Test BC for built-in torchbind methods (#38560)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/38560
Test Plan: Imported from OSS
Reviewed By: ngimel
Differential Revision: D21598067
Pulled By: jamesr66a
fbshipit-source-id: 26a0e92a5c2883326be261cf84b7e916ebfd60d8
