Add type promotion rules for NoTangent and ZeroTangent, and add eltype for NoTangent
#1159
| Job | Run time |
|---|---|
| 25m 41s | |
| 2m 4s | |
| 37s | |
| 2m 27s | |
| 2m 28s | |
| 2m 22s | |
| 2m 20s | |
| 5m 27s | |
| 6m 10s | |
| 57s | |
| 2m 59s | |
| 2m 18s | |
| 4m 42s | |
| 1h 0m 32s |