Create a new TAVLTreeNode instance.
Source position: avl_tree.pp line 196
| public function TAVLTreeNodeMemManager.NewNode: TAVLTreeNode; override; | 
The new node.
NewNode returns a new TAVLTreeNode instance. If there is a node in the free list, it is returned. If no more free nodes are present, a new node is created.
| 
 | Return a node to the free list. |