Automatically generate most constructors

client/dom/generated/src/interface/HTMLOptionElement.dart

 // 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.
 
 // WARNING: Do not edit - generated code.
 
-interface HTMLOptionElement extends HTMLElement {
+interface HTMLOptionElement extends HTMLElement default _HTMLOptionElementFactoryProvider {
+
+  HTMLOptionElement([String data, String value, bool defaultSelected, bool selected]);
 
   bool defaultSelected;
 
   bool disabled;
 
   final HTMLFormElement form;
 
   final int index;
 
   String label;
 
   bool selected;
 
   String text;
 
   String value;
 }