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

[Matheus Izvekov via cfe-commits]

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@@ -649,6 +649,10 @@ template <> const CountAttributedType *Type::getAs() const {
   return getAsSugar<CountAttributedType>(this);
 }
 
+template <> const OverflowBehaviorType *Type::getAs() const {
+  return getAsSugar<OverflowBehaviorType>(this);
+}
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mizvekov wrote:

The `OverflowBehaviorType` is never a sugar node, so you shouldn't have to provide this specialization.

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