Bug 154832 Wrong node is added to Report Parameters for cascading parameter in Palette view
Description: Wrong node is added to Report Parameters for cascading parameter in Palette view. Steps to reproduce: 1. New a report, add a cascading parameter 2. Switch to Script tab in Editor view, and then switch to Palette view 3. Expand Report Parameters node Expected result: A cascading parameter group is added to Report Parameters node Actual result: Expect a cascading parameter group is added to Report Parameters node, the children of the cascading parameter group are added as scalar parameters
UI/org.eclipse.birt.report.designer.ui.editors.schematic/src/org/eclipse/birt/report/designer/internal/ui/editors/script/JSEditor.java
if ( eleHandle.getDefn( ) != null )
			{
				
				return eleHandle.getDefn( ).getMethods( ).toArray( );
			}
		}
		return new Object[]{};
	}
	public void dispose( )
	{
	}
	public void inputChanged( Viewer viewer, Object oldInput, Object newInput )
	{
		viewer.refresh( );
	}
	public String getText( Object element )
	{
		if ( element instanceof IPropertyDefn )
		{
			IPropertyDefn eleDef = (IPropertyDefn) element;
			return eleDef.getName( );
		}
		return NO_TEXT;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.viewers.ILabelProvider#getImage(java.lang.Object)
	 */
	public Image getImage( Object element )