Add support for running the profiler output processing scripts with node.

tools/consarray.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 72 matching lines @@
 
 /**
  * A cell object used for constructing a list in ConsArray.
  *
  * @constructor
  */
 ConsArray.Cell = function(data, next) {
   this.data = data;
   this.next = next;
 };
+
+// Node exports
+if (typeof module !== 'undefined' && module.exports) {
+  module.exports = ConsArray;
+}