Fixed error range for ct-props-correct.3

[angelozerr]

With this XML file:

<?xml version="1.1" ?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" attributeFormDefault="unqualified">
	 	
	<xs:complexType name="fullpersoninfo">
		<xs:complexContent>
			<xs:extension base="fullpersoninfo">
			</xs:extension>
		</xs:complexContent>
	</xs:complexType>
	
</xs:schema>

The "fullpersoninfo" of xs:extension base="fullpersoninfo" should be highlighted.