[libcxx-commits] [libcxx] [libcxx][test] Add feature for platforms where long double is double (PR #103903)

[A. Jiang via libcxx-commits]

frederick-vs-ja wrote:

Instead of add a platform feature, I think it's more flexible to add a macro to `test_macros.h`, which will make it easier to handle tests in `strong_order.pass.cpp`. Currently test cases for `long double` are unconditionally commented out, but they should be enabled for MSVC-like platforms.

https://github.com/llvm/llvm-project/pull/103903