1--TEST-- 2Test that a notice is emitted when the tentative return type of the overridden method is omitted 3--FILE-- 4<?php 5class MyDateTimeZone extends DateTimeZone 6{ 7 public static function listIdentifiers(int $timezoneGroup = DateTimeZone::ALL, ?string $countryCode = null) 8 { 9 } 10} 11?> 12--EXPECTF-- 13Deprecated: Return type of MyDateTimeZone::listIdentifiers(int $timezoneGroup = DateTimeZone::ALL, ?string $countryCode = null) should either be compatible with DateTimeZone::listIdentifiers(int $timezoneGroup = DateTimeZone::ALL, ?string $countryCode = null): array, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in %s on line %d 14