[libc++] Use `__reference_constructs_from_temporary` if eligible (#141916)
Currently, libc++'s `<tuple>` is using the deprecated
`__reference_binds_to_temporary` intrinsic. This PR starts to use
`__reference_constructs_from_temporary` if possible.
It seems that `__reference_constructs_from_temporary` should be used via
an internal type traits provided in
`<__type_traits/reference_constructs_from_temporary.h>`. But given the
old intrinsic was directly used, this PR doesn't switch to the current
convention yet.
P2255R2 is related. Although the paper indicated that constructors of
`tuple` should be deleted in such a case.
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Co-authored-by: Nikolas Klauser <nikolasklauser@berlin.de>
GitOrigin-RevId: 437ad06f762ab07d89badecdd20627db200b98d3
4 files changed
