Revert "Wrote functions to convert collections and maps to strings and invoked"

runtime/lib/array.dart

Index: runtime/lib/array.dart
diff --git a/runtime/lib/array.dart b/runtime/lib/array.dart
index 0e0ff11a9e3b42d7a7d62d0e5673ee61c10b8b89..b161e186efda130f0944628b754fb08c75cdc4a2 100644
--- a/runtime/lib/array.dart
+++ b/runtime/lib/array.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
@@ -31,7 +31,7 @@ class ObjectArray<E> implements List<E> {
   void operator []=(int index, E value) native "ObjectArray_setIndexed";
 
   String toString() {
-    return Collections.collectionToString(this);
+    return Arrays.asString(this);
   }
 
   int get length() native "ObjectArray_getLength";
@@ -238,7 +238,7 @@ class ImmutableArray<E> implements List<E> {
   }
 
   String toString() {
-    return Collections.collectionToString(this);
+    return Arrays.asString(this);
   }
 
   int indexOf(E element, [int start = 0]) {