[testsuite] Added test to make sure numeric range index is used if node set contains empty elements.
[testsuite] Added test to make sure numeric range index is used if node set contains empty elements.

svn path=/trunk/eXist/; revision=16176

joewiz/exist,windauer/exist,MjAbuz/exist,shabanovd/exist,adamretter/exist,adamretter/exist,wolfgangmm/exist,windauer/exist,zwobit/exist,jensopetersen/exist,ljo/exist,lcahlander/exist,joewiz/exist,adamretter/exist,zwobit/exist,shabanovd/exist,eXist-db/exist,adamretter/exist,opax/exist,eXist-db/exist,opax/exist,olvidalo/exist,lcahlander/exist,RemiKoutcherawy/exist,wolfgangmm/exist,joewiz/exist,zwobit/exist,patczar/exist,kohsah/exist,shabanovd/exist,RemiKoutcherawy/exist,RemiKoutcherawy/exist,joewiz/exist,opax/exist,ljo/exist,joewiz/exist,ambs/exist,RemiKoutcherawy/exist,wolfgangmm/exist,kohsah/exist,jensopetersen/exist,wolfgangmm/exist,dizzzz/exist,eXist-db/exist,patczar/exist,patczar/exist,eXist-db/exist,shabanovd/exist,dizzzz/exist,wshager/exist,jessealama/exist,ambs/exist,adamretter/exist,jessealama/exist,eXist-db/exist,olvidalo/exist,olvidalo/exist,eXist-db/exist,MjAbuz/exist,jessealama/exist,joewiz/exist,ljo/exist,hungerburg/exist,windauer/exist,hungerburg/exist,jensopetersen/exist,wshager/exist,hungerburg/exist,jessealama/exist,jessealama/exist,wshager/exist,windauer/exist,zwobit/exist,wshager/exist,MjAbuz/exist,dizzzz/exist,RemiKoutcherawy/exist,wolfgangmm/exist,olvidalo/exist,patczar/exist,lcahlander/exist,kohsah/exist,kohsah/exist,patczar/exist,ambs/exist,dizzzz/exist,jensopetersen/exist,zwobit/exist,RemiKoutcherawy/exist,adamretter/exist,ljo/exist,lcahlander/exist,ambs/exist,wshager/exist,lcahlander/exist,kohsah/exist,hungerburg/exist,dizzzz/exist,jensopetersen/exist,ljo/exist,jensopetersen/exist,ljo/exist,shabanovd/exist,windauer/exist,MjAbuz/exist,ambs/exist,MjAbuz/exist,kohsah/exist,hungerburg/exist,dizzzz/exist,jessealama/exist,wshager/exist,opax/exist,windauer/exist,MjAbuz/exist,wolfgangmm/exist,zwobit/exist,opax/exist,shabanovd/exist,lcahlander/exist,patczar/exist,ambs/exist,olvidalo/exist