Description:
------------
Looks like the xs:any element is not implemented for XML Schema

Reproduce code:
---------------
<?php
$message = new DomDocument();
$message -> loadXML("<test><ok /></test>");
$message -> schemavalidate("schemas/test.xsd");
print "Ok";
?>

<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
	<xs:element name="test">
		<xs:complexType>
			<xs:sequence>
				<xs:any namespace="##any"/>
			</xs:sequence>
		</xs:complexType>
	</xs:element>
</xs:schema>

Expected result:
----------------
Ok

Actual result:
--------------
Warning: Unimplemented block at ..\xmlschemas.c:3246 in D:\My Webs\test.php on line 4
Warning: Element test content check failed in D:\My Webs\test.php on line 4
Ok