code quality: fix @var tags for nullable WP_Query props

Author: justlevine

src/wp-includes/class-wp-query.php

@@ -22,7 +22,7 @@ class WP_Query {
 	 * Query vars set by the user.
 	 *
 	 * @since 1.5.0
-	 * @var array
+	 * @var ?array
 	 */
 	public $query;
 
@@ -72,23 +72,23 @@ class WP_Query {
 	 * The ID of the queried object.
 	 *
 	 * @since 1.5.0
-	 * @var int
+	 * @var ?int
 	 */
 	public $queried_object_id;
 
 	/**
 	 * SQL for the database query.
 	 *
 	 * @since 2.0.1
-	 * @var string
+	 * @var ?string
 	 */
 	public $request;
 
 	/**
 	 * Array of post objects or post IDs.
 	 *
 	 * @since 1.5.0
-	 * @var WP_Post[]|int[]
+	 * @var WP_Post[]|int[]|null
 	 */
 	public $posts;
 
@@ -139,7 +139,7 @@ class WP_Query {
 	 * The list of comments for current post.
 	 *
 	 * @since 2.2.0
-	 * @var WP_Comment[]
+	 * @var ?WP_Comment[]
 	 */
 	public $comments;
 
@@ -163,7 +163,7 @@ class WP_Query {
 	 * Current comment object.
 	 *
 	 * @since 2.2.0
-	 * @var WP_Comment
+	 * @var ?WP_Comment
 	 */
 	public $comment;
 
@@ -466,7 +466,7 @@ class WP_Query {
 	 * Cached list of search stopwords.
 	 *
 	 * @since 3.7.0
-	 * @var array
+	 * @var ?array
 	 */
 	private $stopwords;