Bug 132103 No objects under Context in palette when scripting a data set
Steps to reproduce: 1.New a data set and select it 2.Swith to script view, choose "onFetch" and open palette Expected result: Objects:this, row and reportContext should be given under Context And other objects available for other methods(e.g. BeforeOpen) should be there as well. Actual result: Nothing under Context The relative bug is #126110
UI/org.eclipse.birt.report.designer.core/src/org/eclipse/birt/report/designer/util/DEUtil.java
slotID = ThemeHandle.STYLES_SLOT;
		}
		return slotID;
	}
	/**
	 * Get the slot id of child
	 * 
	 * @param parent
	 * @param child
	 * @return slot ID
	 */
	public static int findSlotID( Object parent, Object child )
	{
		assert parent instanceof DesignElementHandle;
		assert child instanceof DesignElementHandle;
		int slotID = ( (DesignElementHandle) parent )
				.findContentSlot( (DesignElementHandle) child );
		return slotID;
	}
	/**
	 * Get the slot id of child If the slot id was not found, returns the
	 * default slot id
	 * 
	 * @param parent
	 * @param child
	 * @return slot id
	 */
	public static int getSlotID( Object parent, Object child )
	{
		assert parent instanceof DesignElementHandle;