Bug 119398 Using RenderTask to render pdf file but the master page information lost.
Description: Using RenderTask to render pdf file but the master page information lost. Steps to reproduce: 1. Generate attached case1.rptdesign to report document 2. Using RenderTask to render report document to pdf file. Expected result: Master Page contents show in pdf file. Actual result: In generated pdf file, I saw "NO DATA FOUND!!!" instead of master page contents
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/executor/ReportItemExecutor.java
* toc builder used to build the TOC of IReportContent
	 */
	protected TOCBuilder tocBuilder;
	/**
	 * construct a report item executor by giving execution context and report
	 * executor visitor
	 * 
	 * @param context
	 *            the executor context
	 * @param visitor
	 *            the report executor visitor
	 */
	protected ReportItemExecutor( ExecutionContext context,
			IReportItemVisitor visitor )
	{
		this.context = context;
		this.visitor = visitor;
		this.report = context.getReportContent( );
		this.tocBuilder = context.getTOCBuilder( );
	}
	/**
	 * Execute a report item design and transfer report instance to emitter by
	 * calling this method.
	 * <p>
	 * According to the report item design and current context information,
	 * executor calculate expression in report item design, get data instance
	 * from data source, and fill it into the report item instance, and set
	 * property for the report item instance. At last pass the instance to
	 * <code>emitter</code>
	 *