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/TreeViewPalettePage.java
*     Actuate Corporation - Copy and change to fit BIRT requirement 
 *******************************************************************************/
package org.eclipse.birt.report.designer.internal.ui.editors.script;
import org.eclipse.birt.report.designer.core.model.SessionHandleAdapter;
import org.eclipse.birt.report.designer.internal.ui.dialogs.ExpressionTreeSupport;
import org.eclipse.birt.report.designer.internal.ui.editors.IReportEditor;
import org.eclipse.birt.report.designer.ui.editors.MultiPageReportEditor;
import org.eclipse.birt.report.designer.ui.editors.pages.ReportScriptFormPage;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.gef.ui.palette.PaletteViewerProvider;
import org.eclipse.gef.ui.views.palette.PalettePage;
import org.eclipse.jface.text.source.SourceViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Tree;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.forms.editor.IFormPage;
import org.eclipse.ui.part.Page;
/**
 * The default page for the PaletteView that works in conjunction with a
 * PaletteViewerProvider.
 */
public class TreeViewPalettePage extends Page implements
		PalettePage,
		IAdaptable
{