[libcxx-commits] [libcxx] [libc++][test] Updates sized deallocation tests. (PR #97833)

[Martin Storsjö via libcxx-commits]

mstorsjo wrote:

This isn't quite right for all platforms. Yes, #90373 did enable sized deallocation on all platforms except z/OS (and Darwin, when targeting older versions). Since #97076 and #97232, we also disabled it for AIX and MinGW. So this PR breaks running the libcxx tests with a fresh clang-19 on these platforms.

I guess the right thing to do here is to add `// UNSUPPORTED` for those platforms, in these tests?

https://github.com/llvm/llvm-project/pull/97833