unittest step 3 and 4: remove TestFramework.dart, make test.dart use

tests/isolate/src/Isolate3NegativeTest.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 errors thrown from isolates are
 // processed correctly and don't result in crashes.
 
 #library('Isolate3NegativeTest');
 #import('dart:isolate');
-#import('TestFramework.dart');
+#import('../../../lib/unittest/unittest.dart');
 
 class TestClass {
   TestClass.named(num this.fld1) : fld2=fld1 {
     TestClass.i = 0;  // Should cause a compilation error.
   }
   num fld1;
   num fld2;
 }
 
 class Isolate3NegativeTest extends Isolate {
   Isolate3NegativeTest() : super();
 
   void main() {
     this.port.receive((ignored, replyTo) {
       var tmp = new TestClass.named(10);
       replyTo.send(tmp, null);
     });
   }
 }
 
-void test(TestExpectation expect) {
-  void msg_callback(var message) {
-    // This test is a negative test and should not complete successfully.
-  }
-  void spawn_callback(SendPort port) {
-    port.call("foo").then(expect.runs1(msg_callback));
-  }
-  expect.completes(new Isolate3NegativeTest().spawn()).then(spawn_callback);
+main() {
+  test("child isolate compilation errors propagate correctly. ", () {
+    void msg_callback(var message) {
+      // This test is a negative test and should not complete successfully.
+    }
+    void spawn_callback(SendPort port) {
+      port.call("foo").then(expectAsync(msg_callback));
+    }
+    new Isolate3NegativeTest().spawn().then(expectAsync(spawn_callback));
+  });
 }
-
-main() {
-  runTests([test]);
-}