Renaming unittest parts- missed these when giving the libraries proper names.

pkg/unittest/lib/src/map_matchers.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.
 
-part of matcher;
+part of unittest.matcher;
 
 /**
  * Returns a matcher which matches maps containing the given [value].
  */
 Matcher containsValue(value) => new _ContainsValue(value);
 
 class _ContainsValue extends Matcher {
   final _value;
 
   const _ContainsValue(this._value);
@@ skipping 32 matching lines @@
           .addDescriptionOf(_key);
     } else {
       mismatchDescription.add(' contains key ').addDescriptionOf(_key).
           add(' but with value ');
       _valueMatcher.describeMismatch(item[_key], mismatchDescription,
           matchState, verbose);
       return mismatchDescription;
     }
   }
 }