class Main
{
    public static function main()
    {

        var t = new Test();

        var foo = new Foo();
        foo.check(t);

        var test = new Test();
        test.check(t);
    }
}

class Foo
{
    public function new(){}

    public function check(t:Test)
    {
        t.test();//works as expected :Cannot access to private field test
    }
}

class Test
{
    public function new(){}

    public function check(t:Test)
    {
        t.test();//does NOT work as expected:  should NOT have access to private field test
    }

    private function test(){}
}