Cleanup: Replace F_file_open_not with F_file_closed, add additional status codes...

Cleanup: Replace F_file_open_not with F_file_closed, add additional status codes for consistencies

Socket was not fully converted into basic status codes (not having connect).
I can see future work in sockets whee I may actually add connect codes back, but I won't know until I spend dedicate time on it.

Add additional status codes that should probably exist for consistency purposes.

With F_file_open_not removed, split behavior into two checks:
- F_file for file descriptor errors.
- F_file_closed for file not open errors.