[PATCH] D97702: [clang][modules] Use extensible RTTI for ModuleFileExtension

[Michael Spencer via Phabricator via cfe-commits]

Bigcheese added a comment.

Looks fine to me, but it would be good for a Swift person to look at this patch.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D97702/new/

https://reviews.llvm.org/D97702