Commented some logging that could be '''very''' long, cuts -vv output size of a gtkd gl sample down 1.2GB by 3/4. Fixed wrong pointer type for multidimension "deep" slicing.

module nested1;

void func(int i)
{
    (){
        assert(i == 3);
    }();
}

void main()
{
    func(3);
}