[libcxx-commits] [libcxxabi] [libc++abi] Always use thread_local for cxa_exception_storage (PR #79868)

[Louis Dionne via libcxx-commits]

ldionne wrote:

Actually, I can just switch to `__has_feature(cxx_thread_local)` instead.

https://github.com/llvm/llvm-project/pull/79868