Emit a compile-time error for initializers of the form this.foo and super.foo.

tests/language/illegal_initializer_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.
+
+class A {
+  A();
+  A.foo();
+}
+
+class B extends A {
+  B.c1() : super.foo
+  /*  /// 01: compile-time error
+  ()
+  */  /// 01: continued
+  ;
+
+  B.foo();
+  B.c2() : this.foo
+  /*  /// 02: compile-time error
+  ()
+  */  /// 02: continued
+  ;
+
+  B.c3() : super
+  /*  /// 03: compile-time error
+  ()
+  */  /// 03: continued
+  ;
+
+  B();
+  B.c4() : this
+  /*  /// 04: compile-time error
+  ()
+  */  /// 04: continued
+  ;
+}
+
+main() {
+  new B.c1();
+  new B.c2();
+  new B.c3();
+  new B.c4();
+}