Little fail in my "Steps To Reproduce", the type in the catch sould be myException.

It's a duplicate of 0001133, which I've already fixed. I've verified it with your example too:

derick@whisky:~ $ php --ri xdebug | grep Version
Version => 2.3.2
[PHP: 5.6.9-dev ]

derick@whisky:~ $ php /tmp/foo.php
string(3) "foo"
int(0)
int(0)
[PHP: 5.6.9-dev ]

derick@whisky:~ $ php --ri xdebug | grep Version
Version => 2.3.3-dev
[PHP: 5.6.9-dev ]

derick@whisky:~ $ php /tmp/foo.php
string(3) "foo"
string(3) "foo"
string(3) "foo"
[PHP: 5.6.9-dev ]

derick@whisky:~ $ cat /tmp/foo.php
<?php
class myException extends Exception {
public function construct($message = '', $code = "-1", $params = array(), Exception $previousException = null) {
parent::construct($message, -1);
$this->code = $code;
}
}

$ex = new myException('foo', 'foo');
var_dump($ex->getCode());
try {
throw $ex;
} catch (myException $e) {
var_dump($e->getCode());
}
var_dump($ex->getCode());
?>