[libcxx-commits] [libcxx] [libcxx][test] Change UNSUPPORTED to XFAIL for target-related failures (PR #81513)

[Abhina Sree via libcxx-commits]

abhina-sree wrote:

> It looks like we have a few XPASSes on macOS back-deployment too!
> 
> ```
> apple-libc++-backdeployment.cfg.in :: std/thread/futures/futures.async/async_race.38682.pass.cpp
> apple-libc++-backdeployment.cfg.in :: std/thread/thread.condition/notify_all_at_thread_exit_lwg3343.pass.cpp
> apple-libc++-backdeployment.cfg.in :: std/utilities/format/format.range/format.range.fmtstr/format.pass.cpp
> apple-libc++-backdeployment.cfg.in :: std/utilities/format/format.range/format.range.fmtstr/parse.pass.cpp
> ```
> 
> `std/thread/futures/futures.async/async_race.38682.pass.cpp` should stay `UNSUPPORTED`, since it looks like this test may or may not actually fail, it tries to reproduce a race condition.
> 
> `std/thread/thread.condition/notify_all_at_thread_exit_lwg3343.pass.cpp` is in the same kind of situation.
> 
> The other two `format` tests seem to have been marked as `UNSUPPORTED` via copy-paste, they don't need to be marked as such I think.

Thanks, I've removed the UNSUPPORTED label from the format tests as well. 

https://github.com/llvm/llvm-project/pull/81513