Add support for the variant operator in the type and effect system
#2762
| Job | Run time |
|---|---|
| 39s | |
| 38s | |
| 5m 25s | |
| 7m 35s | |
| 9m 45s | |
| 9m 44s | |
| 1m 37s | |
| 1m 32s | |
| 5m 33s | |
| 2m 12s | |
| 2m 30s | |
| 2m 48s | |
| 2m 7s | |
| 3m 0s | |
| 4m 33s | |
| 59m 38s |