Description:
------------
I tried to add a type hint for a function with an array:

function test(array $supi) ...

if I var_dump the content of the variable it is null but 
should be array.

This problem is x86 64bit specific.

It doesn't happen on 32bit architecture.

Thank you for your help and support.

Reproduce code:
---------------
<?php
class A{
 function test(array $supi){
  echo("A:test\n");
  var_dump($supi);
 }
}

class B{
 function test2(B $supi){
  var_dump($supi);
 }
}

$a = new A();
$testArray = array('test');
$a->test($testArray);

$b = new B();
$b->test2($b);
?>

Expected result:
----------------
A:test
array(1) {
  [0]=>
  string(4) "test"
}
object(B)#2 (0) {
}

Actual result:
--------------
A:test
NULL
object(B)#2 (0) {
}