8022657: Add FunctionalInterface annotation to awt interfaces

Reviewed-by: anthony, art

src/share/classes/java/awt/KeyEventDispatcher.java

 /*
- * Copyright (c) 2000, 2001, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -51,6 +51,7 @@ import java.awt.event.KeyEvent;
  * @see KeyboardFocusManager#removeKeyEventDispatcher
  * @since 1.4
  */
+@FunctionalInterface
 public interface KeyEventDispatcher {
 
     /**

src/share/classes/java/awt/KeyEventPostProcessor.java

 /*
- * Copyright (c) 2001, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -54,6 +54,7 @@ import java.awt.event.KeyEvent;
  * @see KeyboardFocusManager#removeKeyEventPostProcessor
  * @since 1.4
  */
+@FunctionalInterface
 public interface KeyEventPostProcessor {
 
     /**