Remove/skip invalid mirror tests.

tests/lib/mirrors/intercepted_object_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.
 
 // Ensure that objects handled specially by dart2js can be reflected on.
 
 library test.intercepted_object_test;
 
 import 'dart:mirrors';
 
 import 'stringify.dart' show stringify, expect;
 
 import 'intercepted_class_test.dart' show checkClassMirrorMethods;
 
 checkImplements(object, String name) {
   ClassMirror cls = reflect(object).type;
   checkClassMirrorMethods(cls);
 
   List<ClassMirror> superinterfaces = cls.superinterfaces;
   String symName = 's($name)';
   for (ClassMirror superinterface in superinterfaces) {
     print(superinterface.simpleName);
     if (symName == stringify(superinterface.simpleName)) {
       checkClassMirrorMethods(superinterface);
       return;
     }
   }
+ 
+  // A class implements itself, even if not explicitly declared.
+  if (symName == stringify(cls.simpleName)) {
+    checkClassMirrorMethods(cls);
+    return;
+  }
 
   // TODO(floitsch): use correct fail
   expect(name, "super interface not found");
 }
 
 main() {
   checkImplements('', 'String');
   checkImplements(1, 'int');
   checkImplements(1.5, 'double');
   checkImplements(true, 'bool');
   checkImplements(false, 'bool');
   checkImplements([], 'List');
 }