| Index: sdk/lib/io/buffer_list.dart
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| diff --git a/sdk/lib/io/buffer_list.dart b/sdk/lib/io/buffer_list.dart
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| index c61710f2fd20ca1b75e79e0079d1da6df5f87587..eab260b338936f0025595b8fa7fd02da2fb91dbf 100644
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| --- a/sdk/lib/io/buffer_list.dart
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| +++ b/sdk/lib/io/buffer_list.dart
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| @@ -83,6 +83,11 @@ class _BufferList {
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|    bool get isEmpty => _length == 0;
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|  
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|    /**
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| +   * Returns whether the buffer list is not empty.
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| +   */
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| +  bool get isNotEmpty => !isEmpty;
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| +
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| +  /**
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|     * Clears the content of the buffer list.
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|     */
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|    void clear() {
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| 
 |