add keyword suggestions

editor/tools/plugins/com.google.dart.server/src/com/google/dart/server/CompletionSuggestionKind.java

 /*
  * Copyright (c) 2013, 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
  * 
  * 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
@@ skipping 12 matching lines @@
   NONE,
   ARGUMENT_LIST,
   CLASS,
   CLASS_ALIAS,
   CONSTRUCTOR,
   FIELD,
   FUNCTION,
   FUNCTION_TYPE_ALIAS,
   GETTER,
   IMPORT,
+  KEYWORD,
   LIBRARY_PREFIX,
   LOCAL_VARIABLE,
   METHOD,
   METHOD_NAME,
   NAMED_ARGUMENT,
   OPTIONAL_ARGUMENT,
   PARAMETER,
   SETTER,
   TOP_LEVEL_VARIABLE,
   TYPE_PARAMETER
 }