Add a test of non-factory constructors using redirection.

dart/tests/language/factory_redirection2_test.dart

Index: dart/tests/language/factory_redirection2_test.dart
diff --git a/dart/tests/language/factory_redirection2_test.dart b/dart/tests/language/factory_redirection2_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..b4592d8eb377d68d292ddba442a58c8b16c79ad3
--- /dev/null
+++ b/dart/tests/language/factory_redirection2_test.dart
@@ -0,0 +1,21 @@
+// 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.
+
+// Test that it is a compile-time error to have a redirection in a
+// non-factory constructor.
+
+class Foo {
+  Foo()
+  = Bar /// 01: compile-time error
+  ;
+}
+
+class Bar extends Foo {
+  factory Bar() => null;
+}
+
+main() {
+  Expect.isTrue(new Foo() is Foo);
+  Expect.isFalse(new Foo() is Bar);
+}