Fixed a critical bug in the runtime, where _d_allocmemoryT would mark the memory block as having pointers (for scanning) opposite of what it should. So pointers would not be seen and freed. Should fix a bunch of regressions with AAs.

module globals2;

template Bool(bool b)
{
    const bool Bool = b;
}

void main()
{
    assert(Bool!(true));
    assert(!Bool!(false));
}