Support typeVariables in ClassMirror.

tests/lib/mirrors/mirrors_test.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.
 
 library MirrorsTest;
 
 import 'dart:mirrors';
 
 import '../../light_unittest.dart';
 
@@ skipping 221 matching lines @@
   var typedefMirror = libMirror.members[const Symbol('Typedef')];
   var methodMirror = libMirror.functions[const Symbol('testNames')];
   var variableMirror = classMirror.variables[const Symbol('field')];
 
   expect(libMirror.simpleName, equals(const Symbol('MirrorsTest')));
   expect(libMirror.qualifiedName, equals(const Symbol('MirrorsTest')));
 
   expect(classMirror.simpleName, equals(const Symbol('Class')));
   expect(classMirror.qualifiedName, equals(const Symbol('MirrorsTest.Class')));
 
+  TypeVariableMirror typeVariable = classMirror.typeVariables.single;
+  expect(typeVariable.simpleName, equals(const Symbol('T')));
+  expect(typeVariable.qualifiedName,
+      equals(const Symbol('MirrorsTest.Class.T')));
+
   if (!isDart2js) { // TODO(ahe): Implement this in dart2js.
-    TypeVariableMirror typeVariable = classMirror.typeVariables.single;
-    expect(typeVariable.simpleName, equals(const Symbol('T')));
-    expect(typeVariable.qualifiedName,
-           equals(const Symbol('MirrorsTest.Class.T')));
-
     expect(typedefMirror.simpleName, equals(const Symbol('Typedef')));
     expect(typedefMirror.qualifiedName,
            equals(const Symbol('MirrorsTest.Typedef')));
 
     var typedefMirrorDeNovo = reflectClass(Typedef);
     expect(typedefMirrorDeNovo.simpleName, equals(const Symbol('Typedef')));
     expect(typedefMirrorDeNovo.qualifiedName,
            equals(const Symbol('MirrorsTest.Typedef')));
   }
 
@@ skipping 24 matching lines @@
   test("Test current library uri", () {
     testLibraryUri(new Class(),
       (Uri uri) => uri.path.endsWith('/mirrors_test.dart'));
   });
   test("Test dart library uri", () {
     testLibraryUri("test", (Uri uri) => uri == Uri.parse('dart:core'));
   });
   test("Test simple and qualifiedName", () { testNames(mirrors); });
   test("Test reflect type", () { testReflectClass(mirrors); });
 }