[PATCH] D111587: re-land: [clang] Fix absolute file paths with -fdebug-prefix-map

[Keith Smiley via Phabricator via cfe-commits]

keith added a comment.

This broke tests on windows (see the new parent revisions in the stack) otherwise the actual change's behavior, outside of the tests, is unchanged


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D111587/new/

https://reviews.llvm.org/D111587