[PATCH] D59377: Frontend: Remove CompilerInstance::VirtualFileSystem, NFC

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

dexonsmith created this revision.
Herald added subscribers: jdoerfert, kadircet, arphaman, jkorous.

Remove CompilerInstance::VirtualFileSystem and
CompilerInstance::setVirtualFileSystem, instead relying on the VFS in
the FileManager.  CompilerInstance and its clients already went to some
trouble to make these match.  Now they are guaranteed to match.

As part of this, I added a VFS parameter (defaults to nullptr) to
CompilerInstance::createFileManager to avoid repeating construction
logic in clients that just want to customize the VFS.


https://reviews.llvm.org/D59377

Files:
  clang-tools-extra/clangd/Compiler.cpp
  clang/include/clang/Frontend/CompilerInstance.h
  clang/lib/Frontend/ASTUnit.cpp
  clang/lib/Frontend/CompilerInstance.cpp
  clang/lib/StaticAnalyzer/Frontend/ModelInjector.cpp
  lldb/source/Plugins/ExpressionParser/Clang/ClangExpressionParser.cpp
  lldb/source/Plugins/ExpressionParser/Clang/ClangModulesDeclVendor.cpp

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