`size_t` fixups for GCC 11.2 MingW (#647)
`size_t` fixups for GCC 11.2 MingW (#647)

Summary:
Pull Request resolved: https://github.com/facebook/redex/pull/647

As title.

Fixes #646.

Reviewed By: ssj933

Differential Revision: D31899158

fbshipit-source-id: 3e8bc13149ef7f0595dd148d55ab3eede77a09d0

facebook/redex,facebook/redex,facebook/redex,facebook/redex,facebook/redex,facebook/redex,facebook/redex,facebook/redex,facebook/redex