[FX] Experimental type annotation pass using Python signatures (#53831)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/53831
Test Plan: Imported from OSS
Reviewed By: suo
Differential Revision: D26982804
Pulled By: jamesr66a
fbshipit-source-id: 17db9f71e729206f29ee231e34723d9616f128b7
