Substitute type variables as type arguments.

tests/lib/mirrors/generics_substitution_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.
 
 library test.generics_substitution;
 
 import 'dart:mirrors';
 import 'package:expect/expect.dart';
 
 class SuperGeneric<R, S> {
@@ skipping 18 matching lines @@
   Expect.isFalse(superOfTAndInt.isOriginalDeclaration);
   Expect.isFalse(superOfStringAndInt.isOriginalDeclaration);
 
   Symbol r(ClassMirror cm) =>
       (cm.declarations[#r] as VariableMirror).type.simpleName;
   Symbol s(ClassMirror cm) =>
       (cm.declarations[#s] as MethodMirror).parameters[0].type.simpleName;
   Symbol t(ClassMirror cm) =>
       (cm.declarations[#t] as MethodMirror).returnType.simpleName;
 
-  Expect.equals(#T, r(genericDecl.superclass)); /// 01: ok
+  Expect.equals(#T, r(genericDecl.superclass));
   Expect.equals(#int, s(genericDecl.superclass));
   Expect.equals(#T, t(genericDecl));
 
-  Expect.equals(#String, r(genericOfString.superclass)); /// 01: ok
+  Expect.equals(#String, r(genericOfString.superclass));
   Expect.equals(#int, s(genericOfString.superclass));
   Expect.equals(#String, t(genericOfString));
 
-  Expect.equals(#R, r(superGenericDecl)); /// 01: ok
+  Expect.equals(#R, r(superGenericDecl));
   Expect.equals(#S, s(superGenericDecl));
 
-  Expect.equals(#T, r(superOfTAndInt)); /// 01: ok
+  Expect.equals(#T, r(superOfTAndInt));
   Expect.equals(#int, s(superOfTAndInt));
 
-  Expect.equals(#String, r(superOfStringAndInt)); /// 01: ok
+  Expect.equals(#String, r(superOfStringAndInt));
   Expect.equals(#int, s(superOfStringAndInt));
 }