fix NamedArray.imag and NamedArray.real typing info
#10061
| Job | Run time |
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| 2s | |
| 9s | |
| 17m 28s | |
| 19m 47s | |
| 32m 19s | |
| 33m 49s | |
| 34m 32s | |
| 18m 11s | |
| 4m 54s | |
| 12m 22s | |
| 12m 41s | |
| 22m 38s | |
| 3h 28m 52s |