[clang] [clang] Improve diagnostics for invalid named-universal-characters (PR #206326)

[Jan Schultke via cfe-commits]

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@@ -1085,6 +1085,26 @@ void clang::EscapeStringForDiagnostic(StringRef Str,
   }
 }
 
+/// DisplayCodePointForDiagnostic - Display CodePoint in U+NNNN notation,
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eisenwave wrote:

There are a whole bunch of functions above that do the same thing of repeating the name in the comment. Do we not care about local consistency here?

I agree that generally it would be weird to repeat the name.

https://github.com/llvm/llvm-project/pull/206326