Resolve false negative for used-before-assignment with TYPE_CHECKING guard
#4302
| Job | Run time |
|---|---|
| 12m 52s | |
| 8m 45s | |
| 2m 22s | |
| 49s | |
| 12m 3s | |
| 3m 32s | |
| 10m 52s | |
| 1m 5s | |
| 52m 20s |