[PATCH] D97437: Rewrite MSVC toolchain discovery with VFS

[Nico Weber via Phabricator via cfe-commits]

thakis added a comment.

Re test: Maybe some combination of `-ivfsoverlay` (as a `/clang:` flag I suppose) and `/winsysroot` can be used to test this?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D97437/new/

https://reviews.llvm.org/D97437