msvc anonymous namespace bug (#41199)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/41199
workaround for: https://developercommunity.visualstudio.com/content/problem/900452/variable-in-anonymous-namespace-has-external-linka.html
Test Plan: CI green, ovrsource green
Reviewed By: malfet
Differential Revision: D22462050
fbshipit-source-id: 11a2fd6a4db1f29ce350699cfc3121dc89ab7ef6
