[PATCH] D53768: Add VerboseOutputStream to CompilerInstance

[Scott Linder via Phabricator via cfe-commits]

scott.linder created this revision.
scott.linder added a reviewer: rsmith.
Herald added a subscriber: cfe-commits.

An attempt at removing one instance of a hardcoded output stream in `CompilerInstance::ExecuteAction`. There are still other cases of output being hard-coded to standard streams in `ExecuteCompilerInvocation`, but this patch attempts to cover some cases when no specific flags (e.g. -version or -help) are passed, namely the "X warnings and Y errors generated." diagnostic.


Repository:
  rC Clang

https://reviews.llvm.org/D53768

Files:
  include/clang/Frontend/CompilerInstance.h
  lib/Frontend/CompilerInstance.cpp
  unittests/Frontend/OutputStreamTest.cpp

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