Use RUNTIME_ASSERT instead of CHECK in runtime.cc. ...

src/array.js

Index: src/array.js
===================================================================
--- src/array.js	(revision 224)
+++ src/array.js	(working copy)
@@ -31,16 +31,7 @@
 
 // -------------------------------------------------------------------
 
-// Determines if the array contains the element.
-function Contains(array, element) {
-  var length = array.length;
-  for (var i = 0; i < length; i++) {
-    if (array[i] === element) return true;
-  }
-  return false;
-};
 
-
 // Global list of arrays visited during toString, toLocaleString and
 // join invocations.
 var visited_arrays = new $Array();