[libcxx-commits] [libcxx] [libc++] Fix is_invocable_r with array and function result types (PR #234218)

[Louis Dionne via libcxx-commits]

ldionne wrote:

Playground where I noticed MSVC handles this correctly but libstdc++ doesn't: https://godbolt.org/z/PfsG5nhWj

https://github.com/llvm/llvm-project/pull/234218