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

Props jontyravi.
Fixes #52027.
Built from https://develop.svn.wordpress.org/trunk@49792


git-svn-id: http://core.svn.wordpress.org/trunk@49515 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/class-wp-query.php

@@ -1761,6 +1761,8 @@ class WP_Query {
 	 *
 	 * @since 1.5.0
 	 *
+	 * @global wpdb $wpdb WordPress database abstraction object.
+	 *
 	 * @return WP_Post[]|int[] Array of post objects or post IDs.
 	 */
 	public function get_posts() {
@@ -3230,11 +3232,14 @@ class WP_Query {
 	 *
 	 * @since 3.5.0
 	 *
+	 * @global wpdb $wpdb WordPress database abstraction object.
+	 *
 	 * @param array  $q      Query variables.
 	 * @param string $limits LIMIT clauses of the query.
 	 */
 	private function set_found_posts( $q, $limits ) {
 		global $wpdb;
+
 		// Bail if posts is an empty array. Continue if posts is an empty string,
 		// null, or false to accommodate caching plugins that fill posts later.
 		if ( $q['no_found_rows'] || ( is_array( $this->posts ) && ! $this->posts ) ) {

wp-includes/version.php

@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.7-alpha-49791';
+$wp_version = '5.7-alpha-49792';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.