--TEST--
Using array unpacking in an array literal that also has string keys (OSS-Fuzz #17965)
--FILE--
<?php
$y = [1, 2, 3];
$z = "bar";
$x = [...$y, "foo" => $z];
var_dump($x);
?>
--EXPECT--
array(4) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
int(3)
["foo"]=>
string(3) "bar"
}