fix(engine/fstar): fix c_trait_goal and always use it for traits
#2331
| Job | Run time |
|---|---|
| 32m 32s | |
| 32m 32s |
c_trait_goal and always use it for traits
#2331
| Job | Run time |
|---|---|
| 32m 32s | |
| 32m 32s |