checker: fix missing option variable checking when casting using as operator
#8957
| Job | Run time |
|---|---|
| 39m 11s | |
| 25m 26s | |
| 35m 29s | |
| 1h 40m 6s |
as operator
#8957
| Job | Run time |
|---|---|
| 39m 11s | |
| 25m 26s | |
| 35m 29s | |
| 1h 40m 6s |