Implement P2674R1 is_implicit_lifetime for MSVC and EDG #5738
Description
Followup to #3445.
#5445 is implementing WG21-P2674R1 is_implicit_lifetime for Clang 20. When the necessary builtin becomes available for MSVC and EDG, we should extend the implementation accordingly. I've filed:
- VSO-2581622 C1XX should implement
__builtin_is_implicit_lifetime- Implemented by MSVC-PR-675420 for MSVC Compiler 19.51 Preview 1.
- VSO-2581623 EDG should implement
__builtin_is_implicit_lifetime