[PATCH] D30893: [Support][CommandLine] Make it possible to get error messages from ParseCommandLineOptions when ignoring errors.

[Eric Liu via Phabricator via llvm-commits]

ioeric created this revision.

Previously, ParseCommandLineOptions returns false and ignores error messages
when IgnoreErrors. It would be useful to also return error messages if users
decide to check parsing result instead of having the program exit on error.


https://reviews.llvm.org/D30893

Files:
  include/llvm/Support/CommandLine.h
  lib/Support/CommandLine.cpp
  unittests/Support/CommandLineTest.cpp

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