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

[Matheus Izvekov via cfe-commits]

mizvekov wrote:

> I'm getting conflicting ideas from this sentence. Do you mean to say that the two types from your example should be the _same_ type?

Yes.

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