TBR (red build bot).

frog/utils.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.
 
 // Collection<T> supports most of the ES 5 Array methods, but it's missing
 // map and reduce.
 
 // TODO(jmesserly): we might want a version of this that return an iterable,
 // however JS, Python and Ruby versions are all eager.
 List map(Iterable source, mapper(source)) {
@@ skipping 34 matching lines @@
   }
   if (x.hasNext() || y.hasNext()) {
     throw new IllegalArgumentException();
   }
   return result;
 }
 
 /** Sorts the map by the key. */
 List orderValuesByKeys(Map map) {
   // TODO(jmesserly): it'd be nice to have SortedMap in corelib.
-  List keys = map.getKeys();
+  final keys = map.getKeys();
   keys.sort((x, y) => x.compareTo(y));
   final values = [];
   for (var k in keys) {
     values.add(map[k]);
   }
   return values;
 }
 
 /** True if this is a triple quoted Dart string literal. */
 bool isMultilineString(String text) {
@@ skipping 60 matching lines @@
   final int length;
   int _index = 0;
   FixedIterator(this.value, this.length);
 
   bool hasNext() => _index < length;
   E next() {
     _index++;
     return value;
   }
 }