[PATCH] D79998: Add AST_SIGNATURE record to unhashed control block of pcm files (Patch series 2/3)

[Daniel Grumberg via Phabricator via cfe-commits]

dang created this revision.
dang added a reviewer: Bigcheese.
Herald added subscribers: cfe-commits, dexonsmith.
Herald added a project: clang.

This lets users of PCM get a clean hash of the AST for uniquing based
on that. This required looking up implicit modules in the module offset map to
be looked up by name instead of by file path.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D79998

Files:
  clang/include/clang/Serialization/ASTBitCodes.h
  clang/include/clang/Serialization/ASTWriter.h
  clang/include/clang/Serialization/ModuleFile.h
  clang/lib/Serialization/ASTReader.cpp
  clang/lib/Serialization/ASTWriter.cpp

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