[PATCH] D31171: Improve StringMap iterator support.

[Zachary Turner via Phabricator via llvm-commits]

zturner updated this revision to Diff 92507.
zturner added a comment.

1. Fixed issue with returning by value from `operator*`.
2. Moved the test from Support to ADT, since there was already an existing `StringMapTest` class there that I hadn't noticed.
3. Removed the `join` changes that had snuck in.  I'll commit those separately.


https://reviews.llvm.org/D31171

Files:
  llvm/include/llvm/ADT/STLExtras.h
  llvm/include/llvm/ADT/StringMap.h
  llvm/unittests/ADT/StringMapTest.cpp

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