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/script/internal/ListScriptExecutor.java
{
			IList list = new List( listHandle );
			if ( handleJS( list, listHandle.getOnPrepare( ), context ).didRun( ) )
				return;
			IListEventHandler eh = getEventHandler( listHandle, context );
			if ( eh != null )
				eh.onPrepare( list, context.getReportContext( ) );
		} catch ( Exception e )
		{
			addException( context, e );
		}
	}
	public static void handleOnCreate( IListContent content,
			ExecutionContext context )
	{
		try
		{
			ReportItemDesign listDesign = ( ReportItemDesign ) content
					.getGenerateBy( );
			IListInstance list = new ListInstance( content, context );
			if ( handleJS( list, listDesign.getOnCreate( ), context ).didRun( ) )
				return;
			IListEventHandler eh = getEventHandler( listDesign, context );
			if ( eh != null )
				eh.onCreate( list, context.getReportContext( ) );
		} catch ( Exception e )
		{
			addException( context, e );
		}
	}