Code review comment for lp:~nbrinza/zorba/error-messages

This branch has some conflicts with the current trunk. Also, if I merge the trunk, I get the following compile error:

/home/mbrantner/zorba/sandbox/src/compiler/parser/xquery_parser.y: In member function ‘virtual int zorba::xquery_parser::parse()’:
/home/mbrantner/zorba/sandbox/src/compiler/parser/xquery_parser.y:2653:94: error: ‘class zorba::VarInDecl’ has no member named ‘get_name’
/home/mbrantner/zorba/sandbox/src/compiler/parser/xquery_parser.y:2679:75: error: ‘class zorba::VarInDecl’ has no member named ‘get_name’