLive(_5);                 // scope 1 at $DIR/packed_struct_drop_aligned.rs:+2:19: +2:28
+        Deinit(_5);                      // scope 1 at $DIR/packed_struct_drop_aligned.rs:+2:19: +2:28
+        (_5.0: usize) = const 0_usize;   // scope 1 at $DIR/packed_struct_drop_aligned.rs:+2:19: +2:28
+        Deinit(_4);                      // scope 1 at $DIR/packed_struct_drop_aligned.rs:+2:11: +2:29
+        (_4.0: Droppy) = move _5;        // scope 1 at $DIR/packed_struct_drop_aligned.rs:+2:11: +2:29
+        StorageDead(_5);                 // scope 1 at $DIR/packed_struct_drop_aligned.rs:+2:28: +2:29
+        StorageLive(_6);                 // scope 1 at $DIR/packed_struct_drop_aligned.rs:+2:5: +2:8
+        _6 = move (_1.0: Aligned);       // scope 1 at $DIR/packed_struct_drop_aligned.rs:+2:5: +2:8
+        drop(_6) -> [return: bb4, unwind: bb3]; // scope 1 at $DIR/packed_struct_drop_aligned.rs:+2:5: +2:8
     }
 
     bb1: {
-        StorageDead(_1);                 // scope 0 at $DIR/packed-struct-drop-aligned.rs:+3:1: +3:2
-        return;                          // scope 0 at $DIR/packed-struct-drop-aligned.rs:+3:2: +3:2
+        StorageDead(_1);                 // scope 0 at $DIR/packed_struct_drop_aligned.rs:+3:1: +3:2
+        return;                          // scope 0 at $DIR/packed_struct_drop_aligned.rs:+3:2: +3:2
     }
 
     bb2 (cleanup): {
-        resume;                          // scope 0 at $DIR/packed-struct-drop-aligned.rs:+0:1: +3:2
+        resume;                          // scope 0 at $DIR/packed_struct_drop_aligned.rs:+0:1: +3:2
     }
 
     bb3 (cleanup): {
-        (_1.0: Aligned) = move _4;       // scope 1 at $DIR/packed-struct-drop-aligned.rs:+2:5: +2:8
-        drop(_1) -> bb2;                 // scope 0 at $DIR/packed-struct-drop-aligned.rs:+3:1: +3:2
+        (_1.0: Aligned) = move _4;       // scope 1 at $DIR/packed_struct_drop_aligned.rs:+2:5: +2:8
+        drop(_1) -> bb2;                 // scope 0 at $DIR/packed_struct_drop_aligned.rs:+3:1: +3:2
     }
 
     bb4: {
-        StorageDead(_6);                 // scope 1 at $DIR/packed-struct-drop-aligned.rs:+2:5: +2:8
-        (_1.0: Aligned) = move _4;       // scope 1 at $DIR/packed-struct-drop-aligned.rs:+2:5: +2:8
-        StorageDead(_4);                 // scope 1 at $DIR/packed-struct-drop-aligned.rs:+2:28: +2:29
-        _0 = const ();                   // scope 0 at $DIR/packed-struct-drop-aligned.rs:+0:11: +3:2
-        drop(_1) -> [return: bb1, unwind: bb2]; // scope 0 at $DIR/packed-struct-drop-aligned.rs:+3:1: +3:2
+        StorageDead(_6);                 // scope 1 at $DIR/packed_struct_drop_aligned.rs:+2:5: +2:8
+        (_1.0: Aligned) = move _4;       // scope 1 at $DIR/packed_struct_drop_aligned.rs:+2:5: +2:8
+        StorageDead(_4);                 // scope 1 at $DIR/packed_struct_drop_aligned.rs:+2:28: +2:29
+        _0 = const ();                   // scope 0 at $DIR/packed_struct_drop_aligned.rs:+0:11: +3:2
+        drop(_1) -> [return: bb1, unwind: bb2]; // scope 0 at $DIR/packed_struct_drop_aligned.rs:+3:1: +3:2
     }
 }
diff --git a/src/test/mir-opt/packed-struct-drop-aligned.rs b/src/test/mir-opt/packed_struct_drop_aligned.rs
similarity index 100%
rename from src/test/mir-opt/packed-struct-drop-aligned.rs
rename to src/test/mir-opt/packed_struct_drop_aligned.rs
diff --git a/src/test/mir-opt/remove_never_const.no_codegen.PreCodegen.after.mir b/src/test/mir-opt/remove_never_const.no_codegen.PreCodegen.after.mir
index 76bdd23be1684..8eb0e9c8f483f 100644
--- a/src/test/mir-opt/remove_never_const.no_codegen.PreCodegen.after.mir
+++ b/src/test/mir-opt/remove_never_const.no_codegen.PreCodegen.after.mir
@@ -1,11 +1,11 @@
 // MIR for `no_codegen` after PreCodegen
 
 fn no_codegen() -> () {
-    let mut _0: ();                      // return place in scope 0 at $DIR/remove-never-const.rs:+0:20: +0:20
+    let mut _0: ();                      // return place in scope 0 at $DIR/remove_never_const.rs:+0:20: +0:20
     scope 1 {
     }
 
     bb0: {
-        unreachable;                     // scope 0 at $DIR/remove-never-const.rs:+1:13: +1:33
+        unreachable;                     // scope 0 at $DIR/remove_never_const.rs:+1:13: +1:33
     }
 }
diff --git a/src/test/mir-opt/remove-never-const.rs b/src/test/mir-opt/remove_never_const.rs
similarity index 100%
rename from src/test/mir-opt/remove-never-const.rs
rename to src/test/mir-opt/remove_never_const.rs
diff --git a/src/test/mir-opt/simplify-arm.rs b/src/test/mir-opt/simplify_arm.rs
similarity index 100%
rename from src/test/mir-opt/simplify-arm.rs
rename to src/test/mir-opt/simplify_arm.rs
diff --git a/src/test/mir-opt/simplify-arm-identity.rs b/src/test/mir-opt/simplify_arm_identity.rs
similarity index 100%
rename from src/test/mir-opt/simplify-arm-identity.rs
rename to src/test/mir-opt/simplify_arm_identity.rs
diff --git a/src/test/mir-opt/simplify_locals.c.SimplifyLocals.diff b/src/test/mir-opt/simplify_locals.c.SimplifyLocals.diff
index 5d7517e4eb43c..1a5143aa0fa03 100644
--- a/src/test/mir-opt/simplify_locals.c.SimplifyLocals.diff
+++ b/src/test/mir-opt/simplify_locals.c.SimplifyLocals.diff
@@ -2,32 +2,32 @@
 + // MIR for `c` after SimplifyLocals
   
   fn c() -> () {
-      let mut _0: ();                      // return place in scope 0 at $DIR/simplify-locals.rs:+0:8: +0:8
-      let _1: [u8; 10];                    // in scope 0 at $DIR/simplify-locals.rs:+1:9: +1:14
--     let mut _2: &[u8];                   // in scope 0 at $DIR/simplify-locals.rs:+3:20: +3:26
--     let mut _3: &[u8; 10];               // in scope 0 at $DIR/simplify-locals.rs:+3:20: +3:26
--     let _4: &[u8; 10];                   // in scope 0 at $DIR/simplify-locals.rs:+3:20: +3:26
+      let mut _0: ();                      // return place in scope 0 at $DIR/simplify_locals.rs:+0:8: +0:8
+      let _1: [u8; 10];                    // in scope 0 at $DIR/simplify_locals.rs:+1:9: +1:14
+-     let mut _2: &[u8];                   // in scope 0 at $DIR/simplify_locals.rs:+3:20: +3:26
+-     let mut _3: &[u8; 10];               // in scope 0 at $DIR/simplify_locals.rs:+3:20: +3:26
+-     let _4: &[u8; 10];                   // in scope 0 at $DIR/simplify_locals.rs:+3:20: +3:26
       scope 1 {
-          debug bytes => _1;               // in scope 1 at $DIR/simplify-locals.rs:+1:9: +1:14
+          debug bytes => _1;               // in scope 1 at $DIR/simplify_locals.rs:+1:9: +1:14
           scope 2 {
           }
       }
   
       bb0: {
-          StorageLive(_1);                 // scope 0 at $DIR/simplify-locals.rs:+1:9: +1:14
-          _1 = [const 0_u8; 10];           // scope 0 at $DIR/simplify-locals.rs:+1:17: +1:26
--         StorageLive(_2);                 // scope 1 at $DIR/simplify-locals.rs:+3:20: +3:26
--         StorageLive(_3);                 // scope 1 at $DIR/simplify-locals.rs:+3:20: +3:26
--         StorageLive(_4);                 // scope 1 at $DIR/simplify-locals.rs:+3:20: +3:26
--         _4 = &_1;                        // scope 1 at $DIR/simplify-locals.rs:+3:20: +3:26
--         _3 = &(*_4);                     // scope 1 at $DIR/simplify-locals.rs:+3:20: +3:26
--         _2 = move _3 as &[u8] (Pointer(Unsize)); // scope 1 at $DIR/simplify-locals.rs:+3:20: +3:26
--         StorageDead(_3);                 // scope 1 at $DIR/simplify-locals.rs:+3:25: +3:26
--         StorageDead(_4);                 // scope 1 at $DIR/simplify-locals.rs:+3:26: +3:27
--         StorageDead(_2);                 // scope 1 at $DIR/simplify-locals.rs:+3:26: +3:27
-          _0 = const ();                   // scope 0 at $DIR/simplify-locals.rs:+0:8: +4:2
-          StorageDead(_1);                 // scope 0 at $DIR/simplify-locals.rs:+4:1: +4:2
-          return;                          // scope 0 at $DIR/simplify-locals.rs:+4:2: +4:2
+          StorageLive(_1);                 // scope 0 at $DIR/simplify_locals.rs:+1:9: +1:14
+          _1 = [const 0_u8; 10];           // scope 0 at $DIR/simplify_locals.rs:+1:17: +1:26
+-         StorageLive(_2);                 // scope 1 at $DIR/simplify_locals.rs:+3:20: +3:26
+-         StorageLive(_3);                 // scope 1 at $DIR/simplify_locals.rs:+3:20: +3:26
+-         StorageLive(_4);                 // scope 1 at $DIR/simplify_locals.rs:+3:20: +3:26
+-         _4 = &_1;                        // scope 1 at $DIR/simplify_locals.rs:+3:20: +3:26
+-         _3 = &(*_4);                     // scope 1 at $DIR/simplify_locals.rs:+3:20: +3:26
+-         _2 = move _3 as &[u8] (Pointer(Unsize)); // scope 1 at $DIR/simplify_locals.rs:+3:20: +3:26
+-         StorageDead(_3);                 // scope 1 at $DIR/simplify_locals.rs:+3:25: +3:26
+-         StorageDead(_4);                 // scope 1 at $DIR/simplify_locals.rs:+3:26: +3:27
+-         StorageDead(_2);                 // scope 1 at $DIR/simplify_locals.rs:+3:26: +3:27
+          _0 = const ();                   // scope 0 at $DIR/simplify_locals.rs:+0:8: +4:2
+          StorageDead(_1);                 // scope 0 at $DIR/simplify_locals.rs:+4:1: +4:2
+          return;                          // scope 0 at $DIR/simplify_locals.rs:+4:2: +4:2
       }
   }
   
diff --git a/src/test/mir-opt/simplify_locals.d1.SimplifyLocals.diff b/src/test/mir-opt/simplify_locals.d1.SimplifyLocals.diff
index a9ea8869a9698..6426bf926a43d 100644
--- a/src/test/mir-opt/simplify_locals.d1.SimplifyLocals.diff
+++ b/src/test/mir-opt/simplify_locals.d1.SimplifyLocals.diff
@@ -2,18 +2,18 @@
 + // MIR for `d1` after SimplifyLocals
   
   fn d1() -> () {
-      let mut _0: ();                      // return place in scope 0 at $DIR/simplify-locals.rs:+0:9: +0:9
--     let mut _1: E;                       // in scope 0 at $DIR/simplify-locals.rs:+2:13: +2:17
+      let mut _0: ();                      // return place in scope 0 at $DIR/simplify_locals.rs:+0:9: +0:9
+-     let mut _1: E;                       // in scope 0 at $DIR/simplify_locals.rs:+2:13: +2:17
       scope 1 {
       }
   
