[PATCH] D80263: [HeaderSearch] Fix processing #import-ed headers multiple times with modules enabled.

[Volodymyr Sapsai via Phabricator via cfe-commits]

vsapsai updated this revision to Diff 282035.
vsapsai added a comment.

Rebased the change to make sure it still works.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D80263/new/

https://reviews.llvm.org/D80263

Files:
  clang/lib/Lex/HeaderSearch.cpp
  clang/test/Modules/Inputs/import-once/ImportOnce.framework/Headers/ImportOnce.h
  clang/test/Modules/Inputs/import-once/ImportOnce.framework/Modules/module.modulemap
  clang/test/Modules/Inputs/import-once/IndirectImporter.framework/Headers/IndirectImporter.h
  clang/test/Modules/Inputs/import-once/IndirectImporter.framework/Modules/module.modulemap
  clang/test/Modules/Inputs/import-once/Unrelated.framework/Headers/Unrelated.h
  clang/test/Modules/Inputs/import-once/Unrelated.framework/Modules/module.modulemap
  clang/test/Modules/import-once.m

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