#unittest {
	name: "Chained call.";
	result: 20;
};

func f1() {
	return 10;
}

func f2() {
	return f1;
}

func main() {
	var a = f2;				// a is now function f2
	var b = a();			// b is now return value of f2 which is function f1
	return b() + f2()();	// return value is f1() which is 10
}