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 mini.norun_debug9;

struct Foo
{
    int a,b,c;

    void func()
    {
        int* fail;
        *fail = 0;
    }
}

void main()
{
    Foo foo = Foo(1,10,73);
    foo.func();
}