More test fixes.

tests/compiler/dart2js_extra/deferred/deferred_class_test.dart

 // Copyright (c) 2013, 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.
 
 import 'dart:async';
 
 @lazy import 'deferred_class_library.dart';
 
 const lazy = const DeferredLibrary('deferred_class_library');
 
 isNoSuchMethodError(e) => e is NoSuchMethodError;
 
+class Expect {
+  static void isTrue(x) => expect.equals(true, x);
+  static void equals(expected, actual) {
+    if (expected != actual) {
+      throw "Not equal. Expected: $expected. Got: $actual";
+    }
+  }
+  static void throws(fun, [test]) {
+    try {
+      fun();
+    } catch (e) {
+      if (!test(e)) throw "doesn't satisfy exception test";
+      return;
+    }
+    throw "didn't throw";
+  }
+}
+
 main() {
   var x;
   Expect.throws(() { x = new MyClass(); }, isNoSuchMethodError);
   Expect.isNull(x);
   int counter = 0;
   lazy.load().then((bool didLoad) {
     Expect.isTrue(didLoad);
     Expect.equals(1, ++counter);
     print('deferred_class_library was loaded');
     x = new MyClass();
     Expect.equals(42, x.foo(87));
   });
   Expect.equals(0, counter);
   Expect.isNull(x);
   lazy.load().then((bool didLoad) {
     Expect.isFalse(didLoad);
     Expect.equals(2, ++counter);
     print('deferred_class_library was loaded');
     x = new MyClass();
     Expect.equals(42, x.foo(87));
   });
   Expect.equals(0, counter);
   Expect.isNull(x);
   Expect.throws(() { x = new MyClass(); }, isNoSuchMethodError);
   Expect.isNull(x);
 }