[clang] [Clang] Make the result type of sizeof/pointer subtraction/size_t lit… (PR #136542)

[Aaron Ballman via cfe-commits]

AaronBallman wrote:

Yeah, sorry, I feel I accidentally derailed the conversation by talking about new types. :-) Are we converging on the idea of using type sugar?

https://github.com/llvm/llvm-project/pull/136542