[clang] [clang-format] Fix a bug in annotating TrailingReturnArrow (PR #69249)

[Owen Pan via cfe-commits]

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@@ -3497,6 +3497,15 @@ void TokenAnnotator::calculateFormattingInformation(AnnotatedLine &Line) const {
           Tok->setType(TT_TrailingReturnArrow);
           break;
         }
+        if (Tok->isNot(TT_TrailingAnnotation))
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owenca wrote:

Because `TT_TrailingAnnotation` is only the known case that needs special handling.

https://github.com/llvm/llvm-project/pull/69249