[libcxx-commits] [libcxx] [libc++][type_traits] Implements "A type trait to detect reference binding to temporary" (PR #128649)

[A. Jiang via libcxx-commits]

https://github.com/frederick-vs-ja approved this pull request.

LGTM!

Some stuffs in the test code are confusing, but I think we can do the cleanup later.

https://github.com/llvm/llvm-project/pull/128649