Description:
------------
When comparing objects with integer types the notice:

"PHP Notice:  Object of class Foo could not be converted to int in Command line code on line 1"

is raised, this only happens when not using strict checks (== vs ===)
It has been tested on multiple builds 5.1.6, 5.2.2, 5.2.4 and 5.2.5.

Reproduce code:
---------------
FAILS
php -r 'error_reporting( E_ALL ); class Foo { } $foo = new Foo; var_dump( in_array($foo, array(0)) );'

WORKS
php -r 'error_reporting( E_ALL ); class Foo { } $foo = new Foo; var_dump( in_array($foo, array("foo")) );'


// More examples: http://pasteosaurus.com/44812

Expected result:
----------------
I exepected to get: bool(false)

Actual result:
--------------
$ php -r 'error_reporting( E_ALL ); class Foo { } $foo = new Foo; if ($foo == 1) {}';

Notice: Object of class Foo could not be converted to int in Command line code on line 1

Call Stack:
    0.0001      68456   1. {main}() Command line code:0