Reimplement (address -> code) mapping from tickprocessor.py in JS.

tools/splaytree.js

 // Copyright 2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 76 matching lines @@
     this.root_.right = null;
   } else {
     node.right = this.root_;
     node.left = this.root_.left;
     this.root_.left = null;
   }
   this.root_ = node;
 };
 
 
-
 /**
  * Removes a node with the specified key from the tree if the tree
  * contains a node with this key. The removed node is returned. If the
  * key is not found, an exception is thrown.
  *
  * @param {number} key Key to find and remove from the tree.
  * @return {goog.structs.SplayTree.Node} The removed node.
  */
 goog.structs.SplayTree.prototype.remove = function(key) {
   if (this.isEmpty()) {
@@ skipping 205 matching lines @@
 /**
  * @type {goog.structs.SplayTree.Node}
  */
 goog.structs.SplayTree.Node.prototype.left = null;
 
 
 /**
  * @type {goog.structs.SplayTree.Node}
  */
 goog.structs.SplayTree.Node.prototype.right = null;