Function emacs::make_function

#[no_mangle]
pub extern "C" fn make_function(
    env: *mut emacs_env, 
    min_args: i64, 
    max_args: i64, 
    f: EmacsFunction, 
    doc: String, 
    user_ptr: *mut c_void
) -> *mut Struct_emacs_value_tag