Can't call the Callable type of a member class

[sgalles]

This code

shared void run(){  
    class Foo(){
        shared class Bar(){}
    }
    value t = Foo().Bar;
    print(t());
}

when executed :

                    if(bar$Foo$===undefined)bar$Foo$=new this.Bar$Foo.$$;
                                                                     ^
TypeError: Cannot read property '$$' of undefined