module toString is "Module"

Author: guybedford

src/loader.js

@@ -19,6 +19,12 @@
 */
 
 function Module() {}
+// http://www.ecma-international.org/ecma-262/6.0/#sec-@@tostringtag
+defineProperty(Module.prototype, 'toString', {
+  value: function() {
+    return 'Module';
+  }
+});
 function Loader(options) {
   this._loader = {
     loaderObj: this,

test/system.normalize.spec.js

@@ -1,6 +1,13 @@
 //
 
 describe('System', function () {
+
+  describe('#toString', function() {
+    it('Module toString is "Module"', function() {
+      expect(System.newModule({}).toString()).to.equal('Module');
+    });
+  });
+
   describe('#normalize', function () {
 
     describe('when having no argument', function () {