Docs: Document usage of the `$wpdb` global in `WP_Query::parse_search()` and `WP_Query::parse_orderby()`.

Props avinapatel.
Fixes #41313.

Built from https://develop.svn.wordpress.org/trunk@41041


git-svn-id: http://core.svn.wordpress.org/trunk@40891 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/class-wp-query.php

@@ -1292,9 +1292,12 @@ class WP_Query {
 	}
 
 	/**
-	 * Generate SQL for the WHERE clause based on passed search terms.
+	 * Generates SQL for the WHERE clause based on passed search terms.
 	 *
 	 * @since 3.7.0
+	 * @access protected
+	 *
+	 * @global wpdb $wpdb WordPress database abstraction object.
 	 *
 	 * @param array $q Query variables.
 	 * @return string WHERE clause.
@@ -1509,6 +1512,8 @@ class WP_Query {
 	 * @since 4.0.0
 	 * @access protected
 	 *
+	 * @global wpdb $wpdb WordPress database abstraction object.
+	 *
 	 * @param string $orderby Alias for the field to order by.
 	 * @return string|false Table-prefixed value to used in the ORDER clause. False otherwise.
 	 */

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.9-alpha-41040';
+$wp_version = '4.9-alpha-41041';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.