r := make(S, len(s))
	for i, v := range s {
		r[i] = v + v
	}
	return r
}

// Test use of untyped constant in an expression with a generically-typed parameter
func _DoubleElems2[S _SliceOf[E], E Number](s S) S {
	r := make(S, len(s))
	for i, v := range s {
		r[i] = v * 2
	}
	return r
}

func main() {
	arg := MySlice{1, 2, 3}
	want := MySlice{2, 4, 6}