avl-tree--enter-balance
avl-tree--enter-balance is a compiled Lisp function in `avl-tree.el
'.
(avl-tree--enter-balance NODE BRANCH DIR)
Rebalance tree after an insertion
into the left (DIR=0) or right (DIR=1) sub-tree of the
left (BRANCH=0) or right (BRANCH=1) child of NODE.
Return t if the height of the tree has grown.