       bb0: {
--         StorageLive(_1);                 // scope 0 at $DIR/simplify-locals.rs:+2:13: +2:17
--         Deinit(_1);                      // scope 0 at $DIR/simplify-locals.rs:+2:13: +2:17
--         discriminant(_1) = 0;            // scope 0 at $DIR/simplify-locals.rs:+2:13: +2:17
--         StorageDead(_1);                 // scope 0 at $DIR/simplify-locals.rs:+2:17: +2:18
-          _0 = const ();                   // scope 0 at $DIR/simplify-locals.rs:+0:9: +3:2
-          return;                          // scope 0 at $DIR/simplify-locals.rs:+3:2: +3:2
+-         StorageLive(_1);                 // scope 0 at $DIR/simplify_locals.rs:+2:13: +2:17
+-         Deinit(_1);                      // scope 0 at $DIR/simplify_locals.rs:+2:13: +2:17
+-         discriminant(_1) = 0;            // scope 0 at $DIR/simplify_locals.rs:+2:13: +2:17
+-         StorageDead(_1);                 // scope 0 at $DIR/simplify_locals.rs:+2:17: +2:18
+          _0 = const ();                   // scope 0 at $DIR/simplify_locals.rs:+0:9: +3:2
+          return;                          // scope 0 at $DIR/simplify_locals.rs:+3:2: +3:2
       }
   }
   
diff --git a/src/test/mir-opt/simplify_locals.d2.SimplifyLocals.diff b/src/test/mir-opt/simplify_locals.d2.SimplifyLocals.diff
index 6a89e45843b9b..db5ab182d6f30 100644
--- a/src/test/mir-opt/simplify_locals.d2.SimplifyLocals.diff
+++ b/src/test/mir-opt/simplify_locals.d2.SimplifyLocals.diff
@@ -2,28 +2,28 @@
 + // MIR for `d2` after SimplifyLocals
   
   fn d2() -> () {
-      let mut _0: ();                      // return place in scope 0 at $DIR/simplify-locals.rs:+0:9: +0:9
--     let mut _1: E;                       // in scope 0 at $DIR/simplify-locals.rs:+2:22: +2:26
--     let mut _2: (i32, E);                // in scope 0 at $DIR/simplify-locals.rs:+2:5: +2:17
--     let mut _3: E;                       // in scope 0 at $DIR/simplify-locals.rs:+2:11: +2:15
+      let mut _0: ();                      // return place in scope 0 at $DIR/simplify_locals.rs:+0:9: +0:9
+-     let mut _1: E;                       // in scope 0 at $DIR/simplify_locals.rs:+2:22: +2:26
+-     let mut _2: (i32, E);                // in scope 0 at $DIR/simplify_locals.rs:+2:5: +2:17
+-     let mut _3: E;                       // in scope 0 at $DIR/simplify_locals.rs:+2:11: +2:15
   
       bb0: {
--         StorageLive(_1);                 // scope 0 at $DIR/simplify-locals.rs:+2:22: +2:26
--         Deinit(_1);                      // scope 0 at $DIR/simplify-locals.rs:+2:22: +2:26
--         discriminant(_1) = 1;            // scope 0 at $DIR/simplify-locals.rs:+2:22: +2:26
--         StorageLive(_2);                 // scope 0 at $DIR/simplify-locals.rs:+2:5: +2:17
--         StorageLive(_3);                 // scope 0 at $DIR/simplify-locals.rs:+2:11: +2:15
--         Deinit(_3);                      // scope 0 at $DIR/simplify-locals.rs:+2:11: +2:15
--         discriminant(_3) = 0;            // scope 0 at $DIR/simplify-locals.rs:+2:11: +2:15
--         Deinit(_2);                      // scope 0 at $DIR/simplify-locals.rs:+2:6: +2:16
--         (_2.0: i32) = const 10_i32;      // scope 0 at $DIR/simplify-locals.rs:+2:6: +2:16
--         (_2.1: E) = move _3;             // scope 0 at $DIR/simplify-locals.rs:+2:6: +2:16
--         StorageDead(_3);                 // scope 0 at $DIR/simplify-locals.rs:+2:15: +2:16
--         (_2.1: E) = move _1;             // scope 0 at $DIR/simplify-locals.rs:+2:5: +2:26
--         StorageDead(_1);                 // scope 0 at $DIR/simplify-locals.rs:+2:25: +2:26
--         StorageDead(_2);                 // scope 0 at $DIR/simplify-locals.rs:+2:26: +2:27
-          _0 = const ();                   // scope 0 at $DIR/simplify-locals.rs:+0:9: +3:2
-          return;                          // scope 0 at $DIR/simplify-locals.rs:+3:2: +3:2
+-         StorageLive(_1);                 // scope 0 at $DIR/simplify_locals.rs:+2:22: +2:26
+-         Deinit(_1);                      // scope 0 at $DIR/simplify_locals.rs:+2:22: +2:26
+-         discriminant(_1) = 1;            // scope 0 at $DIR/simplify_locals.rs:+2:22: +2:26
+-         StorageLive(_2);                 // scope 0 at $DIR/simplify_locals.rs:+2:5: +2:17
+-         StorageLive(_3);                 // scope 0 at $DIR/simplify_locals.rs:+2:11: +2:15
+-         Deinit(_3);                      // scope 0 at $DIR/simplify_locals.rs:+2:11: +2:15
+-         discriminant(_3) = 0;            // scope 0 at $DIR/simplify_locals.rs:+2:11: +2:15
+-         Deinit(_2);                      // scope 0 at $DIR/simplify_locals.rs:+2:6: +2:16
+-         (_2.0: i32) = const 10_i32;      // scope 0 at $DIR/simplify_locals.rs:+2:6: +2:16
+-         (_2.1: E) = move _3;             // scope 0 at $DIR/simplify_locals.rs:+2:6: +2:16
+-         StorageDead(_3);                 // scope 0 at $DIR/simplify_locals.rs:+2:15: +2:16
+-         (_2.1: E) = move _1;             // scope 0 at $DIR/simplify_locals.rs:+2:5: +2:26
+-         StorageDead(_1);                 // scope 0 at $DIR/simplify_locals.rs:+2:25: +2:26
+-         StorageDead(_2);                 // scope 0 at $DIR/simplify_locals.rs:+2:26: +2:27
+          _0 = const ();                   // scope 0 at $DIR/simplify_locals.rs:+0:9: +3:2
+          return;                          // scope 0 at $DIR/simplify_locals.rs:+3:2: +3:2
       }
   }
   
diff --git a/src/test/mir-opt/simplify_locals.expose_addr.SimplifyLocals.diff b/src/test/mir-opt/simplify_locals.expose_addr.SimplifyLocals.diff
index 204a1bffc81ab..c707b0da07e06 100644
--- a/src/test/mir-opt/simplify_locals.expose_addr.SimplifyLocals.diff
+++ b/src/test/mir-opt/simplify_locals.expose_addr.SimplifyLocals.diff
@@ -2,20 +2,20 @@
 + // MIR for `expose_addr` after SimplifyLocals
   
   fn expose_addr(_1: *const usize) -> () {
-      debug p => _1;                       // in scope 0 at $DIR/simplify-locals.rs:+0:16: +0:17
-      let mut _0: ();                      // return place in scope 0 at $DIR/simplify-locals.rs:+0:33: +0:33
-      let _2: usize;                       // in scope 0 at $DIR/simplify-locals.rs:+2:5: +2:15
-      let mut _3: *const usize;            // in scope 0 at $DIR/simplify-locals.rs:+2:5: +2:6
+      debug p => _1;                       // in scope 0 at $DIR/simplify_locals.rs:+0:16: +0:17
+      let mut _0: ();                      // return place in scope 0 at $DIR/simplify_locals.rs:+0:33: +0:33
+      let _2: usize;                       // in scope 0 at $DIR/simplify_locals.rs:+2:5: +2:15
+      let mut _3: *const usize;            // in scope 0 at $DIR/simplify_locals.rs:+2:5: +2:6
   
       bb0: {
-          StorageLive(_2);                 // scope 0 at $DIR/simplify-locals.rs:+2:5: +2:15
-          StorageLive(_3);                 // scope 0 at $DIR/simplify-locals.rs:+2:5: +2:6
-          _3 = _1;                         // scope 0 at $DIR/simplify-locals.rs:+2:5: +2:6
-          _2 = move _3 as usize (PointerExposeAddress); // scope 0 at $DIR/simplify-locals.rs:+2:5: +2:15
-          StorageDead(_3);                 // scope 0 at $DIR/simplify-locals.rs:+2:14: +2:15
-          StorageDead(_2);                 // scope 0 at $DIR/simplify-locals.rs:+2:15: +2:16
-          _0 = const ();                   // scope 0 at $DIR/simplify-locals.rs:+0:33: +3:2
-          return;                          // scope 0 at $DIR/simplify-locals.rs:+3:2: +3:2
+          StorageLive(_2);                 // scope 0 at $DIR/simplify_locals.rs:+2:5: +2:15
+          StorageLive(_3);                 // scope 0 at $DIR/simplify_locals.rs:+2:5: +2:6
+          _3 = _1;                         // scope 0 at $DIR/simplify_locals.rs:+2:5: +2:6
+          _2 = move _3 as usize (PointerExposeAddress); // scope 0 at $DIR/simplify_locals.rs:+2:5: +2:15
+          StorageDead(_3);                 // scope 0 at $DIR/simplify_locals.rs:+2:14: +2:15
+          StorageDead(_2);                 // scope 0 at $DIR/simplify_locals.rs:+2:15: +2:16
+          _0 = const ();                   // scope 0 at $DIR/simplify_locals.rs:+0:33: +3:2
+          return;                          // scope 0 at $DIR/simplify_locals.rs:+3:2: +3:2
       }
   }
   
diff --git a/src/test/mir-opt/simplify_locals.r.SimplifyLocals.diff b/src/test/mir-opt/simplify_locals.r.SimplifyLocals.diff
index 329e2a65a0d0f..ff6eb2cff5e94 100644
--- a/src/test/mir-opt/simplify_locals.r.SimplifyLocals.diff
+++ b/src/test/mir-opt/simplify_locals.r.SimplifyLocals.diff
@@ -2,12 +2,12 @@
 + // MIR for `r` after SimplifyLocals
   
   fn r() -> () {
-      let mut _0: ();                      // return place in scope 0 at $DIR/simplify-locals.rs:+0:8: +0:8
-      let mut _1: i32;                     // in scope 0 at $DIR/simplify-locals.rs:+1:9: +1:14
--     let mut _2: &i32;                    // in scope 0 at $DIR/simplify-locals.rs:+3:13: +3:15
--     let mut _3: &mut i32;                // in scope 0 at $DIR/simplify-locals.rs:+4:13: +4:19
+      let mut _0: ();                      // return place in scope 0 at $DIR/simplify_locals.rs:+0:8: +0:8
+      let mut _1: i32;                     // in scope 0 at $DIR/simplify_locals.rs:+1:9: +1:14
+-     let mut _2: &i32;                    // in scope 0 at $DIR/simplify_locals.rs:+3:13: +3:15
+-     let mut _3: &mut i32;                // in scope 0 at $DIR/simplify_locals.rs:+4:13: +4:19
       scope 1 {
-          debug a => _1;                   // in scope 1 at $DIR/simplify-locals.rs:+1:9: +1:14
+          debug a => _1;                   // in scope 1 at $DIR/simplify_locals.rs:+1:9: +1:14
           scope 2 {
               scope 3 {
               }
@@ -15,17 +15,17 @@
       }
   
