Mirror test updated cf. API change

tests/compiler/dart2js/mirrors_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.
 
 #import("../../../lib/dartdoc/mirrors/mirrors.dart");
 #import("../../../lib/dartdoc/mirrors/mirrors_util.dart");
 
 #import('dart:io');
 
 int count(Iterable iterable) {
@@ skipping 263 matching lines @@
   }
 
   var bazSubdeclarations = computeSubdeclarations(bazClass);
   Expect.equals(0, count(bazSubdeclarations), "Unexpected subtype count");
 
   var barInterface = findMirror(bazInterfaces, "Bar");
   Expect.isNotNull(barInterface, "Interface bar is missing");
   Expect.isFalse(barInterface.isDeclaration, "Interface type is declaration");
   var barInterfaceTypeArguments = barInterface.typeArguments();
   Expect.isNotNull(barInterfaceTypeArguments, "Type arguments are missing");
-  // TODO(johnniwinther): Ensure type arguments on supertypes. Expected result
-  // should have been 1:
-  Expect.equals(0, barInterfaceTypeArguments.length,
+  Expect.equals(1, barInterfaceTypeArguments.length,
                 "Type arguments is empty");
 
   Expect.throws(() => bazClass.typeArguments(),
                 (exception) => true,
                 "Class has type arguments");
   var bazClassTypeVariables = bazClass.typeVariables();
   Expect.isNotNull(bazClassTypeVariables, "Type variable list is null");
   Expect.equals(2, bazClassTypeVariables.length,
                 "Type variable list is not empty");
 
@@ skipping 331 matching lines @@
   Expect.stringEquals('negate', operator_negate.operatorName,
                       "Unexpected operatorName");
 
 
   var bazClassConstructors = bazClass.constructors();
   Expect.isNotNull(bazClassConstructors, "Constructors map is null");
   Expect.equals(3, bazClassConstructors.length,
                 "Unexpected number of constructors");
   // TODO(johnniwinther): Add tests of constructors.
 }