[PATCH] D151581: [clang][modules] NFCI: Distinguish written/effective umbrella directories

[Jan Svoboda via Phabricator via cfe-commits]

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For modules with umbrellas, we track how they were written in the module map. Unfortunately, the getter for the umbrella directory conflates the "as written" directory and the "effective" directory (either the written one or the parent of the written umbrella header).

This patch makes the distinction between "as written" and "effective" umbrella directories clearer. No functional change intended.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D151581

Files:
  clang/include/clang/Basic/Module.h
  clang/include/clang/Lex/ModuleMap.h
  clang/lib/Basic/Module.cpp
  clang/lib/Frontend/FrontendAction.cpp
  clang/lib/Lex/ModuleMap.cpp
  clang/lib/Lex/PPLexerChange.cpp
  clang/lib/Serialization/ASTReader.cpp
  clang/lib/Serialization/ASTWriter.cpp

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