[clang] [Headers][X86] Add specific results to comparisons (PR #83316)

[Simon Pilgrim via cfe-commits]

RKSimon wrote:

> @RKSimon note this will affect what the tooltips show. Is that okay?

I think so - we're just losing the extra info about -1/0 or 1/0 result values?

https://github.com/llvm/llvm-project/pull/83316