result_of cannot handle member function pointer to __cdecl function

[Kojoley]

Might be a root cause of boostorg/phoenix#81

#include <functional>
#include <boost/utility/result_of.hpp>

struct X
{
    bool __cdecl f();
};

using F = decltype(&X::f);

using A = std::result_of<F(X*)>::type;   // fine
using B = boost::result_of<F(X*)>::type; // fails

https://godbolt.org/z/WGMKezqd7

There should be much more of these calling convention stuff that will brakes result of, see https://github.com/boostorg/type_traits/blob/30396ed792697b5a5a7c4f02f7e22ae8d6ad95fd/include/boost/type_traits/detail/is_member_function_pointer_cxx_11.hpp