test rename overhaul: step 6 - isolate tests

tests/isolate/isolate_negative_test.dart

 // Copyright (c) 2011, 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.
 
 // Dart test program for testing that isolates are spawned.
 
 #library('IsolateNegativeTest');
 #import('dart:isolate');
-#import('../../../lib/unittest/unittest.dart');
+#import('../../lib/unittest/unittest.dart');
 
 class IsolateNegativeTest extends Isolate {
   IsolateNegativeTest() : super();
 
   void main() {
     this.port.receive((ignored, replyTo) {
       replyTo.send("foo", null);
     });
   }
 }
 
 main() {
   test("ensure isolate code is executed", () {
     new IsolateNegativeTest().spawn().then(expectAsync1((SendPort port) {
       port.call("foo").then(expectAsync1((message) {
         Expect.equals(true, "Expected fail");   // <=-------- Should fail here.
       }));
     }));
   });
 }