ShrinkAreaHead
virtual status_t ShrinkAreaHead(VMArea* area, size_t newSize,
virtual status_t ShrinkAreaHead(VMArea* area, size_t newSize,
status_t error = ShrinkAreaHead(next, next->Size() - offset,
virtual status_t ShrinkAreaHead(VMArea* area, size_t newSize,
status_t error = addressSpace->ShrinkAreaHead(area, area->Size() - size,