Docs: Add missing `@since` and `@access` tags for `WP_Date_Query::is_first_order_clause()`.

Props keesiemeijer.
#39462.
Built from https://develop.svn.wordpress.org/trunk@39672


git-svn-id: http://core.svn.wordpress.org/trunk@39612 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/date.php

@@ -251,6 +251,9 @@ class WP_Date_Query {
 	 * Checks to see if the current clause has any time-related keys.
 	 * If so, it's first-order.
 	 *
+	 * @since 4.1.0
+	 * @access protected
+	 *
 	 * @param  array $query Query clause.
 	 * @return bool True if this is a first-order clause.
 	 */

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.8-alpha-39671';
+$wp_version = '4.8-alpha-39672';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.