[PATCH] D66574: [lit] Make internal diff work in pipelines

[Joel E. Denny via Phabricator via llvm-commits]

jdenny updated this revision to Diff 216971.
jdenny marked an inline comment as done.
jdenny edited the summary of this revision.
jdenny added a comment.

I made several changes:

- Added missing `functools`




CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D66574/new/

https://reviews.llvm.org/D66574

Files:
  llvm/utils/lit/lit/TestRunner.py
  llvm/utils/lit/lit/builtin_commands/diff.py
  llvm/utils/lit/tests/Inputs/shtest-shell/diff-error-0.txt
  llvm/utils/lit/tests/Inputs/shtest-shell/diff-pipes.txt
  llvm/utils/lit/tests/shtest-shell.py

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