Remove unused fields in analyzer.

pkg/analyzer/lib/src/generated/ast.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.ast;
 
 import 'dart:collection';
@@ skipping 12465 matching lines @@
     }
     return null;
   }
 }
 
 /**
  * Instances of the class `NodeFoundException` are used to cancel visiting after a node has
  * been found.
  */
 class NodeLocator_NodeFoundException extends RuntimeException {
-  static int _serialVersionUID = 1;
 }
 
 /**
  * Instances of the class `NodeReplacer` implement an object that will replace one child node
  * in an AST node with another node.
  */
 class NodeReplacer implements AstVisitor<bool> {
   /**
    * Replace the old node with the new node in the AST structure containing the old node.
    *
@@ skipping 7760 matching lines @@
     _elements[index] = node;
   }
   void clear() {
     _elements = <E>[];
   }
   int get length => _elements.length;
   void set length(int value) {
     throw new UnsupportedError("Cannot resize NodeList.");
   }
 }