[PATCH] D47060: [VFS] Implement getRealPath for OverlayFileSystem.

[Eric Liu via Phabricator via cfe-commits]

ioeric updated this revision to Diff 147491.
ioeric marked an inline comment as done.
ioeric added a comment.

- Add and use const_iterator.


Repository:
  rC Clang

https://reviews.llvm.org/D47060

Files:
  include/clang/Basic/VirtualFileSystem.h
  lib/Basic/VirtualFileSystem.cpp
  unittests/Basic/VirtualFileSystemTest.cpp

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