Index: src/wp-includes/class-walker-page-dropdown.php
===================================================================
--- src/wp-includes/class-walker-page-dropdown.php	(revision 43376)
+++ src/wp-includes/class-walker-page-dropdown.php	(working copy)
@@ -80,8 +80,8 @@
 		 *
 		 * @since 3.1.0
 		 *
-		 * @param string $title Page title.
-		 * @param object $page  Page data object.
+		 * @param string  $title Page title.
+		 * @param WP_Post $page  Page data object.
 		 */
 		$title = apply_filters( 'list_pages', $title, $page );