Add dot_iex IEx.Config key to take precedence over existing configurations
#9826
| Job | Run time |
|---|---|
| 12s | |
| 5m 39s | |
| 3m 55s | |
| 3m 51s | |
| 3m 40s | |
| 4m 8s | |
| 5m 18s | |
| 4m 12s | |
| 5m 32s | |
| 36m 27s |