[PATCH] D66713: ContentCache: Drop getBuffer's dependency on SourceManager

[Duncan P. N. Exon Smith via Phabricator via cfe-commits]

dexonsmith created this revision.
dexonsmith added reviewers: arphaman, bruno.
Herald added a subscriber: ributzka.

Refactor ContentCache::IsSystemFile to IsFileVolatile, checking
SourceManager::userFilesAreVolatile at construction time.  This is a
step toward lowering ContentCache down from SourceManager to
FileManager.

No functionality change intended.


https://reviews.llvm.org/D66713

Files:
  clang/include/clang/Basic/SourceManager.h
  clang/lib/Basic/SourceManager.cpp
  clang/lib/Serialization/ASTWriter.cpp

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