Description:
------------
If ::format() is called with ::TYPE_DEFAULT, but the value is an
object which implements cast to number, the type is erroneously
assumed to be ::TYPE_INT32.

This issue has been reported by googleguy@php.net in r11.


Test script:
---------------
<?php
$fmt = new NumberFormatter('en_US', NumberFormatter::SPELLOUT);
var_dump($fmt->format(gmp_init('823749273428379492374')));
?>


Expected result:
----------------
string(157) "eighteen quadrillion fourteen trillion three hundred ninety-eight billion five hundred nine million four hundred eighty-one thousand nine hundred eighty-four"


Actual result:
--------------
string(108) "minus one billion one hundred twenty-nine million four hundred forty-seven thousand four hundred twenty-four"