Fix for name declaration indexing in for-in statement.

pkg/analysis_services/lib/src/index/index_contributor.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 services.src.index.index_contributor;
 
 import 'dart:collection' show Queue;
@@ skipping 514 matching lines @@
     } else {
       int start = node.type.end;
       location = _createLocationForOffset(start, 0);
     }
     // record relationship
     recordRelationship(element, IndexConstants.IS_REFERENCED_BY, location);
     return super.visitConstructorName(node);
   }
 
   @override
+  Object visitDeclaredIdentifier(DeclaredIdentifier node) {
+    LocalVariableElement element = node.element;
+    enterScope(element);
+    try {
+      return super.visitDeclaredIdentifier(node);
+    } finally {
+      _exitScope();
+    }
+  }
+
+  @override
   Object visitExportDirective(ExportDirective node) {
     ExportElement element = node.element;
     if (element != null) {
       LibraryElement expLibrary = element.exportedLibrary;
       _recordLibraryReference(node, expLibrary);
     }
     return super.visitExportDirective(node);
   }
 
   @override
@@ skipping 621 matching lines @@
   }
 
   /**
    * @return `true` if given "node" is part of [PrefixedIdentifier] "prefix.node".
    */
   static bool _isIdentifierInPrefixedIdentifier(SimpleIdentifier node) {
     AstNode parent = node.parent;
     return parent is PrefixedIdentifier && identical(parent.identifier, node);
   }
 }