Description:
------------
foreach on array containing objects without "$key =>" is not compatible with pre-versions

Is that because of the porting of those code from v5.0.2 ?

b2evo and xoops use many this kind of statements to fetch the database objects.

Reproduce code:
---------------
$a = array();
$user->name = "peter";
$user->age = "24";
$a[0] = $user;
$user->name = "ice";
$user->age = "25";
$a[1] = $user;

    foreach ( $a as $u){
    // foreach ( $a as $key => $u) works ok
    print $u->name.": ".$u->age."\n";
        var_dump($u);
    }


Expected result:
----------------
peter:24
ice:25
object(stdClass)(2) {
  ["name"]=>
  string(5) "peter"
  ["age"]=>
  string(2) "24"
}
object(stdClass)(2) {
  ["name"]=>
  string(3) "ice"
  ["age"]=>
  string(2) "25"
}

Actual result:
--------------
NULL:NULL
NULL:NULL
array(2) {
  [0]=>
  object(stdClass)(2) {
    ["name"]=>
    string(5) "peter"
    ["age"]=>
    string(2) "24"
  }
  [1]=>
  int(0)
}
array(2) {
  [0]=>
  object(stdClass)(2) {
    ["name"]=>
    string(3) "ice"
    ["age"]=>
    string(2) "25"
  }
  [1]=>
  int(1)
}