Code clean-up, mostly constructors

pkg/analyzer/lib/src/generated/html.dart

 // Copyright (c) 2014, 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 code was auto-generated, is not intended to be edited, and is subject to
 // significant change. Please see the README file for more information.
 
 library engine.html;
 
 import 'dart:collection';
@@ skipping 1142 matching lines @@
 /**
  * The reference to the [Element].
  */
 class XmlExpression_Reference {
   Element element;
 
   int offset = 0;
 
   int length = 0;
 
-  XmlExpression_Reference(Element element, int offset, int length) {
-    this.element = element;
-    this.offset = offset;
-    this.length = length;
-  }
+  XmlExpression_Reference(this.element, this.offset, this.length);
 }
 
 /**
  * The abstract class `XmlNode` defines behavior common to all XML/HTML nodes.
  */
 abstract class XmlNode {
   /**
    * The parent of the node, or `null` if the node is the root of an AST structure.
    */
   XmlNode _parent;
@@ skipping 703 matching lines @@
  */
 abstract class XmlVisitor<R> {
   R visitHtmlScriptTagNode(HtmlScriptTagNode node);
 
   R visitHtmlUnit(HtmlUnit htmlUnit);
 
   R visitXmlAttributeNode(XmlAttributeNode xmlAttributeNode);
 
   R visitXmlTagNode(XmlTagNode xmlTagNode);
 }