Bug 122419 Masterpage cannot access Data Set properties
If one references a data set property in the master page, i.e. row["title"], then the viewer displays only 'undefined'.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/data/dte/ReportQueryBuilder.java
assert query != null;
				
				HashMap queryMap = report.getQueryToValueExprMap( );
				assert queryMap != null;
				HashMap exprToNameMap = report.getExprToNameMap( );
				assert exprToNameMap != null;
				
				ArrayList valueExprs = (ArrayList)queryMap.get( query );
				if( valueExprs == null )
				{
					valueExprs = new ArrayList( );
				}
				if( valueExprs.contains( data.getValue( )) == false )
				{
					valueExprs.add( data.getValue( ));
					if ( data.getName( ) != null )
					{
						exprToNameMap.put( data.getValue( ), data.getName( ) );
					}
				}
				queryMap.put( query, valueExprs );
			}
		}
		/**
		 * handle expressions common to all report items
		 * 
		 * @param item
		 *            a report item
		 */
		protected void handleReportItemExpressions( ReportItemDesign item )