lint: use @var instead of not is_array check

Author: shawnhooper

src/Comment_Command.php

@@ -808,17 +808,15 @@ private function check_optional_args_and_all( $args, $all, $verb = 'delete' ) {
 	 */
 	private function get_all_comment_ids(): array {
 		$query    = new WP_Comment_Query();
+
+		/** @var array $comments */
 		$comments = $query->query(
 			array(
 				'fields' => 'ids',
 				'number' => 0, // Get all comments
 			)
 		);
 
-		if ( ! is_array( $comments ) ) {
-			return [];
-		}
-
 		return $comments;
 	}
 }