       bb0: {
-          StorageLive(_1);                 // scope 0 at $DIR/simplify-locals.rs:+1:9: +1:14
-          _1 = const 1_i32;                // scope 0 at $DIR/simplify-locals.rs:+1:17: +1:18
--         StorageLive(_2);                 // scope 1 at $DIR/simplify-locals.rs:+3:13: +3:15
--         _2 = &_1;                        // scope 1 at $DIR/simplify-locals.rs:+3:13: +3:15
--         StorageDead(_2);                 // scope 1 at $DIR/simplify-locals.rs:+3:15: +3:16
--         StorageLive(_3);                 // scope 2 at $DIR/simplify-locals.rs:+4:13: +4:19
--         _3 = &mut _1;                    // scope 2 at $DIR/simplify-locals.rs:+4:13: +4:19
--         StorageDead(_3);                 // scope 2 at $DIR/simplify-locals.rs:+4:19: +4:20
-          _0 = const ();                   // scope 0 at $DIR/simplify-locals.rs:+0:8: +5:2
-          StorageDead(_1);                 // scope 0 at $DIR/simplify-locals.rs:+5:1: +5:2
-          return;                          // scope 0 at $DIR/simplify-locals.rs:+5:2: +5:2
+          StorageLive(_1);                 // scope 0 at $DIR/simplify_locals.rs:+1:9: +1:14
+          _1 = const 1_i32;                // scope 0 at $DIR/simplify_locals.rs:+1:17: +1:18
+-         StorageLive(_2);                 // scope 1 at $DIR/simplify_locals.rs:+3:13: +3:15
+-         _2 = &_1;                        // scope 1 at $DIR/simplify_locals.rs:+3:13: +3:15
+-         StorageDead(_2);                 // scope 1 at $DIR/simplify_locals.rs:+3:15: +3:16
+-         StorageLive(_3);                 // scope 2 at $DIR/simplify_locals.rs:+4:13: +4:19
+-         _3 = &mut _1;                    // scope 2 at $DIR/simplify_locals.rs:+4:13: +4:19
+-         StorageDead(_3);                 // scope 2 at $DIR/simplify_locals.rs:+4:19: +4:20
+          _0 = const ();                   // scope 0 at $DIR/simplify_locals.rs:+0:8: +5:2
+          StorageDead(_1);                 // scope 0 at $DIR/simplify_locals.rs:+5:1: +5:2
+          return;                          // scope 0 at $DIR/simplify_locals.rs:+5:2: +5:2
       }
   }
   
diff --git a/src/test/mir-opt/simplify-locals.rs b/src/test/mir-opt/simplify_locals.rs
similarity index 100%
rename from src/test/mir-opt/simplify-locals.rs
rename to src/test/mir-opt/simplify_locals.rs
diff --git a/src/test/mir-opt/simplify_locals.t1.SimplifyLocals.diff b/src/test/mir-opt/simplify_locals.t1.SimplifyLocals.diff
index b31156ad6977e..49db77479638d 100644
--- a/src/test/mir-opt/simplify_locals.t1.SimplifyLocals.diff
+++ b/src/test/mir-opt/simplify_locals.t1.SimplifyLocals.diff
@@ -2,21 +2,21 @@
 + // MIR for `t1` after SimplifyLocals
   
   fn t1() -> () {
-      let mut _0: ();                      // return place in scope 0 at $DIR/simplify-locals.rs:+0:9: +0:9
--     let _1: u32;                         // in scope 0 at $DIR/simplify-locals.rs:+2:14: +2:15
--     let mut _2: *mut u32;                // in scope 0 at $DIR/simplify-locals.rs:+2:14: +2:15
+      let mut _0: ();                      // return place in scope 0 at $DIR/simplify_locals.rs:+0:9: +0:9
+-     let _1: u32;                         // in scope 0 at $DIR/simplify_locals.rs:+2:14: +2:15
+-     let mut _2: *mut u32;                // in scope 0 at $DIR/simplify_locals.rs:+2:14: +2:15
       scope 1 {
       }
   
       bb0: {
--         StorageLive(_1);                 // scope 0 at $DIR/simplify-locals.rs:+2:5: +2:17
--         StorageLive(_2);                 // scope 1 at $DIR/simplify-locals.rs:+2:14: +2:15
--         _2 = &/*tls*/ mut X;             // scope 1 at $DIR/simplify-locals.rs:+2:14: +2:15
--         _1 = (*_2);                      // scope 1 at $DIR/simplify-locals.rs:+2:14: +2:15
--         StorageDead(_2);                 // scope 0 at $DIR/simplify-locals.rs:+2:17: +2:18
--         StorageDead(_1);                 // scope 0 at $DIR/simplify-locals.rs:+2:17: +2:18
-          _0 = const ();                   // scope 0 at $DIR/simplify-locals.rs:+0:9: +3:2
-          return;                          // scope 0 at $DIR/simplify-locals.rs:+3:2: +3:2
+-         StorageLive(_1);                 // scope 0 at $DIR/simplify_locals.rs:+2:5: +2:17
+-         StorageLive(_2);                 // scope 1 at $DIR/simplify_locals.rs:+2:14: +2:15
+-         _2 = &/*tls*/ mut X;             // scope 1 at $DIR/simplify_locals.rs:+2:14: +2:15
+-         _1 = (*_2);                      // scope 1 at $DIR/simplify_locals.rs:+2:14: +2:15
+-         StorageDead(_2);                 // scope 0 at $DIR/simplify_locals.rs:+2:17: +2:18
+-         StorageDead(_1);                 // scope 0 at $DIR/simplify_locals.rs:+2:17: +2:18
+          _0 = const ();                   // scope 0 at $DIR/simplify_locals.rs:+0:9: +3:2
+          return;                          // scope 0 at $DIR/simplify_locals.rs:+3:2: +3:2
       }
   }
   
diff --git a/src/test/mir-opt/simplify_locals.t2.SimplifyLocals.diff b/src/test/mir-opt/simplify_locals.t2.SimplifyLocals.diff
index 66b6d8d648647..e3f4ae3701b04 100644
--- a/src/test/mir-opt/simplify_locals.t2.SimplifyLocals.diff
+++ b/src/test/mir-opt/simplify_locals.t2.SimplifyLocals.diff
@@ -2,21 +2,21 @@
 + // MIR for `t2` after SimplifyLocals
   
   fn t2() -> () {
-      let mut _0: ();                      // return place in scope 0 at $DIR/simplify-locals.rs:+0:9: +0:9
--     let _1: &mut u32;                    // in scope 0 at $DIR/simplify-locals.rs:+2:14: +2:20
--     let mut _2: *mut u32;                // in scope 0 at $DIR/simplify-locals.rs:+2:19: +2:20
+      let mut _0: ();                      // return place in scope 0 at $DIR/simplify_locals.rs:+0:9: +0:9
+-     let _1: &mut u32;                    // in scope 0 at $DIR/simplify_locals.rs:+2:14: +2:20
+-     let mut _2: *mut u32;                // in scope 0 at $DIR/simplify_locals.rs:+2:19: +2:20
       scope 1 {
       }
   
       bb0: {
--         StorageLive(_1);                 // scope 0 at $DIR/simplify-locals.rs:+2:5: +2:22
--         StorageLive(_2);                 // scope 1 at $DIR/simplify-locals.rs:+2:19: +2:20
--         _2 = &/*tls*/ mut X;             // scope 1 at $DIR/simplify-locals.rs:+2:19: +2:20
--         _1 = &mut (*_2);                 // scope 1 at $DIR/simplify-locals.rs:+2:14: +2:20
--         StorageDead(_2);                 // scope 0 at $DIR/simplify-locals.rs:+2:22: +2:23
--         StorageDead(_1);                 // scope 0 at $DIR/simplify-locals.rs:+2:22: +2:23
-          _0 = const ();                   // scope 0 at $DIR/simplify-locals.rs:+0:9: +3:2
-          return;                          // scope 0 at $DIR/simplify-locals.rs:+3:2: +3:2
+-         StorageLive(_1);                 // scope 0 at $DIR/simplify_locals.rs:+2:5: +2:22
+-         StorageLive(_2);                 // scope 1 at $DIR/simplify_locals.rs:+2:19: +2:20
+-         _2 = &/*tls*/ mut X;             // scope 1 at $DIR/simplify_locals.rs:+2:19: +2:20
+-         _1 = &mut (*_2);                 // scope 1 at $DIR/simplify_locals.rs:+2:14: +2:20
+-         StorageDead(_2);                 // scope 0 at $DIR/simplify_locals.rs:+2:22: +2:23
+-         StorageDead(_1);                 // scope 0 at $DIR/simplify_locals.rs:+2:22: +2:23
+          _0 = const ();                   // scope 0 at $DIR/simplify_locals.rs:+0:9: +3:2
+          return;                          // scope 0 at $DIR/simplify_locals.rs:+3:2: +3:2
       }
   }
   
diff --git a/src/test/mir-opt/simplify_locals.t3.SimplifyLocals.diff b/src/test/mir-opt/simplify_locals.t3.SimplifyLocals.diff
index f6b6b78cdfbeb..f1ce7778e1915 100644
--- a/src/test/mir-opt/simplify_locals.t3.SimplifyLocals.diff
+++ b/src/test/mir-opt/simplify_locals.t3.SimplifyLocals.diff
@@ -2,25 +2,25 @@
 + // MIR for `t3` after SimplifyLocals
   
   fn t3() -> () {
-      let mut _0: ();                      // return place in scope 0 at $DIR/simplify-locals.rs:+0:9: +0:9
--     let _1: u32;                         // in scope 0 at $DIR/simplify-locals.rs:+2:14: +2:21
--     let mut _2: &mut u32;                // in scope 0 at $DIR/simplify-locals.rs:+2:15: +2:21
--     let mut _3: *mut u32;                // in scope 0 at $DIR/simplify-locals.rs:+2:20: +2:21
+      let mut _0: ();                      // return place in scope 0 at $DIR/simplify_locals.rs:+0:9: +0:9
+-     let _1: u32;                         // in scope 0 at $DIR/simplify_locals.rs:+2:14: +2:21
+-     let mut _2: &mut u32;                // in scope 0 at $DIR/simplify_locals.rs:+2:15: +2:21
+-     let mut _3: *mut u32;                // in scope 0 at $DIR/simplify_locals.rs:+2:20: +2:21
       scope 1 {
       }
   
       bb0: {
--         StorageLive(_1);                 // scope 0 at $DIR/simplify-locals.rs:+2:5: +2:23
--         StorageLive(_2);                 // scope 1 at $DIR/simplify-locals.rs:+2:15: +2:21
--         StorageLive(_3);                 // scope 1 at $DIR/simplify-locals.rs:+2:20: +2:21
--         _3 = &/*tls*/ mut X;             // scope 1 at $DIR/simplify-locals.rs:+2:20: +2:21
--         _2 = &mut (*_3);                 // scope 1 at $DIR/simplify-locals.rs:+2:15: +2:21
--         _1 = (*_2);                      // scope 1 at $DIR/simplify-locals.rs:+2:14: +2:21
--         StorageDead(_3);                 // scope 0 at $DIR/simplify-locals.rs:+2:23: +2:24
--         StorageDead(_2);                 // scope 0 at $DIR/simplify-locals.rs:+2:23: +2:24
--         StorageDead(_1);                 // scope 0 at $DIR/simplify-locals.rs:+2:23: +2:24
-          _0 = const ();                   // scope 0 at $DIR/simplify-locals.rs:+0:9: +3:2
-          return;                          // scope 0 at $DIR/simplify-locals.rs:+3:2: +3:2
+-         StorageLive(_1);                 // scope 0 at $DIR/simplify_locals.rs:+2:5: +2:23
+-         StorageLive(_2);                 // scope 1 at $DIR/simplify_locals.rs:+2:15: +2:21
+-         StorageLive(_3);                 // scope 1 at $DIR/simplify_locals.rs:+2:20: +2:21
+-         _3 = &/*tls*/ mut X;             // scope 1 at $DIR/simplify_locals.rs:+2:20: +2:21
+-         _2 = &mut (*_3);                 // scope 1 at $DIR/simplify_locals.rs:+2:15: +2:21
+-         _1 = (*_2);                      // scope 1 at $DIR/simplify_locals.rs:+2:14: +2:21
+-         StorageDead(_3);                 // scope 0 at $DIR/simplify_locals.rs:+2:23: +2:24
+-         StorageDead(_2);                 // scope 0 at $DIR/simplify_locals.rs:+2:23: +2:24
+-         StorageDead(_1);                 // scope 0 at $DIR/simplify_locals.rs:+2:23: +2:24
+          _0 = const ();                   // scope 0 at $DIR/simplify_locals.rs:+0:9: +3:2
+          return;                          // scope 0 at $DIR/simplify_locals.rs:+3:2: +3:2
       }
   }
   
