Remove unused fields in analyzer.

pkg/analyzer/lib/src/generated/resolver.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.
 
 library engine.resolver;
 
 import 'dart:collection';
 import "dart:math" as math;
 
 import 'java_core.dart';
@@ skipping 5401 matching lines @@
    * The analysis context in which the element model will be built.
    */
   final InternalAnalysisContext _context;
 
   /**
    * The error listener to which errors will be reported.
    */
   RecordingErrorListener _errorListener;
 
   /**
-   * The modification time of the source for which an element is being built.
-   */
-  int _modificationStamp = 0;
-
-  /**
    * The HTML element being built.
    */
   HtmlElementImpl _htmlElement;
 
   /**
    * The elements in the path from the HTML unit to the current tag node.
    */
   List<ht.XmlTagNode> _parentNodes;
 
   /**
@@ skipping 12 matching lines @@
    * @param context the analysis context in which the element model will be built
    */
   HtmlUnitBuilder(this._context) {
     this._errorListener = new RecordingErrorListener();
   }
 
   /**
    * Build the HTML element for the given source.
    *
    * @param source the source describing the compilation unit
-   * @param modificationStamp the modification time of the source for which an element is being
-   *          built
    * @param unit the AST structure representing the HTML
    * @throws AnalysisException if the analysis could not be performed
    */
-  HtmlElementImpl buildHtmlElement(Source source, int modificationStamp, ht.HtmlUnit unit) {
-    this._modificationStamp = modificationStamp;
+  HtmlElementImpl buildHtmlElement(Source source, ht.HtmlUnit unit) {
     HtmlElementImpl result = new HtmlElementImpl(_context, source.shortName);
     result.source = source;
     _htmlElement = result;
     unit.accept(this);
     _htmlElement = null;
     unit.element = result;
     return result;
   }
 
   /**
@@ skipping 10343 matching lines @@
       _errorListener.onError(
           new AnalysisError.con2(
               element.source,
               element.nameOffset,
               element.displayName.length,
               errorCode,
               arguments));
     }
   }
 }