Add Type::spliceArray(), improve splice_array() array type narrowing
#20696
| Job | Run time |
|---|---|
| 1m 48s | |
| 1m 51s | |
| 3m 1s | |
| 2m 48s | |
| 1m 38s | |
| 2m 51s | |
| 2m 55s | |
| 2m 56s | |
| 1m 29s | |
| 2m 49s | |
| 2m 32s | |
| 1m 47s | |
| 2m 44s | |
| 1m 31s | |
| 2m 38s | |
| 1m 38s | |
| 2m 44s | |
| 1m 29s | |
| 41m 9s |