[libcxx-commits] [libcxx] [libc++] Drop -Wno-user-defined-literals when running the test suite (PR #167073)

[Nikolas Klauser via libcxx-commits]

https://github.com/philnik777 commented:

I think the general goal is great, but I'm not convinced these diagnostics are the right ones to enable. These seem to only cause false positives, and I can really imagine a case where we'd accidentally write a UDL that's reserved.

https://github.com/llvm/llvm-project/pull/167073