[PATCH] D23649: [ADT] Actually mutate the iterator VisitStack.back().second, not its copy.

[Tim Shen via llvm-commits]

timshen updated this revision to Diff 68756.
timshen marked an inline comment as done.
timshen added a comment.

Added a testcase.


https://reviews.llvm.org/D23649

Files:
  include/llvm/ADT/DepthFirstIterator.h
  unittests/ADT/CMakeLists.txt
  unittests/ADT/DepthFirstIteratorTest.cpp
  unittests/ADT/SCCIteratorTest.cpp
  unittests/ADT/TestGraph.h

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