Description:
------------
Child httpd process segfault, when php function(called from XSLT template) throw exception, and when exception was throwed from steream wrapper, used in XSLT template.

PHP Version 5.1.0-dev, configure with:
'./configure' '--prefix=/usr/' '--with-apxs2' '--with-gettext' '--with-iconv' '--with-mysql' '--enable-mbstring=ru' '--enable-mbregex' '--enable-mbstr-enc-trans' '--disable-short-tags' '--with-xsl' '--with-libxml' '--without-sqlite' '--enable-soap'

libxslt Version 	1.1.8
libxml Version 	2.6.11
libexslt Version 	1.1.8

apache 2.0.48

Reproduce code:
---------------
<?php
try {
    function throwFunction() {
        throw new Exception('exception messaage');
    }
    
    $xsl = new DomDocument();
    $xsl->loadXML(
    '<?xml version="1.0" encoding="iso-8859-1" ?>
    <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:php="http://php.net/xsl">
    <xsl:template match="/">
    <xsl:value-of select="php:function(\'throwFunction\')" />
    </xsl:template>
    </xsl:stylesheet>'
    );
    
    $xml = new DomDocument;
    $xml->loadXML(
    '<?xml version="1.0" encoding="iso-8859-1" ?>
    <null></null>'
    );
    
    $proc = new XSLTProcessor();
    $proc->registerPhpFunctions();
    $proc->importStylesheet($xsl);
    
    $dom = $proc->transformToDoc($xml);
} catch(Exception $exception) {
    echo $exception;
}
?>

Expected result:
----------------
exception 'Exception' with message 'exception messaage' in /mnt/data/www/html/web/test.php:4
Stack trace:
#0 /mnt/data/www/html/web/test.php(27): XSLTProcessor->throwFunction()
#1 /mnt/data/www/html/web/test.php(27): XSLTProcessor->transformToDoc(Object(DOMDocument))
#2 {main}

Actual result:
--------------
from apache error log:
[Sun Aug 08 18:55:33 2004] [notice] child pid 1337 exit signal Segmentation fault (11)