diff --git wp-includes/class-wp-theme.php wp-includes/class-wp-theme.php
index ba07555..068fff8 100644
--- wp-includes/class-wp-theme.php
+++ wp-includes/class-wp-theme.php
@@ -1183,6 +1183,10 @@ final class WP_Theme implements ArrayAccess {
 	 *
 	 * @since 3.4.0
 	 * @access private
+	 *
+	 * @param WP_Theme $a
+	 * @param WP_Theme $b
+	 * @return int
 	 */
 	private static function _name_sort( $a, $b ) {
 		return strnatcasecmp( $a->headers['Name'], $b->headers['Name'] );
@@ -1193,6 +1197,11 @@ final class WP_Theme implements ArrayAccess {
 	 *
 	 * @since 3.4.0
 	 * @access private
+	 *
+	 * @param WP_Theme $a
+	 * @param WP_Theme $b
+	 * @see _name_sort
+	 * @return int
 	 */
 	private static function _name_sort_i18n( $a, $b ) {
 		// Don't mark up; Do translate.