[clang] [clang] check deduction consistency when partial ordering function templates (PR #100692)

[Luke Lau via cfe-commits]

lukel97 wrote:

I just checked and gcc-13 is able to build that SPEC benchmark fine, so I think you're right there's probably some macro somewhere. I'll go digging for around for it.

https://github.com/llvm/llvm-project/pull/100692