Description:
------------
Segmentation fault arises when using Closure::call and yield.

Test script:
---------------
$f = function () {
    $this->value = 'foo';
    yield $this->value;
};

$a = new class {};

var_dump(
    'foo' === $f->call($a)->current()
);

Expected result:
----------------
bool(true)

Actual result:
--------------
Segmentation fault: 11