Unroll some @eval loops around _arb_set code
#2187
| Job | Run time |
|---|---|
| 52s | |
| 52s | |
| 52s | |
| 2h 49m 2s | |
| 2h 49m 2s | |
| 2h 49m 2s | |
| 6h 0m 13s | |
| 6h 0m 14s | |
| 2h 55m 38s | |
| 1m 43s | |
| 1m 43s | |
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| 1m 45s | |
| 1m 45s | |
| 1m 45s | |
| 23h 36m 11s |