Nvfunctional not compatible with MSC and C++20

[austin.perry1]

It appears that nvfunctional has logic that has not been updated to allow c++20 in all cases.

Specifically, see this snippet from the file.

#elif defined(_MSC_VER)
  // simulate VC 2013's behavior...
  template <class _F>
  struct __check_callability1
    : public 
        std::integral_constant<bool, 
          // std::result_of does not handle member pointers well 
          std::is_member_pointer<_F>::value ||
          std::is_convertible<
            _RetType,
            typename std::result_of<_F(_ArgTypes...)>::type
          >::value
        >
  { };

This results in an error pointing out that std has no member result_of as it has been removed in c++20.

Steps to reproduce:

CUDA: 12.4
OS: Windows
IDE: Visual Studio 2022 v17.9.4

1. Create a new CUDA 12.4 Runtime project from the template of the same name.
2. Ensure that the provided kernel.cu file is properly configured as a CUDA C/C++ file in visual studio (should be by default)
3. Replace the contents of kernel.cu with just the following

#include <nvfunctional>

int main()
{
    return 0;
}

4. Update to c++20 in the standard settings.
   
   
5. Update to c++20 in the CUDA C/C++ settings by adding --std c++20 to the Additional Options in CUDA C/C++ > Command Line.
6. Build

Note this this works fine if things are configured for c++17.