Docs: Correctly specify the `$page` parameter of `list_pages` filter as a `WP_Post`.

Props ianbelanger.
Fixes #44398.
Built from https://develop.svn.wordpress.org/trunk@44355


git-svn-id: http://core.svn.wordpress.org/trunk@44185 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/class-walker-page-dropdown.php

@@ -80,8 +80,8 @@ class Walker_PageDropdown extends Walker {
 		 *
 		 * @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 );
 

wp-includes/version.php

@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.1-alpha-44354';
+$wp_version = '5.1-alpha-44355';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.