func_declaration.gravity

#unittest {
	name: "Test function declaration.";
	note: "Crash in f1 with 'return a+b;'"
	result: 30;
};

func f1() {
	var a, b;
	var c = func() {return 10;};
	
	a = 10;
	b = 20;
	return c();
}

func main() {
	var a = 10;
	const b = 20;
	return a + b;
}