Mark more code as deprecated

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 490 matching lines @@
         new sc.SubSequenceReader(contents, contentOffset), errorListener);
     scanner.setSourceStart(location.lineNumber, location.columnNumber);
     return scanner.tokenize();
   }
 }
 
 /**
  * Instances of the class `HtmlScriptTagNode` represent a script tag within an HTML file that
  * references a Dart script.
  */
+@deprecated
 class HtmlScriptTagNode extends XmlTagNode {
   /**
    * The AST structure representing the Dart code within this tag.
    */
   CompilationUnit _script;
 
   /**
    * The element representing this script.
    */
   HtmlScriptElement scriptElement;
@@ skipping 35 matching lines @@
     _script = unit;
   }
 
   @override
   accept(XmlVisitor visitor) => visitor.visitHtmlScriptTagNode(this);
 }
 
 /**
  * Instances of the class `HtmlUnit` represent the contents of an HTML file.
  */
+@deprecated
 class HtmlUnit extends XmlNode {
   /**
    * The first token in the token stream that was parsed to form this HTML unit.
    */
   final Token beginToken;
 
   /**
    * The last token in the token stream that was parsed to form this compilation unit. This token
    * should always have a type of [TokenType.EOF].
    */
@@ skipping 1304 matching lines @@
  */
 abstract class XmlVisitor<R> {
   R visitHtmlScriptTagNode(HtmlScriptTagNode node);
 
   R visitHtmlUnit(HtmlUnit htmlUnit);
 
   R visitXmlAttributeNode(XmlAttributeNode xmlAttributeNode);
 
   R visitXmlTagNode(XmlTagNode xmlTagNode);
 }