[PATCH] D121175: [clang] Add -Wstart-no-unknown-warning-option/-Wend-no-unknown-warning-option.

[Fangrui Song via Phabricator via cfe-commits]

MaskRay added a comment.

I am also unsure about the usefulness.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D121175/new/

https://reviews.llvm.org/D121175