Ensure that ClassElement.lookupConstructor fails when looking up default constructor using Selector…

tests/compiler/dart2js_extra/this_redirecting_constructor_test.dart

Index: tests/compiler/dart2js_extra/this_redirecting_constructor_test.dart
diff --git a/tests/language/constructor_redirect2_negative_test.dart b/tests/compiler/dart2js_extra/this_redirecting_constructor_test.dart
similarity index 52%
copy from tests/language/constructor_redirect2_negative_test.dart
copy to tests/compiler/dart2js_extra/this_redirecting_constructor_test.dart
index bbb03c60884e79ead1cd57038c2027dc8ce92665..078e131f9894c335beb77d58629eeed5d8bebd0b 100644
--- a/tests/language/constructor_redirect2_negative_test.dart
+++ b/tests/compiler/dart2js_extra/this_redirecting_constructor_test.dart
@@ -1,19 +1,17 @@
-// 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.
-// Redirection constructors must not be cyclic.
-
-class A {
-  var x;
-  A(x) : this(0);
-}
-
-class ConstructorRedirect2NegativeTest {
-  static testMain() {
-    new A(10);
-  }
-}
-
-main() {
-  ConstructorRedirect2NegativeTest.testMain();
-}
+// 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.
+
+// Confirm that redirecting named constructors are properly resolved.
+
+class C {
+  var x;
+  C() { x = 1; }
+  C.C() { x = 2; }
+  C.redirecting(): this.C();
+}
+
+main() {
+  var c = new C.redirecting();
+  Expect.equals(c.x, 2);
+}