Improve ReflectionEnum->getCases() performance
#2084
| Job | Run time |
|---|---|
| 16m 27s | |
| 31s | |
| 1m 50s | |
| 33s | |
| 18s | |
| 1m 44s | |
| 28s | |
| 57s | |
| 4m 39s | |
| 2m 13s | |
| 16s | |
| 4m 37s | |
| 24s | |
| 22s | |
| 2m 13s | |
| 52s | |
| 19s | |
| 5m 2s | |
| 2m 46s | |
| 1m 59s | |
| 2m 10s | |
| 1m 54s | |
| 2m 11s | |
| 54m 45s |