[ 2022-11-01; Reflector poll ]

Set priority to 3 after reflector poll. "This affects the exports of std.compat".

See also LWG 3782. Like lerp, neither <math.h> nor C compatibility is mentioned in P0030R1, and MSVC STL decides not to declare 3-argument hypot overloads in the global namespace (perhaps so does libc++).

Perhaps we should also avoid providing these overloads in the global namespace. However, such change seems a bit difficult for libstdc++'s <math.h>.