Add dot_iex IEx.Config key to take precedence over existing configurations
#9827
| Job | Run time |
|---|---|
| 10s | |
| 5m 39s | |
| 5m 29s | |
| 1m 47s | |
| 1m 37s | |
| 1m 36s | |
| 1m 33s | |
| 1m 47s | |
| 1m 43s | |
| 21m 21s |