setFreeListSizeClassAndInUse(block, cell, sizeClass, cellsInUse[sizeClass]);
if (maintainInUse()) setFreeListSizeClassAndInUse(block, cell, sizeClass, cellsInUse[sizeClass]); else setFreeListAndSizeClass(block, cell, sizeClass);
  private final void flushFreeList(VM_Address block, int sizeClass,                                    VM_Address cell)     throws VM_PragmaInline {    setFreeListSizeClassAndInUse(block, cell, sizeClass, cellsInUse[sizeClass]);  }