[svn r354] Fix the regressions between [346] and [353] by making constructors and destructors outside classes fatal errors. Fix tests makefile and add minimize to gc.d.

module bug5;

struct hah {
    static hah f()
    {
        hah res;
        return res;
    }
    hah g()
    {
        return hah.init;
    }
}

void main()
{
}