[PATCH] D82630: [ObjectYAML][DWARF] Collect diagnostic message when YAMLParser fails.

[Xing GUO via Phabricator via llvm-commits]

Higuoxing created this revision.
Higuoxing added reviewers: jhenderson, grimar, MaskRay.
Herald added subscribers: llvm-commits, hiraditya, mgorny.
Herald added a project: LLVM.
Higuoxing edited the summary of this revision.

Before this patch, the diagnostic message is printed to `errs()` directly, which makes it difficult to use `FailedWithMessage()` in unit testing.
In this patch, we add a custom error handler for YAMLParser, which helps collect diagnostic messages and make it easy to use `FailedWithMessage()` to check error messages.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D82630

Files:
  llvm/lib/ObjectYAML/DWARFEmitter.cpp
  llvm/unittests/ObjectYAML/CMakeLists.txt
  llvm/unittests/ObjectYAML/DWARFYAMLTest.cpp

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