Improve some XQuery error messages (line and column numbers missing).
Improve some XQuery error messages (line and column numbers missing).

svn path=/trunk/eXist/; revision=6677

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