[PATCH] D92983: SourceManager: Migrate to FileEntryRef in getOrCreateContentCache, NFC

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

dexonsmith created this revision.
dexonsmith added reviewers: arphaman, jansvoboda11.
Herald added a subscriber: ributzka.
dexonsmith requested review of this revision.
Herald added a project: clang.

Change `SourceManager::getOrCreateContentCache` to take a `FileEntryRef`
and update call sites (mostly internal to SourceManager.cpp). In a
couple of cases this temporarily relies on `FileEntry::getLastRef`, but
those can be cleaned up once other APIs switch over.

The one change outside of SourceManager.cpp is in ASTReader.cpp, which
stops relying on the auto-degrade-to-`FileEntry*` behaviour from
`InputFile::getFile` since it now needs a `FileEntryRef`.

No functionality change here.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D92983

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

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