Expose the Freeze trait again (unstably) and forbid implementing it manually
#116210
| Job | Run time |
|---|---|
| 25m 3s | |
| 4m 17s | |
| 49m 39s | |
| 0s | |
| 30m 37s | |
| 0s | |
| 0s | |
| 0s | |
| 0s | |
| 0s | |
| 0s | |
| 1h 49m 36s |