[libcxx-commits] [libcxx] [libc++][test][msan] Fix bots after #67799 (PR #73152)

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huixie90 wrote:

> > maybe msan on aarch64 is bit different?
> 
> 4 of UNSUPPORTED tests are there because of x86_64 Ubuntu build.

Is the hanging on x86_64 or aarch64?

https://github.com/llvm/llvm-project/pull/73152