[PATCH] D121588: [C++20][Modules][Driver][HU 1/N] Initial handling for -xc++-{system,user}-header.

[Iain Sandoe via Phabricator via cfe-commits]

iains added a comment.

note: I do not plan to fix the formatting issue in clang/lib/Driver/Types.cpp, since I am adding one line and the format change would mean ≈ 110 lines of changes.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D121588/new/

https://reviews.llvm.org/D121588