Use no arguments when simulating implicit call to super constructor during type inference.

tests/language/implicit_super_constructor_call_test.dart

Index: tests/language/implicit_super_constructor_call_test.dart
diff --git a/tests/language/implicit_super_constructor_call_test.dart b/tests/language/implicit_super_constructor_call_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..16e41b28f2d2363cdf6a904e2855209885905979
--- /dev/null
+++ b/tests/language/implicit_super_constructor_call_test.dart
@@ -0,0 +1,27 @@
+// Copyright (c) 2015, 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.
+
+// This is a regression test for http://dartbug.com/22723.
+
+import "package:expect/expect.dart";
+
+class A {
+  final x;
+
+  @NoInline()
+  A({this.x: "foo"}) {
+    Expect.equals("foo", x.toString());
+    try {} catch (_) {}; // Make sure it really does not get inlined.
+  }
+}
+
+class C extends A {
+  C(foobar) { }
+}
+
+main() {
+  var c = new C(499);
+  Expect.equals("foo", c.x.toString());
+}
+