[clang] [clang] remove ClassScopeFunctionSpecializationDecl (PR #66636)

[Krystian Stasiowski via cfe-commits]

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@@ -752,8 +745,6 @@ class CollectExtraHighlightings
     }
     if (auto *Args = D->getTemplateSpecializationArgsAsWritten())
       H.addAngleBracketTokens(Args->getLAngleLoc(), Args->getRAngleLoc());
-    if (auto *I = D->getDependentSpecializationInfo())
-      H.addAngleBracketTokens(I->getLAngleLoc(), I->getRAngleLoc());
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sdkrystian wrote:

@AaronBallman With this patch we store the template arguments as written in `DependentFunctionTemplateSpecializationInfo::TemplateArgsAsWritten`, and `FunctionDecl::getTemplateSpecializationArgsAsWritten` is updated to return the stored `ASTTemplateArgumentListInfo`. Therefore, the two lines above handle the arguments list for dependent function template specializations.

https://github.com/llvm/llvm-project/pull/66636