Dynamic -> dynamic.

sdk/lib/core/collection.dart

 // 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.
 
 /**
  * The common interface of all collections.
  *
  * The [Collection] class contains a skeleton implementation of
  * an iterator based collection.
  */
@@ skipping 45 matching lines @@
   /**
    * Reduce a collection to a single value by iteratively combining each element
    * of the collection with an existing value using the provided function.
    * Use [initialValue] as the initial value, and the function [combine] to
    * create a new value from the previous one and an element.
    *
    * Example of calculating the sum of a collection:
    *
    *   collection.reduce(0, (prev, element) => prev + element);
    */
-  Dynamic reduce(var initialValue,
-                 Dynamic combine(var previousValue, E element)) {
+  dynamic reduce(var initialValue,
+                 dynamic combine(var previousValue, E element)) {
     var value = initialValue;
     for (E element in this) value = combine(value, element);
     return value;
   }
 
   /**
    * Returns true if every elements of this collection satisify the
    * predicate [f]. Returns false otherwise.
    */
   bool every(bool f(E element)) {
@@ skipping 12 matching lines @@
       if (f(element)) return true;
     }
     return false;
   }
 
   /**
    * Returns true if there is no element in this collection.
    */
   bool get isEmpty => !iterator().hasNext;
 }