Support annotationlib.ForwardRef

[Tinche]

No description provided.

[codspeed-hq]

Merging this PR will not alter performance

✅ 64 untouched benchmarks

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_{Comparing tin/more-649-support (235a019) with main (ec6f824)¹}

Footnotes

1. No successful run was found on main (3779c75) during the generation of this report, so ec6f824 was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