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

pkg/unittest/lib/src/description.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;
 
 /**
  * The default implementation of IDescription. This should rarely need
  * substitution, although conceivably it is a place where other languages
  * could be supported.
  */
 class StringDescription implements Description {
   var _out;
 
   /** Initialize the description with initial contents [init]. */
@@ skipping 53 matching lines @@
     return this;
   }
 
   /** Escape the control characters in [string] so that they are visible. */
   _addEscapedString(String string) {
     add("'");
     add(escapeString(string));
     add("'");
   }
 }