Anonymous nogc class

[Jiyan via Digitalmars-d-learn]

Hey,
wanted to know whether it is possible to make anonymous nogc 
classes:

interface I
{
        public void ap();
}
void exec(I i)
{
        i.ap;
}

// now execute, but with something like `scope`
exec( new  class  I
{
        int tr = 43;
        override void ap(){tr.writeln;}
});

Thanks :)