gravity-lang/test/unittest/closure_bind.gravity

#unittest {
	name: "Closure bind.";
	result: 20;
};

class foo {
    var a = 10;
    
    func f1() {
        return a;
    }
}

func main() {
    var c = foo();
    
    var f1 = c.f1;
    f1.bind(c);
    
    return f1() + c.f1();
}