Bug 129144 Support suppressDuplicates property on table row in report engine
See 129143 for detail. This only needs to be supported for data item in a detail row of a table.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/parser/EngineIRVisitor.java
ListGroupDesign listGroup = new ListGroupDesign( );
		setupGroup( listGroup, handle );
		ListBandDesign header = createListBand( handle.getHeader( ) );
		listGroup.setHeader( header );
		
		String tocExpr = handle.getTocExpression( );
		if ( null != tocExpr && !"".equals( tocExpr.trim( ) ) ) 
		{
			if ( header.getContentCount( ) > 0 )
			{
				ReportItemDesign item = (ReportItemDesign) header
						.getContent( 0 );
				item.setTOC( new Expression( tocExpr ) );
			}
		}
		ListBandDesign footer = createListBand( handle.getFooter( ) );
		listGroup.setFooter( footer );
		currentElement = listGroup;
	}
	/**
	 * create a table group using the DE's TableGroup.
	 * 
	 * @param handle
	 *            De's table group
	 * @return engine's table group
	 */
	public void visitTableGroup( TableGroupHandle handle )
	{
		TableGroupDesign tableGroup = new TableGroupDesign( );
		setupGroup( tableGroup, handle );