anchor.diff:  
     group('constructors', () {
       test('error', () {
  -      expect(() => new Element.html('<br/><br/>'), throwsStateError);
  +      Expect.throwsStateError(() => new Element.html('<br/><br/>'));
       });
   
       test('.html has no parent',
  
positive.code:           treeSanitizer: new NullTreeSanitizer());
        final attributes = element.attributes;
        expect(attributes['class'], 'foo');
        expect(attributes['style'], startsWith('overflow: hidden'));
        expect(attributes['data-foo'], 'bar');
        expect(attributes['data-foo2'], 'bar2');
  
negative.code: }
  
  void testUnsupported(String name, void f()) {
    test(name, () => Expect.throwsUnsupportedError(f));
  }
  
  main() {
  