few small analyzer AST visitor fixes

pkg/analyzer/lib/src/generated/parser.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.parser;
 
 import 'dart:collection';
@@ skipping 10015 matching lines @@
   @override
   bool visitLabeledStatement(LabeledStatement node) {
     LabeledStatement toNode = this._toNode as LabeledStatement;
     return _and(_isEqualNodeLists(node.labels, toNode.labels),
         _isEqualNodes(node.statement, toNode.statement));
   }
 
   @override
   bool visitLibraryDirective(LibraryDirective node) {
     LibraryDirective toNode = this._toNode as LibraryDirective;
-    return _and(
+    if (_and(
         _isEqualNodes(node.documentationComment, toNode.documentationComment),
         _isEqualNodeLists(node.metadata, toNode.metadata),
         _isEqualTokens(node.libraryKeyword, toNode.libraryKeyword),
         _isEqualNodes(node.name, toNode.name),
-        _isEqualTokens(node.semicolon, toNode.semicolon));
+        _isEqualTokens(node.semicolon, toNode.semicolon))) {
+      toNode.element = node.element;
+      return true;
+    }
+    return false;
   }
 
   @override
   bool visitLibraryIdentifier(LibraryIdentifier node) {
     LibraryIdentifier toNode = this._toNode as LibraryIdentifier;
     if (_isEqualNodeLists(node.components, toNode.components)) {
       toNode.propagatedType = node.propagatedType;
       toNode.staticType = node.staticType;
       return true;
     }
@@ skipping 612 matching lines @@
   }
 
   /**
    * Copy resolution data from the [fromNode] to the [toNode].
    */
   static void copyResolutionData(AstNode fromNode, AstNode toNode) {
     ResolutionCopier copier = new ResolutionCopier();
     copier._isEqualNodes(fromNode, toNode);
   }
 }