[clang] [clang] Avoid printing overly large integer/_BitInt numbers in static assertion failure diagnostics #71675 (PR #145053)

[Erich Keane via cfe-commits]

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@@ -17575,7 +17576,21 @@ static bool ConvertAPValueToString(const APValue &V, QualType T,
           break;
         }
       }
-      V.getInt().toString(Str);
+
+      llvm::APSInt vInt = V.getInt();
+      if (llvm::APSInt::compareValues(
+              vInt, llvm::APSInt::getUnsigned(
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erichkeane wrote:

This whole bit here is equivilent to: `isRepresentableByInt64`

https://github.com/llvm/llvm-project/pull/145053