Don't hold a reference to the UnitHeader during DIE parsing
#732
| Job | Run time |
|---|---|
| 39s | |
| 57s | |
| 58s | |
| 2m 30s | |
| 54s | |
| 54s | |
| 1m 3s | |
| 8m 0s | |
| 6m 59s | |
| 1m 38s | |
| 5s | |
| 1m 15s | |
| 41s | |
| 5m 13s | |
| 5m 12s | |
| 5m 7s | |
| 5m 9s | |
| 5m 7s | |
| 5m 10s | |
| 57m 31s |