Don't use ReversedListView from outside core and collection.

tools/dom/templates/immutable_list_mixin.darttemplate

Index: tools/dom/templates/immutable_list_mixin.darttemplate
diff --git a/tools/dom/templates/immutable_list_mixin.darttemplate b/tools/dom/templates/immutable_list_mixin.darttemplate
index 3a09ac50273d94ae73545c1c1ff709948766f6f9..00709742ae4e60ec76d76ee6b20efbb6c494cb8f 100644
--- a/tools/dom/templates/immutable_list_mixin.darttemplate
+++ b/tools/dom/templates/immutable_list_mixin.darttemplate
@@ -100,8 +100,9 @@ $else
   // clear() defined by IDL.
 $endif
 
-  List<$E> get reversed =>
-      new ReversedListView<$E>(this, 0, null);
+  List<$E> get reversed {
+    return IterableMixinWorkaround.reversedList(this);
+  }
 
   void sort([int compare($E a, $E b)]) {
     throw new UnsupportedError("Cannot sort immutable List.");