[PATCH] D156948: [clang][modules] Add -Wsystem-headers-in-module=

[Ben Langmuir via Phabricator via cfe-commits]

benlangmuir created this revision.
benlangmuir added reviewers: jansvoboda11, iana.
Herald added a project: All.
benlangmuir requested review of this revision.
Herald added subscribers: cfe-commits, MaskRay.
Herald added a project: clang.

Add a way to enable -Wsystem-headers only for a specific module. This is useful for validating a module that would otherwise not see system header diagnostics without being flooded by diagnostics for unrelated headers/modules. It's relatively common for a module to be marked [system] but still wish to validate itself explicitly.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D156948

Files:
  clang/include/clang/Basic/DiagnosticOptions.h
  clang/include/clang/Driver/Options.td
  clang/lib/Driver/ToolChains/Clang.cpp
  clang/lib/Frontend/CompilerInstance.cpp
  clang/lib/Serialization/ASTReader.cpp
  clang/lib/Tooling/DependencyScanning/ModuleDepCollector.cpp
  clang/test/ClangScanDeps/Wsystem-headers-in-module.c
  clang/test/Modules/Wsystem-headers-in-module.c

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