diff --git a/src/test/mir-opt/simplify_locals.t4.SimplifyLocals.diff b/src/test/mir-opt/simplify_locals.t4.SimplifyLocals.diff
index 1c1da29aa678f..71cf9594b9eb2 100644
--- a/src/test/mir-opt/simplify_locals.t4.SimplifyLocals.diff
+++ b/src/test/mir-opt/simplify_locals.t4.SimplifyLocals.diff
@@ -2,21 +2,21 @@
 + // MIR for `t4` after SimplifyLocals
   
   fn t4() -> u32 {
-      let mut _0: u32;                     // return place in scope 0 at $DIR/simplify-locals.rs:+0:12: +0:15
-      let mut _1: u32;                     // in scope 0 at $DIR/simplify-locals.rs:+2:14: +2:15
-      let mut _2: *mut u32;                // in scope 0 at $DIR/simplify-locals.rs:+2:14: +2:15
+      let mut _0: u32;                     // return place in scope 0 at $DIR/simplify_locals.rs:+0:12: +0:15
+      let mut _1: u32;                     // in scope 0 at $DIR/simplify_locals.rs:+2:14: +2:15
+      let mut _2: *mut u32;                // in scope 0 at $DIR/simplify_locals.rs:+2:14: +2:15
       scope 1 {
       }
   
       bb0: {
-          StorageLive(_1);                 // scope 1 at $DIR/simplify-locals.rs:+2:14: +2:15
-          StorageLive(_2);                 // scope 1 at $DIR/simplify-locals.rs:+2:14: +2:15
-          _2 = &/*tls*/ mut X;             // scope 1 at $DIR/simplify-locals.rs:+2:14: +2:15
-          _1 = (*_2);                      // scope 1 at $DIR/simplify-locals.rs:+2:14: +2:15
-          _0 = Add(move _1, const 1_u32);  // scope 1 at $DIR/simplify-locals.rs:+2:14: +2:19
-          StorageDead(_1);                 // scope 1 at $DIR/simplify-locals.rs:+2:18: +2:19
-          StorageDead(_2);                 // scope 0 at $DIR/simplify-locals.rs:+3:1: +3:2
-          return;                          // scope 0 at $DIR/simplify-locals.rs:+3:2: +3:2
+          StorageLive(_1);                 // scope 1 at $DIR/simplify_locals.rs:+2:14: +2:15
+          StorageLive(_2);                 // scope 1 at $DIR/simplify_locals.rs:+2:14: +2:15
+          _2 = &/*tls*/ mut X;             // scope 1 at $DIR/simplify_locals.rs:+2:14: +2:15
+          _1 = (*_2);                      // scope 1 at $DIR/simplify_locals.rs:+2:14: +2:15
+          _0 = Add(move _1, const 1_u32);  // scope 1 at $DIR/simplify_locals.rs:+2:14: +2:19
+          StorageDead(_1);                 // scope 1 at $DIR/simplify_locals.rs:+2:18: +2:19
+          StorageDead(_2);                 // scope 0 at $DIR/simplify_locals.rs:+3:1: +3:2
+          return;                          // scope 0 at $DIR/simplify_locals.rs:+3:2: +3:2
       }
   }
   
diff --git a/src/test/mir-opt/simplify_locals_fixedpoint.foo.SimplifyLocals.diff b/src/test/mir-opt/simplify_locals_fixedpoint.foo.SimplifyLocals.diff
index ac7a47ba58f7b..8feddcef2ceef 100644
--- a/src/test/mir-opt/simplify_locals_fixedpoint.foo.SimplifyLocals.diff
+++ b/src/test/mir-opt/simplify_locals_fixedpoint.foo.SimplifyLocals.diff
@@ -2,61 +2,61 @@
 + // MIR for `foo` after SimplifyLocals
   
   fn foo() -> () {
-      let mut _0: ();                      // return place in scope 0 at $DIR/simplify-locals-fixedpoint.rs:+0:13: +0:13
-      let mut _1: (std::option::Option<u8>, std::option::Option<T>); // in scope 0 at $DIR/simplify-locals-fixedpoint.rs:+1:30: +1:69
-      let mut _2: std::option::Option<u8>; // in scope 0 at $DIR/simplify-locals-fixedpoint.rs:+1:31: +1:49
-      let mut _3: std::option::Option<T>;  // in scope 0 at $DIR/simplify-locals-fixedpoint.rs:+1:51: +1:68
-      let mut _4: isize;                   // in scope 0 at $DIR/simplify-locals-fixedpoint.rs:+1:22: +1:26
-      let mut _5: isize;                   // in scope 0 at $DIR/simplify-locals-fixedpoint.rs:+1:13: +1:20
--     let mut _7: bool;                    // in scope 0 at $DIR/simplify-locals-fixedpoint.rs:+2:12: +2:20
--     let mut _8: u8;                      // in scope 0 at $DIR/simplify-locals-fixedpoint.rs:+2:12: +2:13
+      let mut _0: ();                      // return place in scope 0 at $DIR/simplify_locals_fixedpoint.rs:+0:13: +0:13
+      let mut _1: (std::option::Option<u8>, std::option::Option<T>); // in scope 0 at $DIR/simplify_locals_fixedpoint.rs:+1:30: +1:69
+      let mut _2: std::option::Option<u8>; // in scope 0 at $DIR/simplify_locals_fixedpoint.rs:+1:31: +1:49
+      let mut _3: std::option::Option<T>;  // in scope 0 at $DIR/simplify_locals_fixedpoint.rs:+1:51: +1:68
+      let mut _4: isize;                   // in scope 0 at $DIR/simplify_locals_fixedpoint.rs:+1:22: +1:26
+      let mut _5: isize;                   // in scope 0 at $DIR/simplify_locals_fixedpoint.rs:+1:13: +1:20
+-     let mut _7: bool;                    // in scope 0 at $DIR/simplify_locals_fixedpoint.rs:+2:12: +2:20
+-     let mut _8: u8;                      // in scope 0 at $DIR/simplify_locals_fixedpoint.rs:+2:12: +2:13
       scope 1 {
-          debug a => _6;                   // in scope 1 at $DIR/simplify-locals-fixedpoint.rs:+1:18: +1:19
-          let _6: u8;                      // in scope 1 at $DIR/simplify-locals-fixedpoint.rs:+1:18: +1:19
+          debug a => _6;                   // in scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:18: +1:19
+          let _6: u8;                      // in scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:18: +1:19
       }
   
       bb0: {
-          StorageLive(_1);                 // scope 1 at $DIR/simplify-locals-fixedpoint.rs:+1:30: +1:69
-          StorageLive(_2);                 // scope 1 at $DIR/simplify-locals-fixedpoint.rs:+1:31: +1:49
-          Deinit(_2);                      // scope 1 at $DIR/simplify-locals-fixedpoint.rs:+1:31: +1:49
-          discriminant(_2) = 0;            // scope 1 at $DIR/simplify-locals-fixedpoint.rs:+1:31: +1:49
-          StorageLive(_3);                 // scope 1 at $DIR/simplify-locals-fixedpoint.rs:+1:51: +1:68
-          Deinit(_3);                      // scope 1 at $DIR/simplify-locals-fixedpoint.rs:+1:51: +1:68
-          discriminant(_3) = 0;            // scope 1 at $DIR/simplify-locals-fixedpoint.rs:+1:51: +1:68
-          Deinit(_1);                      // scope 1 at $DIR/simplify-locals-fixedpoint.rs:+1:30: +1:69
-          (_1.0: std::option::Option<u8>) = move _2; // scope 1 at $DIR/simplify-locals-fixedpoint.rs:+1:30: +1:69
-          (_1.1: std::option::Option<T>) = move _3; // scope 1 at $DIR/simplify-locals-fixedpoint.rs:+1:30: +1:69
-          StorageDead(_3);                 // scope 1 at $DIR/simplify-locals-fixedpoint.rs:+1:68: +1:69
-          StorageDead(_2);                 // scope 1 at $DIR/simplify-locals-fixedpoint.rs:+1:68: +1:69
-          _5 = discriminant((_1.0: std::option::Option<u8>)); // scope 1 at $DIR/simplify-locals-fixedpoint.rs:+1:12: +1:27
-          switchInt(move _5) -> [1_isize: bb1, otherwise: bb3]; // scope 1 at $DIR/simplify-locals-fixedpoint.rs:+1:12: +1:27
+          StorageLive(_1);                 // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:30: +1:69
+          StorageLive(_2);                 // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:31: +1:49
+          Deinit(_2);                      // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:31: +1:49
+          discriminant(_2) = 0;            // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:31: +1:49
+          StorageLive(_3);                 // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:51: +1:68
+          Deinit(_3);                      // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:51: +1:68
+          discriminant(_3) = 0;            // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:51: +1:68
+          Deinit(_1);                      // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:30: +1:69
+          (_1.0: std::option::Option<u8>) = move _2; // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:30: +1:69
+          (_1.1: std::option::Option<T>) = move _3; // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:30: +1:69
+          StorageDead(_3);                 // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:68: +1:69
+          StorageDead(_2);                 // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:68: +1:69
+          _5 = discriminant((_1.0: std::option::Option<u8>)); // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:12: +1:27
+          switchInt(move _5) -> [1_isize: bb1, otherwise: bb3]; // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:12: +1:27
       }
   
       bb1: {
-          _4 = discriminant((_1.1: std::option::Option<T>)); // scope 1 at $DIR/simplify-locals-fixedpoint.rs:+1:12: +1:27
-          switchInt(move _4) -> [0_isize: bb2, otherwise: bb3]; // scope 1 at $DIR/simplify-locals-fixedpoint.rs:+1:12: +1:27
+          _4 = discriminant((_1.1: std::option::Option<T>)); // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:12: +1:27
+          switchInt(move _4) -> [0_isize: bb2, otherwise: bb3]; // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:12: +1:27
       }
   
       bb2: {
-          StorageLive(_6);                 // scope 1 at $DIR/simplify-locals-fixedpoint.rs:+1:18: +1:19
-          _6 = (((_1.0: std::option::Option<u8>) as Some).0: u8); // scope 1 at $DIR/simplify-locals-fixedpoint.rs:+1:18: +1:19
--         StorageLive(_7);                 // scope 1 at $DIR/simplify-locals-fixedpoint.rs:+2:12: +2:20
--         StorageLive(_8);                 // scope 1 at $DIR/simplify-locals-fixedpoint.rs:+2:12: +2:13
--         _8 = _6;                         // scope 1 at $DIR/simplify-locals-fixedpoint.rs:+2:12: +2:13
--         _7 = Gt(move _8, const 42_u8);   // scope 1 at $DIR/simplify-locals-fixedpoint.rs:+2:12: +2:20
--         StorageDead(_8);                 // scope 1 at $DIR/simplify-locals-fixedpoint.rs:+2:19: +2:20
--         StorageDead(_7);                 // scope 1 at $DIR/simplify-locals-fixedpoint.rs:+4:9: +4:10
-          StorageDead(_6);                 // scope 0 at $DIR/simplify-locals-fixedpoint.rs:+5:5: +5:6
-          goto -> bb3;                     // scope 0 at $DIR/simplify-locals-fixedpoint.rs:+1:5: +5:6
+          StorageLive(_6);                 // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:18: +1:19
+          _6 = (((_1.0: std::option::Option<u8>) as Some).0: u8); // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:18: +1:19
+-         StorageLive(_7);                 // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+2:12: +2:20
+-         StorageLive(_8);                 // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+2:12: +2:13
+-         _8 = _6;                         // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+2:12: +2:13
+-         _7 = Gt(move _8, const 42_u8);   // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+2:12: +2:20
+-         StorageDead(_8);                 // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+2:19: +2:20
+-         StorageDead(_7);                 // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+4:9: +4:10
+          StorageDead(_6);                 // scope 0 at $DIR/simplify_locals_fixedpoint.rs:+5:5: +5:6
+          goto -> bb3;                     // scope 0 at $DIR/simplify_locals_fixedpoint.rs:+1:5: +5:6
       }
   
       bb3: {
-          drop(_1) -> bb4;                 // scope 0 at $DIR/simplify-locals-fixedpoint.rs:+6:1: +6:2
+          drop(_1) -> bb4;                 // scope 0 at $DIR/simplify_locals_fixedpoint.rs:+6:1: +6:2
       }
   
