[all-commits] [llvm/llvm-project] 7b492d: [clang][deps] Teach dep directive scanner about #p...

[Ben Langmuir via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 7b492d1be0ea5b767cc567ca2792a291242f9973
      https://github.com/llvm/llvm-project/commit/7b492d1be0ea5b767cc567ca2792a291242f9973
  Author: Ben Langmuir <blangmuir at apple.com>
  Date:   2023-05-03 (Wed, 03 May 2023)

  Changed paths:
    M clang/include/clang/Lex/DependencyDirectivesScanner.h
    M clang/lib/Lex/DependencyDirectivesScanner.cpp
    M clang/lib/Lex/Lexer.cpp
    M clang/unittests/Lex/DependencyDirectivesScannerTest.cpp

  Log Message:
  -----------
  [clang][deps] Teach dep directive scanner about #pragma clang system_header

This ensures we get the correct FileCharacteristic during scanning. In a
yet-to-be-upstreamed branch this fixes observable failures, but it's
also good to handle this on principle: the FileCharacteristic is a
property of the file that is observable in the scanner, so there is
nothing preventing us from depending on it.

rdar://108627403

Differential Revision: https://reviews.llvm.org/D149777