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/LabelScriptExecutor.java
eh.onPageBreak( label, context.getReportContext( ) );			
		} catch ( Exception e )
		{
			addException( context, e );
		}
	}
	private static ILabelEventHandler getEventHandler( ReportItemDesign design,
			ExecutionContext context )
	{
		LabelHandle handle = ( LabelHandle ) design.getHandle( );
		if ( handle == null )
			return null;
		return getEventHandler( handle, context );
	}
	private static ILabelEventHandler getEventHandler( LabelHandle handle,
			ExecutionContext context )
	{
		ILabelEventHandler eh = null;
		try
		{
			eh = ( ILabelEventHandler ) getInstance( handle, context );
		} catch ( ClassCastException e )
		{
			addClassCastException( context, e, handle.getEventHandlerClass( ),
					ILabelEventHandler.class );
		}
		return eh;
	}
}