crucible-llvm: Improve error messages in a few pointer-to-bitvector casts
#2115
| Job | Run time |
|---|---|
| 7s | |
| 31m 6s | |
| 29m 7s | |
| 29m 43s | |
| 0s | |
| 28m 37s | |
| 21m 50s | |
| 23m 1s | |
| 2h 43m 31s |