fNextInsertHint
if ((area->Base() + area->Size()) == fNextInsertHint)
fNextInsertHint -= area->Size();
&& start <= fNextInsertHint && fNextInsertHint <= (end - size + 1)) {
start = fNextInsertHint;
fNextInsertHint = area->Base() + size;
addr_t fNextInsertHint;