checker: disallow expr is Type if expr is Optional
#12588
| Job | Run time |
|---|---|
| 1m 36s | |
| 2m 23s | |
| 3m 59s |
expr is Type if expr is Optional
#12588
| Job | Run time |
|---|---|
| 1m 36s | |
| 2m 23s | |
| 3m 59s |