Index: src/wp-includes/class-wp-editor.php
===================================================================
--- src/wp-includes/class-wp-editor.php	(revision 25295)
+++ src/wp-includes/class-wp-editor.php	(working copy)
@@ -798,6 +798,26 @@
 
 		$query['offset'] = $args['pagenum'] > 1 ? $query['posts_per_page'] * ( $args['pagenum'] - 1 ) : 0;
 
+		/**
+		 * Filter the link query arguments.
+		 *
+		 * Allows modification of the link query arguments before querying.
+		 *
+		 * @since 3.7.0
+		 *
+		 * @param array $query {
+		 *     An array of query arguments.
+		 *
+		 *     @type string 'post_type'              The post type.
+		 *     @type bool   'suppress_filters'       Whether to suppress filters.
+		 *     @type bool   'update_post_term_cache' Whether to update the post term cache.
+		 *     @type bool   'update_post_meta_cache' Whether to update the post meta cache.
+		 *     @type string 'post_status'            The post status.
+		 *     @type string 'order'                  How to order the query, ascending or descending.
+		 *     @type string 'orderby'                What field to order the query by.
+		 *     @type int    'posts_per_page'         The number of posts to query for.
+		 * }
+		 */
 		$query = apply_filters( 'wp_link_query_args', $query );
 
 		// Do main query.
@@ -823,6 +843,26 @@
 			);
 		}
 
+		/**
+		 * Filter the link query results.
+		 *
+		 * Allows modification of the returned link query results.
+		 *
+		 * @since 3.7.0
+		 *
+		 * @param array $results {
+		 *     An associative array of query results.
+		 *
+		 *     @type array {
+		 *         @type int    'ID'        The post id.
+		 *         @type string 'title'     The trimmed, escaped post title.
+		 *         @type string 'permalink' The post permalink.
+		 *         @type string 'info'      A 'Y/m/d'-formatted date for 'post' post type, the 'singular_name' post type label otherwise.
+		 *     }
+		 * }
+		 * @param array $query   An array of query arguments. @see 'wp_link_query_args' filter
+		 * }
+		 */
 		return apply_filters( 'wp_link_query', $results, $query );
 	}