[PATCH] D23965: Add StringRef::keep_front() and StringRef::keep_back()

[Zachary Turner via llvm-commits]

zturner updated this revision to Diff 69500.
zturner added a comment.

Added the same functions for `ArrayRef` and `MutableArrayRef`


https://reviews.llvm.org/D23965

Files:
  include/llvm/ADT/ArrayRef.h
  include/llvm/ADT/StringRef.h
  unittests/ADT/ArrayRefTest.cpp
  unittests/ADT/StringRefTest.cpp

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