| Index: sdk/lib/collection/splay_tree.dart
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| diff --git a/sdk/lib/collection/splay_tree.dart b/sdk/lib/collection/splay_tree.dart
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| index 1461cc6138c1ac77aa92c63654b6a88d1bf8add5..b959a55721e843a263c34c0816c8bc0bb55a17d7 100644
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| --- a/sdk/lib/collection/splay_tree.dart
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| +++ b/sdk/lib/collection/splay_tree.dart
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| @@ -313,6 +313,8 @@ class SplayTreeMap<K, V> extends _SplayTree<K> implements Map<K, V> {
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|      return (_root == null);
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|    }
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|  
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| +  bool get isNotEmpty => !isEmpty;
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| +
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|    void forEach(void f(K key, V value)) {
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|      Iterator<_SplayTreeNode<K>> nodes =
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|          new _SplayTreeNodeIterator<K>(this);
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| 
 |