       bb4: {
-          StorageDead(_1);                 // scope 0 at $DIR/simplify-locals-fixedpoint.rs:+6:1: +6:2
-          return;                          // scope 0 at $DIR/simplify-locals-fixedpoint.rs:+6:2: +6:2
+          StorageDead(_1);                 // scope 0 at $DIR/simplify_locals_fixedpoint.rs:+6:1: +6:2
+          return;                          // scope 0 at $DIR/simplify_locals_fixedpoint.rs:+6:2: +6:2
       }
   }
   
diff --git a/src/test/mir-opt/simplify-locals-fixedpoint.rs b/src/test/mir-opt/simplify_locals_fixedpoint.rs
similarity index 100%
rename from src/test/mir-opt/simplify-locals-fixedpoint.rs
rename to src/test/mir-opt/simplify_locals_fixedpoint.rs
diff --git a/src/test/mir-opt/simplify_locals_removes_unused_consts.main.SimplifyLocals.diff b/src/test/mir-opt/simplify_locals_removes_unused_consts.main.SimplifyLocals.diff
index b41527ba02de5..78272272b0704 100644
--- a/src/test/mir-opt/simplify_locals_removes_unused_consts.main.SimplifyLocals.diff
+++ b/src/test/mir-opt/simplify_locals_removes_unused_consts.main.SimplifyLocals.diff
@@ -2,108 +2,108 @@
 + // MIR for `main` after SimplifyLocals
   
   fn main() -> () {
-      let mut _0: ();                      // return place in scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:+0:11: +0:11
--     let mut _1: ((), ());                // in scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:+1:20: +1:28
--     let mut _2: ();                      // in scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:+1:21: +1:23
--     let mut _3: ();                      // in scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:+1:25: +1:27
--     let _4: ();                          // in scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:+2:5: +2:22
--     let mut _5: ((), ());                // in scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:+2:13: +2:21
--     let mut _6: ();                      // in scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:+2:14: +2:16
--     let mut _7: ();                      // in scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:+2:18: +2:20
--     let _8: ();                          // in scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:+4:5: +4:35
--     let mut _9: u8;                      // in scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:+4:12: +4:34
--     let mut _10: u8;                     // in scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:+4:12: +4:30
--     let mut _11: Temp;                   // in scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:+4:12: +4:28
-+     let _1: ();                          // in scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:+2:5: +2:22
-+     let mut _2: ((), ());                // in scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:+2:13: +2:21
-+     let mut _3: ();                      // in scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:+2:14: +2:16
-+     let mut _4: ();                      // in scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:+2:18: +2:20
-+     let _5: ();                          // in scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:+4:5: +4:35
-+     let mut _6: u8;                      // in scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:+4:12: +4:34
-+     let mut _7: u8;                      // in scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:+4:12: +4:30
-+     let mut _8: Temp;                    // in scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:+4:12: +4:28
+      let mut _0: ();                      // return place in scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+0:11: +0:11
+-     let mut _1: ((), ());                // in scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+1:20: +1:28
+-     let mut _2: ();                      // in scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+1:21: +1:23
+-     let mut _3: ();                      // in scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+1:25: +1:27
+-     let _4: ();                          // in scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+2:5: +2:22
+-     let mut _5: ((), ());                // in scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+2:13: +2:21
+-     let mut _6: ();                      // in scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+2:14: +2:16
+-     let mut _7: ();                      // in scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+2:18: +2:20
+-     let _8: ();                          // in scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+4:5: +4:35
+-     let mut _9: u8;                      // in scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+4:12: +4:34
+-     let mut _10: u8;                     // in scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+4:12: +4:30
+-     let mut _11: Temp;                   // in scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+4:12: +4:28
++     let _1: ();                          // in scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+2:5: +2:22
++     let mut _2: ((), ());                // in scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+2:13: +2:21
++     let mut _3: ();                      // in scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+2:14: +2:16
++     let mut _4: ();                      // in scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+2:18: +2:20
++     let _5: ();                          // in scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+4:5: +4:35
++     let mut _6: u8;                      // in scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+4:12: +4:34
++     let mut _7: u8;                      // in scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+4:12: +4:30
++     let mut _8: Temp;                    // in scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+4:12: +4:28
       scope 1 {
       }
   
       bb0: {
--         StorageLive(_1);                 // scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:+1:20: +1:28
--         StorageLive(_2);                 // scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:+1:21: +1:23
--         Deinit(_2);                      // scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:+1:21: +1:23
--         StorageLive(_3);                 // scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:+1:25: +1:27
--         Deinit(_3);                      // scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:+1:25: +1:27
--         Deinit(_1);                      // scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:+1:20: +1:28
--         (_1.0: ()) = move _2;            // scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:+1:20: +1:28
--         (_1.1: ()) = move _3;            // scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:+1:20: +1:28
--         StorageDead(_3);                 // scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:+1:27: +1:28
--         StorageDead(_2);                 // scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:+1:27: +1:28
--         StorageDead(_1);                 // scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:+1:28: +1:29
--         StorageLive(_4);                 // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+2:5: +2:22
--         StorageLive(_5);                 // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+2:13: +2:21
--         StorageLive(_6);                 // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+2:14: +2:16
--         Deinit(_6);                      // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+2:14: +2:16
--         StorageLive(_7);                 // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+2:18: +2:20
--         Deinit(_7);                      // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+2:18: +2:20
--         Deinit(_5);                      // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+2:13: +2:21
--         (_5.0: ()) = move _6;            // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+2:13: +2:21
--         (_5.1: ()) = move _7;            // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+2:13: +2:21
--         StorageDead(_7);                 // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+2:20: +2:21
--         StorageDead(_6);                 // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+2:20: +2:21
--         _4 = use_zst(move _5) -> bb1;    // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+2:5: +2:22
-+         StorageLive(_1);                 // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+2:5: +2:22
-+         StorageLive(_2);                 // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+2:13: +2:21
-+         StorageLive(_3);                 // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+2:14: +2:16
-+         Deinit(_3);                      // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+2:14: +2:16
-+         StorageLive(_4);                 // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+2:18: +2:20
-+         Deinit(_4);                      // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+2:18: +2:20
-+         Deinit(_2);                      // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+2:13: +2:21
-+         (_2.0: ()) = move _3;            // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+2:13: +2:21
-+         (_2.1: ()) = move _4;            // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+2:13: +2:21
-+         StorageDead(_4);                 // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+2:20: +2:21
-+         StorageDead(_3);                 // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+2:20: +2:21
-+         _1 = use_zst(move _2) -> bb1;    // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+2:5: +2:22
+-         StorageLive(_1);                 // scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+1:20: +1:28
+-         StorageLive(_2);                 // scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+1:21: +1:23
+-         Deinit(_2);                      // scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+1:21: +1:23
+-         StorageLive(_3);                 // scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+1:25: +1:27
+-         Deinit(_3);                      // scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+1:25: +1:27
+-         Deinit(_1);                      // scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+1:20: +1:28
+-         (_1.0: ()) = move _2;            // scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+1:20: +1:28
+-         (_1.1: ()) = move _3;            // scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+1:20: +1:28
+-         StorageDead(_3);                 // scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+1:27: +1:28
+-         StorageDead(_2);                 // scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+1:27: +1:28
+-         StorageDead(_1);                 // scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+1:28: +1:29
+-         StorageLive(_4);                 // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:5: +2:22
+-         StorageLive(_5);                 // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:13: +2:21
+-         StorageLive(_6);                 // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:14: +2:16
+-         Deinit(_6);                      // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:14: +2:16
+-         StorageLive(_7);                 // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:18: +2:20
+-         Deinit(_7);                      // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:18: +2:20
+-         Deinit(_5);                      // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:13: +2:21
+-         (_5.0: ()) = move _6;            // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:13: +2:21
+-         (_5.1: ()) = move _7;            // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:13: +2:21
+-         StorageDead(_7);                 // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:20: +2:21
+-         StorageDead(_6);                 // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:20: +2:21
+-         _4 = use_zst(move _5) -> bb1;    // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:5: +2:22
++         StorageLive(_1);                 // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:5: +2:22
++         StorageLive(_2);                 // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:13: +2:21
++         StorageLive(_3);                 // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:14: +2:16
++         Deinit(_3);                      // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:14: +2:16
++         StorageLive(_4);                 // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:18: +2:20
++         Deinit(_4);                      // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:18: +2:20
++         Deinit(_2);                      // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:13: +2:21
++         (_2.0: ()) = move _3;            // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:13: +2:21
++         (_2.1: ()) = move _4;            // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:13: +2:21
++         StorageDead(_4);                 // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:20: +2:21
++         StorageDead(_3);                 // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:20: +2:21
++         _1 = use_zst(move _2) -> bb1;    // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:5: +2:22
                                            // mir::Constant
-                                           // + span: $DIR/simplify-locals-removes-unused-consts.rs:15:5: 15:12
+                                           // + span: $DIR/simplify_locals_removes_unused_consts.rs:15:5: 15:12
                                            // + literal: Const { ty: fn(((), ())) {use_zst}, val: Value(<ZST>) }
       }
   
       bb1: {
--         StorageDead(_5);                 // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+2:21: +2:22
--         StorageDead(_4);                 // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+2:22: +2:23
--         StorageLive(_8);                 // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+4:5: +4:35
--         StorageLive(_9);                 // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+4:12: +4:34
--         StorageLive(_10);                // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+4:12: +4:30
--         StorageLive(_11);                // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+4:12: +4:28
--         Deinit(_11);                     // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+4:12: +4:28
--         (_11.0: u8) = const 40_u8;       // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+4:12: +4:28
--         _10 = (_11.0: u8);               // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+4:12: +4:30
--         _9 = Add(move _10, const 2_u8);  // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+4:12: +4:34
--         StorageDead(_10);                // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+4:33: +4:34
--         _8 = use_u8(move _9) -> bb2;     // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+4:5: +4:35
-+         StorageDead(_2);                 // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+2:21: +2:22
-+         StorageDead(_1);                 // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+2:22: +2:23
-+         StorageLive(_5);                 // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+4:5: +4:35
-+         StorageLive(_6);                 // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+4:12: +4:34
-+         StorageLive(_7);                 // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+4:12: +4:30
-+         StorageLive(_8);                 // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+4:12: +4:28
-+         Deinit(_8);                      // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+4:12: +4:28
-+         (_8.0: u8) = const 40_u8;        // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+4:12: +4:28
-+         _7 = (_8.0: u8);                 // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+4:12: +4:30
-+         _6 = Add(move _7, const 2_u8);   // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+4:12: +4:34
-+         StorageDead(_7);                 // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+4:33: +4:34
-+         _5 = use_u8(move _6) -> bb2;     // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+4:5: +4:35
+-         StorageDead(_5);                 // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:21: +2:22
+-         StorageDead(_4);                 // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:22: +2:23
+-         StorageLive(_8);                 // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:5: +4:35
+-         StorageLive(_9);                 // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:12: +4:34
+-         StorageLive(_10);                // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:12: +4:30
+-         StorageLive(_11);                // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:12: +4:28
+-         Deinit(_11);                     // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:12: +4:28
+-         (_11.0: u8) = const 40_u8;       // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:12: +4:28
+-         _10 = (_11.0: u8);               // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:12: +4:30
+-         _9 = Add(move _10, const 2_u8);  // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:12: +4:34
+-         StorageDead(_10);                // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:33: +4:34
+-         _8 = use_u8(move _9) -> bb2;     // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:5: +4:35
++         StorageDead(_2);                 // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:21: +2:22
++         StorageDead(_1);                 // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:22: +2:23
++         StorageLive(_5);                 // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:5: +4:35
++         StorageLive(_6);                 // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:12: +4:34
++         StorageLive(_7);                 // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:12: +4:30
++         StorageLive(_8);                 // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:12: +4:28
++         Deinit(_8);                      // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:12: +4:28
++         (_8.0: u8) = const 40_u8;        // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:12: +4:28
++         _7 = (_8.0: u8);                 // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:12: +4:30
++         _6 = Add(move _7, const 2_u8);   // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:12: +4:34
++         StorageDead(_7);                 // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:33: +4:34
++         _5 = use_u8(move _6) -> bb2;     // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:5: +4:35
                                            // mir::Constant
-                                           // + span: $DIR/simplify-locals-removes-unused-consts.rs:17:5: 17:11
+                                           // + span: $DIR/simplify_locals_removes_unused_consts.rs:17:5: 17:11
                                            // + literal: Const { ty: fn(u8) {use_u8}, val: Value(<ZST>) }
       }
   
