Nav Menus: Add a 'nav_menu_item_args' filter to `Walker_Nav_Menu::start_el()`.

Props bjornjohansen.
Fixes #29417.

Built from https://develop.svn.wordpress.org/trunk@34471


git-svn-id: http://core.svn.wordpress.org/trunk@34435 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/nav-menu-template.php

@@ -71,6 +71,7 @@ class Walker_Nav_Menu extends Walker {
 	 * @see Walker::start_el()
 	 *
 	 * @since 3.0.0
+	 * @since 4.4.0 'nav_menu_item_args' filter was added.
 	 *
 	 * @param string $output Passed by reference. Used to append additional content.
 	 * @param object $item   Menu item data object.
@@ -84,6 +85,14 @@ class Walker_Nav_Menu extends Walker {
 		$classes = empty( $item->classes ) ? array() : (array) $item->classes;
 		$classes[] = 'menu-item-' . $item->ID;
 
+		/**
+		 * @since 4.4.0
+		 *
+		 * @param array  $args  An array of arguments.
+		 * @param object $item  Menu item data object.
+		 */
+		$args = apply_filters( 'nav_menu_item_args', $args, $item );
+
 		/**
 		 * Filter the CSS class(es) applied to a menu item's list item element.
 		 *

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.4-alpha-34470';
+$wp_version = '4.4-alpha-34471';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.