Add Windows integration tests showing that subst is handled inconsistently
#10265
| Job | Run time |
|---|---|
| 1m 44s | |
| 6m 6s | |
| 4m 52s | |
| 12m 42s |
subst is handled inconsistently
#10265
| Job | Run time |
|---|---|
| 1m 44s | |
| 6m 6s | |
| 4m 52s | |
| 12m 42s |