       bb2: {
--         StorageDead(_9);                 // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+4:34: +4:35
--         StorageDead(_11);                // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+4:35: +4:36
-+         StorageDead(_6);                 // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+4:34: +4:35
-          StorageDead(_8);                 // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+4:35: +4:36
-+         StorageDead(_5);                 // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:+4:35: +4:36
-          _0 = const ();                   // scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:+0:11: +5:2
-          return;                          // scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:+5:2: +5:2
+-         StorageDead(_9);                 // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:34: +4:35
+-         StorageDead(_11);                // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:35: +4:36
++         StorageDead(_6);                 // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:34: +4:35
+          StorageDead(_8);                 // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:35: +4:36
++         StorageDead(_5);                 // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:35: +4:36
+          _0 = const ();                   // scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+0:11: +5:2
+          return;                          // scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+5:2: +5:2
       }
   }
   
diff --git a/src/test/mir-opt/simplify-locals-removes-unused-consts.rs b/src/test/mir-opt/simplify_locals_removes_unused_consts.rs
similarity index 100%
rename from src/test/mir-opt/simplify-locals-removes-unused-consts.rs
rename to src/test/mir-opt/simplify_locals_removes_unused_consts.rs
diff --git a/src/test/mir-opt/simplify_locals_removes_unused_discriminant_reads.map.SimplifyLocals.diff b/src/test/mir-opt/simplify_locals_removes_unused_discriminant_reads.map.SimplifyLocals.diff
index 51d26b08b2a1c..6e7294003afae 100644
--- a/src/test/mir-opt/simplify_locals_removes_unused_discriminant_reads.map.SimplifyLocals.diff
+++ b/src/test/mir-opt/simplify_locals_removes_unused_discriminant_reads.map.SimplifyLocals.diff
@@ -2,51 +2,51 @@
 + // MIR for `map` after SimplifyLocals
   
   fn map(_1: Option<Box<()>>) -> Option<Box<()>> {
-      debug x => _1;                       // in scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:+0:8: +0:9
-      let mut _0: std::option::Option<std::boxed::Box<()>>; // return place in scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:+0:31: +0:46
-      let mut _2: isize;                   // in scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:+2:9: +2:13
-      let _3: std::boxed::Box<()>;         // in scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:+3:14: +3:15
-      let mut _4: std::boxed::Box<()>;     // in scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:+3:25: +3:26
--     let mut _5: bool;                    // in scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:+5:1: +5:2
--     let mut _6: isize;                   // in scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:+5:1: +5:2
--     let mut _7: isize;                   // in scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:+5:1: +5:2
+      debug x => _1;                       // in scope 0 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+0:8: +0:9
+      let mut _0: std::option::Option<std::boxed::Box<()>>; // return place in scope 0 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+0:31: +0:46
+      let mut _2: isize;                   // in scope 0 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+2:9: +2:13
+      let _3: std::boxed::Box<()>;         // in scope 0 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+3:14: +3:15
+      let mut _4: std::boxed::Box<()>;     // in scope 0 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+3:25: +3:26
+-     let mut _5: bool;                    // in scope 0 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+5:1: +5:2
+-     let mut _6: isize;                   // in scope 0 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+5:1: +5:2
+-     let mut _7: isize;                   // in scope 0 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+5:1: +5:2
       scope 1 {
-          debug x => _3;                   // in scope 1 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:+3:14: +3:15
+          debug x => _3;                   // in scope 1 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+3:14: +3:15
       }
   
       bb0: {
--         _5 = const false;                // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:+1:11: +1:12
--         _5 = const true;                 // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:+1:11: +1:12
-          _2 = discriminant(_1);           // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:+1:11: +1:12
-          switchInt(move _2) -> [0_isize: bb3, 1_isize: bb1, otherwise: bb2]; // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:+1:5: +1:12
+-         _5 = const false;                // scope 0 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+1:11: +1:12
+-         _5 = const true;                 // scope 0 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+1:11: +1:12
+          _2 = discriminant(_1);           // scope 0 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+1:11: +1:12
+          switchInt(move _2) -> [0_isize: bb3, 1_isize: bb1, otherwise: bb2]; // scope 0 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+1:5: +1:12
       }
   
       bb1: {
-          StorageLive(_3);                 // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:+3:14: +3:15
-          _3 = move ((_1 as Some).0: std::boxed::Box<()>); // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:+3:14: +3:15
-          StorageLive(_4);                 // scope 1 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:+3:25: +3:26
-          _4 = move _3;                    // scope 1 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:+3:25: +3:26
-          Deinit(_0);                      // scope 1 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:+3:20: +3:27
-          ((_0 as Some).0: std::boxed::Box<()>) = move _4; // scope 1 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:+3:20: +3:27
-          discriminant(_0) = 1;            // scope 1 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:+3:20: +3:27
-          StorageDead(_4);                 // scope 1 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:+3:26: +3:27
-          StorageDead(_3);                 // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:+3:26: +3:27
-          goto -> bb4;                     // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:+3:26: +3:27
+          StorageLive(_3);                 // scope 0 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+3:14: +3:15
+          _3 = move ((_1 as Some).0: std::boxed::Box<()>); // scope 0 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+3:14: +3:15
+          StorageLive(_4);                 // scope 1 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+3:25: +3:26
+          _4 = move _3;                    // scope 1 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+3:25: +3:26
+          Deinit(_0);                      // scope 1 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+3:20: +3:27
+          ((_0 as Some).0: std::boxed::Box<()>) = move _4; // scope 1 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+3:20: +3:27
+          discriminant(_0) = 1;            // scope 1 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+3:20: +3:27
+          StorageDead(_4);                 // scope 1 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+3:26: +3:27
+          StorageDead(_3);                 // scope 0 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+3:26: +3:27
+          goto -> bb4;                     // scope 0 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+3:26: +3:27
       }
   
       bb2: {
-          unreachable;                     // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:+1:11: +1:12
+          unreachable;                     // scope 0 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+1:11: +1:12
       }
   
       bb3: {
-          Deinit(_0);                      // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:+2:17: +2:21
-          discriminant(_0) = 0;            // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:+2:17: +2:21
-          goto -> bb4;                     // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:+2:17: +2:21
+          Deinit(_0);                      // scope 0 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+2:17: +2:21
+          discriminant(_0) = 0;            // scope 0 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+2:17: +2:21
+          goto -> bb4;                     // scope 0 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+2:17: +2:21
       }
   
       bb4: {
--         _6 = discriminant(_1);           // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:+5:1: +5:2
-          return;                          // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:+5:2: +5:2
+-         _6 = discriminant(_1);           // scope 0 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+5:1: +5:2
+          return;                          // scope 0 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+5:2: +5:2
       }
   }
   
diff --git a/src/test/mir-opt/simplify-locals-removes-unused-discriminant-reads.rs b/src/test/mir-opt/simplify_locals_removes_unused_discriminant_reads.rs
similarity index 100%
rename from src/test/mir-opt/simplify-locals-removes-unused-discriminant-reads.rs
rename to src/test/mir-opt/simplify_locals_removes_unused_discriminant_reads.rs
diff --git a/src/test/mir-opt/slice-drop-shim.rs b/src/test/mir-opt/slice_drop_shim.rs
similarity index 100%
rename from src/test/mir-opt/slice-drop-shim.rs
rename to src/test/mir-opt/slice_drop_shim.rs
diff --git a/src/test/mir-opt/spanview_block.main.built.after.html b/src/test/mir-opt/spanview_block.main.built.after.html
index fbf751d6d30b4..b962d80c59e52 100644
--- a/src/test/mir-opt/spanview_block.main.built.after.html
+++ b/src/test/mir-opt/spanview_block.main.built.after.html
@@ -59,7 +59,7 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 4"><span class="line"><span class="code" style="--layer: 0">fn main() </span><span><span class="code even" style="--layer: 1" title="0: $DIR/spanview-block.rs:5:11: 5:13:
+<div class="code" style="counter-reset: line 4"><span class="line"><span class="code" style="--layer: 0">fn main() </span><span><span class="code even" style="--layer: 1" title="0: $DIR/spanview_block.rs:5:11: 5:13:
     5:11-5:13: Assign: _0 = const ()
     5:13-5:13: Return: return"><span class="annotation">0⦊</span>{}<span class="annotation">⦉0</span></span></span></span></div>
 </body>
diff --git a/src/test/mir-opt/spanview-block.rs b/src/test/mir-opt/spanview_block.rs
similarity index 100%
rename from src/test/mir-opt/spanview-block.rs
rename to src/test/mir-opt/spanview_block.rs
diff --git a/src/test/mir-opt/spanview_statement.main.built.after.html b/src/test/mir-opt/spanview_statement.main.built.after.html
index 02b2720feefc9..43bff7d096e21 100644
--- a/src/test/mir-opt/spanview_statement.main.built.after.html
+++ b/src/test/mir-opt/spanview_statement.main.built.after.html
@@ -59,8 +59,8 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 4"><span class="line"><span class="code" style="--layer: 0">fn main() </span><span><span class="code even" style="--layer: 1" title="0[0]: $DIR/spanview-statement.rs:5:11: 5:13:
-    5:11-5:13: Assign: _0 = const ()"><span class="annotation">0[0]⦊</span>{}<span class="annotation">⦉0[0]</span></span></span><span><span class="code odd" style="--layer: 1" title="0:Return: $DIR/spanview-statement.rs:5:13: 5:13:
+<div class="code" style="counter-reset: line 4"><span class="line"><span class="code" style="--layer: 0">fn main() </span><span><span class="code even" style="--layer: 1" title="0[0]: $DIR/spanview_statement.rs:5:11: 5:13:
+    5:11-5:13: Assign: _0 = const ()"><span class="annotation">0[0]⦊</span>{}<span class="annotation">⦉0[0]</span></span></span><span><span class="code odd" style="--layer: 1" title="0:Return: $DIR/spanview_statement.rs:5:13: 5:13:
     5:13-5:13: Return: return"><span class="annotation">0:Return⦊</span>‸<span class="annotation">⦉0:Return</span></span></span></span></div>
 </body>
 </html>
diff --git a/src/test/mir-opt/spanview-statement.rs b/src/test/mir-opt/spanview_statement.rs
similarity index 100%
rename from src/test/mir-opt/spanview-statement.rs
rename to src/test/mir-opt/spanview_statement.rs
diff --git a/src/test/mir-opt/spanview_terminator.main.built.after.html b/src/test/mir-opt/spanview_terminator.main.built.after.html
index a4cda7dd67ec6..aa7e44c157161 100644
--- a/src/test/mir-opt/spanview_terminator.main.built.after.html
+++ b/src/test/mir-opt/spanview_terminator.main.built.after.html
@@ -59,7 +59,7 @@
 </style>
 </head>
 <body>
-<div class="code" style="counter-reset: line 4"><span class="line"><span class="code" style="--layer: 0">fn main() {}</span><span><span class="code even" style="--layer: 1" title="0:Return: $DIR/spanview-terminator.rs:5:13: 5:13:
+<div class="code" style="counter-reset: line 4"><span class="line"><span class="code" style="--layer: 0">fn main() {}</span><span><span class="code even" style="--layer: 1" title="0:Return: $DIR/spanview_terminator.rs:5:13: 5:13:
     5:13-5:13: Return: return"><span class="annotation">0:Return⦊</span>‸<span class="annotation">⦉0:Return</span></span></span></span></div>
 </body>
 </html>
diff --git a/src/test/mir-opt/spanview-terminator.rs b/src/test/mir-opt/spanview_terminator.rs
similarity index 100%
rename from src/test/mir-opt/spanview-terminator.rs
rename to src/test/mir-opt/spanview_terminator.rs
diff --git a/src/test/mir-opt/tls_access.main.PreCodegen.after.mir b/src/test/mir-opt/tls_access.main.PreCodegen.after.mir
index b6c36be2bbe4c..09453b8ba9c3a 100644
--- a/src/test/mir-opt/tls_access.main.PreCodegen.after.mir
+++ b/src/test/mir-opt/tls_access.main.PreCodegen.after.mir
@@ -1,28 +1,28 @@
 // MIR for `main` after PreCodegen
 
