[clang] Add ParserConversionAction (PR #169803)

[Sergei Barannikov via cfe-commits]

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@@ -564,6 +564,9 @@ unsigned Parser::ParseAttributeArgsCommon(
               nullptr,
               Sema::ExpressionEvaluationContextRecord::EK_AttrArgument);
 
+          SaveAndRestore<ConversionAction> SavedTranslationState(
+              ParserConversionAction, CA_NoConversion);
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s-barannikov wrote:

I'm not sure this is necessary anymore.

String literals in attributes should be (and in most cases are) parsed as unevaluated string literals and thus should not be translated. Does the added test fail without these changes? If so, it might be worth looking why.


https://github.com/llvm/llvm-project/pull/169803