Cannot catch querypath parser errors

HHVM Version

3.14.0-dev

Standalone code, or other way to reproduce the problem

<?php

include('/path/to/autoload.php');

$qp = htmlqp(QueryPath::XHTML_STUB, 'body', []);

$h = <<<HTML
<div>This is invalid HTML < </div>
HTML;

function errorHandler($errno, $errstr) {
  var_dump('handling error', $errno, $errstr);
}

set_error_handler('errorHandler', E_ERROR | E_WARNING | E_USER_ERROR | E_USER_WARNING);

$qp->html($h);

Expected result

In Zend, the error handler gets called 4 times:

string(14) "handling error"
int(2)
string(95) "DOMDocumentFragment::appendXML(): Entity: line 1: parser error : StartTag: invalid element name"
string(14) "handling error"
int(2)
string(68) "DOMDocumentFragment::appendXML(): <div>This is invalid HTML < </div>"
string(14) "handling error"
int(2)
string(62) "DOMDocumentFragment::appendXML():                            ^"
string(14) "handling error"
int(2)
string(91) "DOMDocumentFragment::appendXML(): Entity: line 1: parser error : chunk is not well balanced"

Actual result

In HHVM, it gets called 0 times:

Entity: line 1: parser error : StartTag: invalid element name
<div>This is invalid HTML < </div>
                           ^
Entity: line 1: parser error : chunk is not well balanced

facebook / hhvm

Cannot catch querypath parser errors #6982

HHVM Version

Standalone code, or other way to reproduce the problem

Expected result

Actual result