Enable search for bbPress 2

gistfile1.aw

<?php
// Add Forums, Topics and Replies to search results
function my_add_bbp_to_search( $post_type ) {
     $post_type['exclude_from_search'] = false;
     return $post_type;
}
add_filter( 'bbp_register_forum_post_type', 'my_add_bbp_to_search' );
add_filter( 'bbp_register_topic_post_type', 'my_add_bbp_to_search' );
add_filter( 'bbp_register_reply_post_type', 'my_add_bbp_to_search' );