[clang] C++26 Annotation (PR #166287)

[A. Jiang via cfe-commits]

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@@ -4091,13 +4091,15 @@ EmitClangAttrTemplateInstantiateHelper(ArrayRef<const Record *> Attrs,
     for (auto const &ai : Args)
       ai->writeTemplateInstantiation(OS);
 
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frederick-vs-ja wrote:

CI failure indicated that we should emit `AS_Annotation` from this file (or `Attr.td`).

https://github.com/llvm/llvm-project/pull/166287