Force another diagnostic reporting path to be warn-only on Windows.

tools/clang/plugins/ChromeClassTester.cpp

Index: tools/clang/plugins/ChromeClassTester.cpp
diff --git a/tools/clang/plugins/ChromeClassTester.cpp b/tools/clang/plugins/ChromeClassTester.cpp
index e9a0bcac479cae3b7d87a100f87a1b5f9c812504..0f2455c0a6c154fd5ffa513bf96f791b458f30d7 100644
--- a/tools/clang/plugins/ChromeClassTester.cpp
+++ b/tools/clang/plugins/ChromeClassTester.cpp
@@ -96,8 +96,10 @@ void ChromeClassTester::emitWarning(SourceLocation loc,
   err = "[chromium-style] ";
   err += raw_error;
   DiagnosticIDs::Level level =
+#if !defined(LLVM_ON_WIN32)

[Nico, 2015/04/16 18:23:29]

maybe add a '// TODO: make error on warning on win once clean' with a link to
the plugin bug (or a new bug if you want to use the plugin bug only for enabling
the plugin, not the cleanup)

       diagnostic().getWarningsAsErrors() ?
       DiagnosticIDs::Error :
+#endif
       DiagnosticIDs::Warning;
   unsigned id = diagnostic().getDiagnosticIDs()->getCustomDiagID(level, err);
   DiagnosticBuilder builder = diagnostic().Report(full, id);