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
{
			if ( item.getVisibility( ) != null )
			{
				for ( int i = 0; i < item.getVisibility( ).count( ); i++ )
				{
					addExpression( item.getVisibility( ).getRule( i )
							.getExpression( ) );
				}
			}
			addExpression( item.getTOC( ) );
			addExpression( item.getBookmark( ) );
			addExpression( item.getOnCreate( ) );
			
			handleHighlightExpressions( item.getHighlight( ) );
			handleMapExpressions( item.getMap( ) );
			handleNamedExpressions ( item.getNamedExpressions( ) );
		}
		
		/**
		 * handle named expression
		 * @param namedExpressions a map of of named expression
		 */
		protected void handleNamedExpressions( Map namedExpressions )
		{
			Collection exprs = namedExpressions.values();
			Iterator exprIter = exprs.iterator();
			while( exprIter.hasNext( ) )
			{
				addExpression( (Expression)exprIter.next() );
			}