[clang] [lldb] [Clang] Introduce OverflowBehaviorType for fine-grained overflow control (PR #148914)

[Justin Stitt via cfe-commits]

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@@ -339,6 +389,8 @@ ConvertTypeToDiagnosticString(ASTContext &Context, QualType Ty,
          << "' " << Values << ")";
       return DecoratedString;
     }
+
+    TryConvertOverflowBehaviorTypeToDiagnosticString(Context, Ty, S);
----------------
JustinStitt wrote:

OK, so should I drop this special handling and store it in a different branch for another time? FYI, if we go with pure attribute printing there will be a lot of churn in my tests as they all have the short-hand types.

BTW, I think we decided not to go with making `__wrap` and `__no_wrap` keywords as maybe some projects already use these from the preprocessor? I am not sure on any precedence between when to make something attribute-only v.s. when to introduce a keyword.

https://github.com/llvm/llvm-project/pull/148914