Function emacs_module_bindings::make_function

#[no_mangle]
pub extern "C" fn make_function(
    env: *mut EmacsEnv, 
    min_args: i64, 
    max_args: i64, 
    f: Option<EmacsSubr>, 
    doc: &str, 
    user_ptr: *mut c_void
) -> EmacsVal