Make getKeys, getValues getters (keys, values).

lib/coreimpl/splay_tree.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.
 
 /**
  * A node in a splay tree. It holds the key, the value and the left
  * and right children in the tree.
  */
 class SplayTreeNode<K, V> {
   SplayTreeNode(K this.key, V this.value);
@@ skipping 204 matching lines @@
   bool containsValue(V value) {
     bool found = false;
     bool visit(SplayTreeNode node) {
       if (node === null) return false;
       if (node.value == value) return true;
       return visit(node.left) || visit(node.right);
     }
     return visit(_root);
   }
 
-  Collection<K> getKeys() {
+  Collection<K> get keys {
     List<K> list = new List<K>();
     forEach((K k, V v) { list.add(k); });
     return list;
   }
 
-  Collection<V> getValues() {
+  Collection<V> get values {
     List<V> list = new List<V>();
     forEach((K k, V v) { list.add(v); });
     return list;
   }
 
   String toString() {
     return Maps.mapToString(this);
   }
 
   /**
@@ skipping 55 matching lines @@
       if (node.key.compareTo(key) > 0) {
         return visit(node.left, node.key);
       }
       if (node.key.compareTo(key) <= 0) {
         return visit(node.right, ifEmpty);
       }
     }
     return visit(_root, null);
   }
 }