 fn main() -> () {
-    let mut _0: ();                      // return place in scope 0 at $DIR/tls-access.rs:+0:11: +0:11
-    let _2: *mut u8;                     // in scope 0 at $DIR/tls-access.rs:+2:18: +2:21
-    let mut _3: *mut u8;                 // in scope 0 at $DIR/tls-access.rs:+3:9: +3:12
+    let mut _0: ();                      // return place in scope 0 at $DIR/tls_access.rs:+0:11: +0:11
+    let _2: *mut u8;                     // in scope 0 at $DIR/tls_access.rs:+2:18: +2:21
+    let mut _3: *mut u8;                 // in scope 0 at $DIR/tls_access.rs:+3:9: +3:12
     scope 1 {
-        let _1: &u8;                     // in scope 1 at $DIR/tls-access.rs:+2:13: +2:14
+        let _1: &u8;                     // in scope 1 at $DIR/tls_access.rs:+2:13: +2:14
         scope 2 {
-            debug a => _1;               // in scope 2 at $DIR/tls-access.rs:+2:13: +2:14
+            debug a => _1;               // in scope 2 at $DIR/tls_access.rs:+2:13: +2:14
         }
     }
 
     bb0: {
-        StorageLive(_1);                 // scope 1 at $DIR/tls-access.rs:+2:13: +2:14
-        StorageLive(_2);                 // scope 1 at $DIR/tls-access.rs:+2:18: +2:21
-        _2 = &/*tls*/ mut FOO;           // scope 1 at $DIR/tls-access.rs:+2:18: +2:21
-        _1 = &(*_2);                     // scope 1 at $DIR/tls-access.rs:+2:17: +2:21
-        StorageLive(_3);                 // scope 2 at $DIR/tls-access.rs:+3:9: +3:12
-        _3 = &/*tls*/ mut FOO;           // scope 2 at $DIR/tls-access.rs:+3:9: +3:12
-        (*_3) = const 42_u8;             // scope 2 at $DIR/tls-access.rs:+3:9: +3:17
-        StorageDead(_3);                 // scope 2 at $DIR/tls-access.rs:+3:17: +3:18
-        _0 = const ();                   // scope 1 at $DIR/tls-access.rs:+1:5: +4:6
-        StorageDead(_2);                 // scope 1 at $DIR/tls-access.rs:+4:5: +4:6
-        StorageDead(_1);                 // scope 1 at $DIR/tls-access.rs:+4:5: +4:6
-        return;                          // scope 0 at $DIR/tls-access.rs:+5:2: +5:2
+        StorageLive(_1);                 // scope 1 at $DIR/tls_access.rs:+2:13: +2:14
+        StorageLive(_2);                 // scope 1 at $DIR/tls_access.rs:+2:18: +2:21
+        _2 = &/*tls*/ mut FOO;           // scope 1 at $DIR/tls_access.rs:+2:18: +2:21
+        _1 = &(*_2);                     // scope 1 at $DIR/tls_access.rs:+2:17: +2:21
+        StorageLive(_3);                 // scope 2 at $DIR/tls_access.rs:+3:9: +3:12
+        _3 = &/*tls*/ mut FOO;           // scope 2 at $DIR/tls_access.rs:+3:9: +3:12
+        (*_3) = const 42_u8;             // scope 2 at $DIR/tls_access.rs:+3:9: +3:17
+        StorageDead(_3);                 // scope 2 at $DIR/tls_access.rs:+3:17: +3:18
+        _0 = const ();                   // scope 1 at $DIR/tls_access.rs:+1:5: +4:6
+        StorageDead(_2);                 // scope 1 at $DIR/tls_access.rs:+4:5: +4:6
+        StorageDead(_1);                 // scope 1 at $DIR/tls_access.rs:+4:5: +4:6
+        return;                          // scope 0 at $DIR/tls_access.rs:+5:2: +5:2
     }
 }
diff --git a/src/test/mir-opt/tls-access.rs b/src/test/mir-opt/tls_access.rs
similarity index 100%
rename from src/test/mir-opt/tls-access.rs
rename to src/test/mir-opt/tls_access.rs
diff --git a/src/test/mir-opt/uninhabited_enum.process_never.SimplifyLocals.after.mir b/src/test/mir-opt/uninhabited_enum.process_never.SimplifyLocals.after.mir
index 6ed53643f4bf0..2c0fcc6621a3e 100644
--- a/src/test/mir-opt/uninhabited_enum.process_never.SimplifyLocals.after.mir
+++ b/src/test/mir-opt/uninhabited_enum.process_never.SimplifyLocals.after.mir
@@ -1,16 +1,16 @@
 // MIR for `process_never` after SimplifyLocals
 
 fn process_never(_1: *const !) -> () {
-    debug input => _1;                   // in scope 0 at $DIR/uninhabited-enum.rs:+0:22: +0:27
-    let mut _0: ();                      // return place in scope 0 at $DIR/uninhabited-enum.rs:+0:39: +0:39
-    let _2: &!;                          // in scope 0 at $DIR/uninhabited-enum.rs:+1:8: +1:14
+    debug input => _1;                   // in scope 0 at $DIR/uninhabited_enum.rs:+0:22: +0:27
+    let mut _0: ();                      // return place in scope 0 at $DIR/uninhabited_enum.rs:+0:39: +0:39
+    let _2: &!;                          // in scope 0 at $DIR/uninhabited_enum.rs:+1:8: +1:14
     scope 1 {
-        debug _input => _2;              // in scope 1 at $DIR/uninhabited-enum.rs:+1:8: +1:14
+        debug _input => _2;              // in scope 1 at $DIR/uninhabited_enum.rs:+1:8: +1:14
     }
     scope 2 {
     }
 
     bb0: {
-        unreachable;                     // scope 0 at $DIR/uninhabited-enum.rs:+0:39: +2:2
+        unreachable;                     // scope 0 at $DIR/uninhabited_enum.rs:+0:39: +2:2
     }
 }
diff --git a/src/test/mir-opt/uninhabited_enum.process_void.SimplifyLocals.after.mir b/src/test/mir-opt/uninhabited_enum.process_void.SimplifyLocals.after.mir
index bbb81724ccfd8..ae341a7b97b66 100644
--- a/src/test/mir-opt/uninhabited_enum.process_void.SimplifyLocals.after.mir
+++ b/src/test/mir-opt/uninhabited_enum.process_void.SimplifyLocals.after.mir
@@ -1,18 +1,18 @@
 // MIR for `process_void` after SimplifyLocals
 
 fn process_void(_1: *const Void) -> () {
-    debug input => _1;                   // in scope 0 at $DIR/uninhabited-enum.rs:+0:21: +0:26
-    let mut _0: ();                      // return place in scope 0 at $DIR/uninhabited-enum.rs:+0:41: +0:41
-    let _2: &Void;                       // in scope 0 at $DIR/uninhabited-enum.rs:+1:8: +1:14
+    debug input => _1;                   // in scope 0 at $DIR/uninhabited_enum.rs:+0:21: +0:26
+    let mut _0: ();                      // return place in scope 0 at $DIR/uninhabited_enum.rs:+0:41: +0:41
+    let _2: &Void;                       // in scope 0 at $DIR/uninhabited_enum.rs:+1:8: +1:14
     scope 1 {
-        debug _input => _2;              // in scope 1 at $DIR/uninhabited-enum.rs:+1:8: +1:14
+        debug _input => _2;              // in scope 1 at $DIR/uninhabited_enum.rs:+1:8: +1:14
     }
     scope 2 {
     }
 
     bb0: {
-        StorageLive(_2);                 // scope 0 at $DIR/uninhabited-enum.rs:+1:8: +1:14
-        StorageDead(_2);                 // scope 0 at $DIR/uninhabited-enum.rs:+4:1: +4:2
-        return;                          // scope 0 at $DIR/uninhabited-enum.rs:+4:2: +4:2
+        StorageLive(_2);                 // scope 0 at $DIR/uninhabited_enum.rs:+1:8: +1:14
+        StorageDead(_2);                 // scope 0 at $DIR/uninhabited_enum.rs:+4:1: +4:2
+        return;                          // scope 0 at $DIR/uninhabited_enum.rs:+4:2: +4:2
     }
 }
diff --git a/src/test/mir-opt/uninhabited-enum.rs b/src/test/mir-opt/uninhabited_enum.rs
similarity index 100%
rename from src/test/mir-opt/uninhabited-enum.rs
rename to src/test/mir-opt/uninhabited_enum.rs
diff --git a/src/test/mir-opt/unusual_item_types.E-V-{constant#0}.built.after.mir b/src/test/mir-opt/unusual_item_types.E-V-{constant#0}.built.after.mir
index c8b0f8e41b77c..5257491f0d494 100644
--- a/src/test/mir-opt/unusual_item_types.E-V-{constant#0}.built.after.mir
+++ b/src/test/mir-opt/unusual_item_types.E-V-{constant#0}.built.after.mir
@@ -1,10 +1,10 @@
 // MIR for `E::V::{constant#0}` after built
 
 E::V::{constant#0}: isize = {
-    let mut _0: isize;                   // return place in scope 0 at $DIR/unusual-item-types.rs:+0:9: +0:10
+    let mut _0: isize;                   // return place in scope 0 at $DIR/unusual_item_types.rs:+0:9: +0:10
 
     bb0: {
-        _0 = const 5_isize;              // scope 0 at $DIR/unusual-item-types.rs:+0:9: +0:10
-        return;                          // scope 0 at $DIR/unusual-item-types.rs:+0:9: +0:10
+        _0 = const 5_isize;              // scope 0 at $DIR/unusual_item_types.rs:+0:9: +0:10
+        return;                          // scope 0 at $DIR/unusual_item_types.rs:+0:9: +0:10
     }
 }
diff --git a/src/test/mir-opt/unusual_item_types.Test-X-{constructor#0}.built.after.mir b/src/test/mir-opt/unusual_item_types.Test-X-{constructor#0}.built.after.mir
index a46e60173774e..ee029676311bf 100644
--- a/src/test/mir-opt/unusual_item_types.Test-X-{constructor#0}.built.after.mir
+++ b/src/test/mir-opt/unusual_item_types.Test-X-{constructor#0}.built.after.mir
@@ -1,12 +1,12 @@
 // MIR for `Test::X` after built
 
 fn Test::X(_1: usize) -> Test {
-    let mut _0: Test;                    // return place in scope 0 at $DIR/unusual-item-types.rs:+0:5: +0:6
+    let mut _0: Test;                    // return place in scope 0 at $DIR/unusual_item_types.rs:+0:5: +0:6
 
     bb0: {
-        Deinit(_0);                      // scope 0 at $DIR/unusual-item-types.rs:+0:5: +0:6
-        ((_0 as X).0: usize) = move _1;  // scope 0 at $DIR/unusual-item-types.rs:+0:5: +0:6
-        discriminant(_0) = 0;            // scope 0 at $DIR/unusual-item-types.rs:+0:5: +0:6
-        return;                          // scope 0 at $DIR/unusual-item-types.rs:+0:5: +0:6
+        Deinit(_0);                      // scope 0 at $DIR/unusual_item_types.rs:+0:5: +0:6
+        ((_0 as X).0: usize) = move _1;  // scope 0 at $DIR/unusual_item_types.rs:+0:5: +0:6
+        discriminant(_0) = 0;            // scope 0 at $DIR/unusual_item_types.rs:+0:5: +0:6
+        return;                          // scope 0 at $DIR/unusual_item_types.rs:+0:5: +0:6
     }
 }
diff --git a/src/test/mir-opt/unusual-item-types.rs b/src/test/mir-opt/unusual_item_types.rs
similarity index 100%
rename from src/test/mir-opt/unusual-item-types.rs
rename to src/test/mir-opt/unusual_item_types.rs
diff --git a/src/test/mir-opt/unusual_item_types.{impl#0}-ASSOCIATED_CONSTANT.built.after.mir b/src/test/mir-opt/unusual_item_types.{impl#0}-ASSOCIATED_CONSTANT.built.after.mir
index 7cb9050bc4bc6..90444b481221f 100644
--- a/src/test/mir-opt/unusual_item_types.{impl#0}-ASSOCIATED_CONSTANT.built.after.mir
+++ b/src/test/mir-opt/unusual_item_types.{impl#0}-ASSOCIATED_CONSTANT.built.after.mir
@@ -1,10 +1,10 @@
-// MIR for `<impl at $DIR/unusual-item-types.rs:9:1: 9:7>::ASSOCIATED_CONSTANT` after built
+// MIR for `<impl at $DIR/unusual_item_types.rs:9:1: 9:7>::ASSOCIATED_CONSTANT` after built
 
