1--TEST-- 2Generator return type must be a supertype of Generator (with union types) 3--FILE-- 4<?php 5function test1() : StdClass|ArrayObject|array { 6 yield 1; 7} 8?> 9--EXPECTF-- 10Fatal error: Generator return type must be a supertype of Generator, StdClass|ArrayObject|array given in %s on line %d 11