[libcxx-commits] [libcxx] [libc++][test] Enhance `ADDITIONAL_COMPILE_FLAGS` to work with MSVC (PR #74974)

[Stephan T. Lavavej via libcxx-commits]

StephanTLavavej wrote:

I think I can prepare an alternative PR to use the macros everywhere. It'll take a bit of time, but I've already done the hard work here of figuring out which files need to suppress which MSVC warnings.

https://github.com/llvm/llvm-project/pull/74974