Bug 183733 Implement the IScriptOjectClassInfo to provide the class infromation to support the JS code assistant.
Engine should implement the IScriptObjectClassInfo interface to return the class information for script object.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/executor/ExecutionContext.java
{
		this.tocBuilder = builder;
	}
	/**
	 * set the report document used in the context
	 * 
	 * @param doc
	 */
	public void setReportDocument( IReportDocument doc )
	{
		this.reportDoc = doc;
	}
	/**
	 * get the report document used in the context.
	 * 
	 * @return
	 */
	public IReportDocument getReportDocument( )
	{
		return reportDoc;
	}
	public void setReportDocWriter( ReportDocumentWriter docWriter )
	{
		this.docWriter = docWriter;
	}
	public ReportDocumentWriter getReportDocWriter( )
	{
		return docWriter;
	}
	/**