-const <impl at $DIR/unusual-item-types.rs:9:1: 9:7>::ASSOCIATED_CONSTANT: i32 = {
-    let mut _0: i32;                     // return place in scope 0 at $DIR/unusual-item-types.rs:+0:32: +0:35
+const <impl at $DIR/unusual_item_types.rs:9:1: 9:7>::ASSOCIATED_CONSTANT: i32 = {
+    let mut _0: i32;                     // return place in scope 0 at $DIR/unusual_item_types.rs:+0:32: +0:35
 
     bb0: {
-        _0 = const 2_i32;                // scope 0 at $DIR/unusual-item-types.rs:+0:38: +0:39
-        return;                          // scope 0 at $DIR/unusual-item-types.rs:+0:5: +0:40
+        _0 = const 2_i32;                // scope 0 at $DIR/unusual_item_types.rs:+0:38: +0:39
+        return;                          // scope 0 at $DIR/unusual_item_types.rs:+0:5: +0:40
     }
 }
diff --git a/src/test/mir-opt/while-storage.rs b/src/test/mir-opt/while_storage.rs
similarity index 100%
rename from src/test/mir-opt/while-storage.rs
rename to src/test/mir-opt/while_storage.rs
diff --git a/src/test/mir-opt/while_storage.while_loop.PreCodegen.after.mir b/src/test/mir-opt/while_storage.while_loop.PreCodegen.after.mir
index a5e7d6afdf36d..68aa3e5db3298 100644
--- a/src/test/mir-opt/while_storage.while_loop.PreCodegen.after.mir
+++ b/src/test/mir-opt/while_storage.while_loop.PreCodegen.after.mir
@@ -1,56 +1,56 @@
 // MIR for `while_loop` after PreCodegen
 
 fn while_loop(_1: bool) -> () {
-    debug c => _1;                       // in scope 0 at $DIR/while-storage.rs:+0:15: +0:16
-    let mut _0: ();                      // return place in scope 0 at $DIR/while-storage.rs:+0:24: +0:24
-    let mut _2: bool;                    // in scope 0 at $DIR/while-storage.rs:+1:11: +1:22
-    let mut _3: bool;                    // in scope 0 at $DIR/while-storage.rs:+1:20: +1:21
-    let mut _4: bool;                    // in scope 0 at $DIR/while-storage.rs:+2:12: +2:23
-    let mut _5: bool;                    // in scope 0 at $DIR/while-storage.rs:+2:21: +2:22
+    debug c => _1;                       // in scope 0 at $DIR/while_storage.rs:+0:15: +0:16
+    let mut _0: ();                      // return place in scope 0 at $DIR/while_storage.rs:+0:24: +0:24
+    let mut _2: bool;                    // in scope 0 at $DIR/while_storage.rs:+1:11: +1:22
+    let mut _3: bool;                    // in scope 0 at $DIR/while_storage.rs:+1:20: +1:21
+    let mut _4: bool;                    // in scope 0 at $DIR/while_storage.rs:+2:12: +2:23
+    let mut _5: bool;                    // in scope 0 at $DIR/while_storage.rs:+2:21: +2:22
 
     bb0: {
-        goto -> bb1;                     // scope 0 at $DIR/while-storage.rs:+1:5: +5:6
+        goto -> bb1;                     // scope 0 at $DIR/while_storage.rs:+1:5: +5:6
     }
 
     bb1: {
-        StorageLive(_2);                 // scope 0 at $DIR/while-storage.rs:+1:11: +1:22
-        StorageLive(_3);                 // scope 0 at $DIR/while-storage.rs:+1:20: +1:21
-        _3 = _1;                         // scope 0 at $DIR/while-storage.rs:+1:20: +1:21
-        _2 = get_bool(move _3) -> bb2;   // scope 0 at $DIR/while-storage.rs:+1:11: +1:22
+        StorageLive(_2);                 // scope 0 at $DIR/while_storage.rs:+1:11: +1:22
+        StorageLive(_3);                 // scope 0 at $DIR/while_storage.rs:+1:20: +1:21
+        _3 = _1;                         // scope 0 at $DIR/while_storage.rs:+1:20: +1:21
+        _2 = get_bool(move _3) -> bb2;   // scope 0 at $DIR/while_storage.rs:+1:11: +1:22
                                          // mir::Constant
-                                         // + span: $DIR/while-storage.rs:10:11: 10:19
+                                         // + span: $DIR/while_storage.rs:10:11: 10:19
                                          // + literal: Const { ty: fn(bool) -> bool {get_bool}, val: Value(<ZST>) }
     }
 
     bb2: {
-        StorageDead(_3);                 // scope 0 at $DIR/while-storage.rs:+1:21: +1:22
-        switchInt(move _2) -> [false: bb7, otherwise: bb3]; // scope 0 at $DIR/while-storage.rs:+1:11: +1:22
+        StorageDead(_3);                 // scope 0 at $DIR/while_storage.rs:+1:21: +1:22
+        switchInt(move _2) -> [false: bb7, otherwise: bb3]; // scope 0 at $DIR/while_storage.rs:+1:11: +1:22
     }
 
     bb3: {
-        StorageLive(_4);                 // scope 0 at $DIR/while-storage.rs:+2:12: +2:23
-        StorageLive(_5);                 // scope 0 at $DIR/while-storage.rs:+2:21: +2:22
-        _5 = _1;                         // scope 0 at $DIR/while-storage.rs:+2:21: +2:22
-        _4 = get_bool(move _5) -> bb4;   // scope 0 at $DIR/while-storage.rs:+2:12: +2:23
+        StorageLive(_4);                 // scope 0 at $DIR/while_storage.rs:+2:12: +2:23
+        StorageLive(_5);                 // scope 0 at $DIR/while_storage.rs:+2:21: +2:22
+        _5 = _1;                         // scope 0 at $DIR/while_storage.rs:+2:21: +2:22
+        _4 = get_bool(move _5) -> bb4;   // scope 0 at $DIR/while_storage.rs:+2:12: +2:23
                                          // mir::Constant
-                                         // + span: $DIR/while-storage.rs:11:12: 11:20
+                                         // + span: $DIR/while_storage.rs:11:12: 11:20
                                          // + literal: Const { ty: fn(bool) -> bool {get_bool}, val: Value(<ZST>) }
     }
 
     bb4: {
-        StorageDead(_5);                 // scope 0 at $DIR/while-storage.rs:+2:22: +2:23
-        switchInt(move _4) -> [false: bb6, otherwise: bb5]; // scope 0 at $DIR/while-storage.rs:+2:12: +2:23
+        StorageDead(_5);                 // scope 0 at $DIR/while_storage.rs:+2:22: +2:23
+        switchInt(move _4) -> [false: bb6, otherwise: bb5]; // scope 0 at $DIR/while_storage.rs:+2:12: +2:23
     }
 
     bb5: {
-        StorageDead(_4);                 // scope 0 at $DIR/while-storage.rs:+4:9: +4:10
+        StorageDead(_4);                 // scope 0 at $DIR/while_storage.rs:+4:9: +4:10
         goto -> bb8;                     // scope 0 at no-location
     }
 
     bb6: {
-        StorageDead(_4);                 // scope 0 at $DIR/while-storage.rs:+4:9: +4:10
-        StorageDead(_2);                 // scope 0 at $DIR/while-storage.rs:+5:5: +5:6
-        goto -> bb1;                     // scope 0 at $DIR/while-storage.rs:+1:5: +5:6
+        StorageDead(_4);                 // scope 0 at $DIR/while_storage.rs:+4:9: +4:10
+        StorageDead(_2);                 // scope 0 at $DIR/while_storage.rs:+5:5: +5:6
+        goto -> bb1;                     // scope 0 at $DIR/while_storage.rs:+1:5: +5:6
     }
 
     bb7: {
@@ -58,7 +58,7 @@ fn while_loop(_1: bool) -> () {
     }
 
     bb8: {
-        StorageDead(_2);                 // scope 0 at $DIR/while-storage.rs:+5:5: +5:6
-        return;                          // scope 0 at $DIR/while-storage.rs:+6:2: +6:2
+        StorageDead(_2);                 // scope 0 at $DIR/while_storage.rs:+5:5: +5:6
+        return;                          // scope 0 at $DIR/while_storage.rs:+6:2: +6:2
     }
 }
diff --git a/src/tools/tidy/src/main.rs b/src/tools/tidy/src/main.rs
index ee883777c31d9..b0b11cafca5a8 100644
--- a/src/tools/tidy/src/main.rs
+++ b/src/tools/tidy/src/main.rs
@@ -31,6 +31,7 @@ fn main() {
     let args: Vec<String> = env::args().skip(1).collect();
 
     let verbose = args.iter().any(|s| *s == "--verbose");
+    let bless = args.iter().any(|s| *s == "--bless");
 
     let bad = std::sync::Arc::new(AtomicBool::new(false));
 
@@ -64,7 +65,7 @@ fn main() {
         // Checks over tests.
         check!(debug_artifacts, &src_path);
         check!(ui_tests, &src_path);
-        check!(mir_opt_tests, &src_path);
+        check!(mir_opt_tests, &src_path, bless);
 
         // Checks that only make sense for the compiler.
         check!(errors, &compiler_path);
diff --git a/src/tools/tidy/src/mir_opt_tests.rs b/src/tools/tidy/src/mir_opt_tests.rs
index f9e8b55497b58..ea24fa4513832 100644
--- a/src/tools/tidy/src/mir_opt_tests.rs
+++ b/src/tools/tidy/src/mir_opt_tests.rs
@@ -1,9 +1,9 @@
-//! Tidy check to ensure that mir opt directories do not have stale files.
+//! Tidy check to ensure that mir opt directories do not have stale files or dashes in file names
 
 use std::collections::HashSet;
 use std::path::{Path, PathBuf};
 
-pub fn check(path: &Path, bad: &mut bool) {
+fn check_unused_files(path: &Path, bad: &mut bool) {
     let mut rs_files = Vec::<PathBuf>::new();
     let mut output_files = HashSet::<PathBuf>::new();
     let files = walkdir::WalkDir::new(&path.join("test/mir-opt")).into_iter();
@@ -35,3 +35,36 @@ pub fn check(path: &Path, bad: &mut bool) {
         }
     }
 }
+
+fn check_dash_files(path: &Path, bless: bool, bad: &mut bool) {
+    for file in walkdir::WalkDir::new(&path.join("test/mir-opt"))
+        .into_iter()
+        .filter_map(Result::ok)
+        .filter(|e| e.file_type().is_file())
+    {
+        let path = file.path();
+        if path.extension() == Some("rs".as_ref()) {
+            if let Some(name) = path.file_name().and_then(|s| s.to_str()) {
+                if name.contains('-') {
+                    if !bless {
+                        tidy_error!(
+                            bad,
+                            "mir-opt test files should not have dashes in them: {}",
+                            path.display()
+                        );
+                    } else {
+                        let new_name = name.replace('-', "_");
+                        let mut new_path = path.to_owned();
+                        new_path.set_file_name(new_name);
+                        let _ = std::fs::rename(path, new_path);
+                    }
+                }
+            }
+        }
+    }
+}
+
+pub fn check(path: &Path, bless: bool, bad: &mut bool) {
+    check_unused_files(path, bad);
+    check_dash_files(path, bless, bad);
+}