Added new version of reduce.

runtime/lib/growable_array.dart

 // Copyright (c) 2012, 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.
 
 class _GrowableObjectArray<T> implements List<T> {
   factory _GrowableObjectArray._uninstantiable() {
     throw new UnsupportedError(
         "GrowableObjectArray can only be allocated by the VM");
   }
 
@@ skipping 190 matching lines @@
     if (length > 0) return this[length - 1];
     throw new StateError("No elements");
   }
 
   T get single {
     if (length == 1) return this[0];
     if (length == 0) throw new StateError("No elements");
     throw new StateError("More than one element");
   }
 
-  T min([int compare(T a, T b)]) => IterableMixinWorkaround.min(this, compare);
-
-  T max([int compare(T a, T b)]) => IterableMixinWorkaround.max(this, compare);
-
   int indexOf(T element, [int start = 0]) {
     return IterableMixinWorkaround.indexOfList(this, element, start);
   }
 
   int lastIndexOf(T element, [int start = null]) {
     return IterableMixinWorkaround.lastIndexOfList(this, element, start);
   }
 
   void _grow(int new_length) {
     var new_data = new _ObjectArray(new_length);
@@ skipping 32 matching lines @@
         buffer.write("${this[i]}");
       }
     }
     return buffer.toString();
   }
 
   Iterable map(f(T element)) {
     return IterableMixinWorkaround.mapList(this, f);
   }
 
-  reduce(initialValue, combine(previousValue, T element)) {
-    return IterableMixinWorkaround.reduce(this, initialValue, combine);
+  T reduce(T combine(T value, T element)) {
+    return IterableMixinWorkaround.reduce(this, combine);
   }
 
   fold(initialValue, combine(previousValue, T element)) {
     return IterableMixinWorkaround.fold(this, initialValue, combine);
   }
 
   Iterable<T> where(bool f(T element)) {
     return IterableMixinWorkaround.where(this, f);
   }
 
@@ skipping 68 matching lines @@
   }
 
   Set<T> toSet() {
     return new Set<T>.from(this);
   }
 
   Map<int, T> asMap() {
     return IterableMixinWorkaround.asMapList(this);
   }
 }