Replace custom EngineTestCase.assertEquals() with 'unorderedEquals'.

pkg/analyzer/test/generated/utilities_test.dart

 // Copyright (c) 2014, 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.
 
 // This code was auto-generated, is not intended to be edited, and is subject to
 // significant change. Please see the README file for more information.
 
 library engine.utilities_test;
 
 import 'dart:collection';
@@ skipping 2384 matching lines @@
     DirectedGraph<DirectedGraphTest_Node> graph =
         new DirectedGraph<DirectedGraphTest_Node>();
     graph.addEdge(node1, node2);
     graph.addEdge(node2, node1);
     graph.addEdge(node1, node3);
     graph.addEdge(node3, node4);
     graph.addEdge(node4, node3);
     List<List<DirectedGraphTest_Node>> topologicalSort =
         graph.computeTopologicalSort();
     expect(topologicalSort, hasLength(2));
-    EngineTestCase.assertContains(topologicalSort[0], [node3, node4]);
-    EngineTestCase.assertContains(topologicalSort[1], [node1, node2]);
+    expect(topologicalSort[0], unorderedEquals([node3, node4]));
+    expect(topologicalSort[1], unorderedEquals([node1, node2]));
   }
 }
 
 /**
  * Instances of the class `Node` represent simple nodes used for testing purposes.
  */
 class DirectedGraphTest_Node {
 }
 
 class Getter_NodeReplacerTest_testAnnotatedNode implements
@@ skipping 2882 matching lines @@
   }
 
   void test_get_added() {
     TokenMap tokenMap = new TokenMap();
     Token key = TokenFactory.tokenFromType(TokenType.AT);
     Token value = TokenFactory.tokenFromType(TokenType.AT);
     tokenMap.put(key, value);
     expect(tokenMap.get(key), same(value));
   }
 }