[clang] [Clang] Implement CWG2517 Useless restriction on use of parameter in constraint-expression (PR #132919)

[Younan Zhang via cfe-commits]

zyn0217 wrote:

> CC @mizvekov since it was suggested this is related to https://github.com/llvm/llvm-project/issues/126550 and it looked like based on the conversation there, there was some existing work going on.

I think the crash I presented is independent of this DR. (This DR makes that the parameters are usable within an unevaluated requires context) while that crash has to do with the lambda context, which is what Mizvekov has been working on.


https://github.com/llvm/llvm-project/pull/132919