Description:
------------
"Invalid opcode 65/16/8" occurs with a variable created with list().
print_r() has same error.
ref. https://3v4l.org/U3Qnl

This error occurs on PHP 7.0.13.
But it does not occur on PHP 5.6.28.

Test script:
---------------
<?php
var_dump(list($val) = [1]);    // OK

$array = [1];
var_dump(list($val) = $array); // NG: Invalid opcode

Expected result:
----------------
[vagrant@localhost ~]$ php test.php
/home/vagrant/test.php:2:
array(1) {
  [0] =>
  int(1)
}
/home/vagrant/test.php:5:
array(1) {
  [0] =>
  int(1)
}


Actual result:
--------------
[vagrant@localhost ~]$ php test.php
/home/vagrant/test.php:2:
array(1) {
  [0] =>
  int(1)
}
PHP Fatal error:  Invalid opcode 65/16/8. in /home/vagrant/test.php on line 5
PHP Stack trace:
PHP   1. {main}() /home/vagrant/test.php:0