_HTreeEntryTail
ext2_htree_tail* tail = _HTreeEntryTail(block, offset);
ext2_htree_tail* _HTreeEntryTail(uint8* block, uint16 offset) const;
ext2_htree_tail* tail = _HTreeEntryTail(block);
ext2_htree_tail* _HTreeEntryTail(uint8* block) const;