[PATCH] D120540: [Driver] Enable to use C++20 modules standalone by -fcxx-modules

[Adrian Prantl via Phabricator via cfe-commits]

aprantl added a comment.

This patch broke a whole bunch tests in the LLDB testsuite. I'm trying to figure out what exactly the semantics of the change are, particularly on Darwin, where `-fmodules` doesn't imply `-fcxx-modules`.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D120540/new/

https://reviews.llvm.org/D120540