Modified unittest to use new argument syntax.

tests/html/window_nosuchmethod_test.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.
 
 #library('WindowNSMETest');
 #import('../../pkg/unittest/unittest.dart');
 #import('../../pkg/unittest/html_config.dart');
 #import('dart:html', prefix: 'dom');
 
 // Not defined in dom.Window.
 foo(x) => x;
 
 class Unused {
   foo(x) => 'not $x';
 }
 
 int inscrutable(int x) => x == 0 ? 0 : x | inscrutable(x & (x - 1));
 
 main() {
   useHtmlConfiguration();
   var things = [new Unused(), dom.window];
 
   test('windowNonMethod', () {
       var win = things[inscrutable(1)];
       final message = foo("Hello World");
       try {
         String x = win.foo(message);
-        Expect.fail('Should not reach here: $x');
+        expect(false, isTrue, reason: 'Should not reach here: $x');
       } on NoSuchMethodError catch (e) {
         // Expected exception.
       } on Exception catch (e) {
-        Expect.fail('Wrong exception: $e');
+        expect(false, isTrue, reason: 'Wrong exception: $e');
       }
     });
 
   test('foo', () {
       var win = things[inscrutable(0)];
       String x = win.foo('bar');
-      Expect.equals('not bar', x);
+      expect(x, 'not bar');
     });
 
   // Use dom.window direclty in case the compiler does type inference.
   test('windowNonMethod2', () {
       final message = foo("Hello World");
       try {
         String x = dom.window.foo(message);
-        Expect.fail('Should not reach here: $x');
+        expect(false, isTrue, reason: 'Should not reach here: $x');
       } on NoSuchMethodError catch (e) {
         // Expected exception.
       } on Exception catch (e) {
-        Expect.fail('Wrong exception: $e');
+        expect(false, isTrue, reason: 'Wrong exception: $e');
       }
     });
 }