Fix dart2js_extra/type_error_message_test work in minified mode.

tests/compiler/dart2js_extra/type_error_message_test.dart

Index: tests/compiler/dart2js_extra/type_error_message_test.dart
diff --git a/tests/compiler/dart2js_extra/type_error_message_test.dart b/tests/compiler/dart2js_extra/type_error_message_test.dart
index 220550b1d411d49a0fe0757a2b506753943b5777..1f44f6fdee1460ab6ae2983c880f093641593250 100644
--- a/tests/compiler/dart2js_extra/type_error_message_test.dart
+++ b/tests/compiler/dart2js_extra/type_error_message_test.dart
@@ -2,6 +2,9 @@
 // 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.
 
+// Test that the error message for a failing subtype test includes type
+// arguments.
+
 import 'package:expect/expect.dart';
 
 class C<T, S> {}
@@ -21,7 +24,10 @@ main() {
     try {
       C<String, String> x = new C<C<int, String>, String>();
     } catch (e) {
-      String expected = 'C<C<int, String>, String>';
+      String nameOfC = (C).toString();
+      String nameOfInt = (int).toString();
+      String nameOfString = (String).toString();
+      String expected = '$nameOfC<$nameOfC<$nameOfInt, $nameOfString>, $nameOfString>';
       Expect.isTrue(e.toString().contains(expected),
                     'Expected "$expected" in the message');
       caught = true;