Description:
------------
If a PDOStatement is directly constructed (new PDOStatment()) and then any member of that instance accessed, Apache2 will crash.

Reproduce code:
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<?php

$s = new PDOStatement();
$s->errorInfo();  // <-- apache crashes

?>

Expected result:
----------------
An error, warning, or notice generated when PDOStatment is constructed directly.

Actual result:
--------------
Apache crashes:

Faulting application Apache.exe, version 2.0.54.0, faulting module php_pdo.dll, version 5.1.0.0, fault address 0x00005508.