}

	for i, v := range ret {
		if v.CanAddr() {
			t.Errorf("result %d is addressable", i)
		}
	}
}

func TestCallConvert(t *testing.T) {
	v := ValueOf(new(io.ReadWriter)).Elem()
	f := ValueOf(func(r io.Reader) io.Reader { return r })
	out := f.Call([]Value{v})