fix for opening a file that does not belong to a library

editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/ui/internal/handlers/HandlerMessages.java

 /*
  * Copyright (c) 2011, the Dart project authors.
- *
- * Licensed under the Eclipse Public License v1.0 (the "License"); you may not
- * use this file except in compliance with the License. You may obtain a copy of
- * the License at
- *
+ * 
+ * Licensed under the Eclipse Public License v1.0 (the "License"); you may not use this file except
+ * in compliance with the License. You may obtain a copy of the License at
+ * 
  * http://www.eclipse.org/legal/epl-v10.html
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations under
+ * 
+ * Unless required by applicable law or agreed to in writing, software distributed under the License
+ * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+ * or implied. See the License for the specific language governing permissions and limitations under
  * the License.
  */
 package com.google.dart.tools.ui.internal.handlers;
 
 import org.eclipse.osgi.util.NLS;
 
 public class HandlerMessages extends NLS {
   private static final String BUNDLE_NAME = "com.google.dart.tools.ui.internal.handlers.HandlerMessages"; //$NON-NLS-1$
   static {
     NLS.initializeMessages(BUNDLE_NAME, HandlerMessages.class);
   }
 
   public static String OpenFile_label;
   public static String OpenFile_description;
   public static String OpenFile_taskName;
+  public static String OpenFile_errorMessage;
+  public static String OpenFile_errorFileNotInLibrary;
 
 }