Bug 36456 Type heirarchy show final class icon only on double click [type hierarchy]
When opening a type heirarchy, the icons for the heirarchy do not show final classes (ie. the little 'F' in the icon). When the icon is double clicked to open the class, the icon changes.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/typehierarchy/TypeHierarchyViewPart.java
Viewer[] trackedViewers= new Viewer[nHierarchyViewers + 1];
		for (int i= 0; i < nHierarchyViewers; i++) {
			trackedViewers[i]= fAllViewers[i];
		}
		trackedViewers[nHierarchyViewers]= fMethodsViewer;
		fSelectionProviderMediator= new SelectionProviderMediator(trackedViewers);
		IStatusLineManager slManager= getViewSite().getActionBars().getStatusLineManager();
		fSelectionProviderMediator.addSelectionChangedListener(new StatusBarUpdater(slManager));
		
		getSite().setSelectionProvider(fSelectionProviderMediator);
		getSite().getPage().addPartListener(fPartListener);
		
		
		IJavaElement input= null; 
		if (fMemento != null) {
			restoreState(fMemento, input);
		} else if (input != null) {
			setInputElement(input);
		} else {
			setViewerVisibility(false);
		}
		WorkbenchHelp.setHelp(fPagebook, IJavaHelpContextIds.TYPE_HIERARCHY_VIEW);
		
		fActionGroups= new CompositeActionGroup(new ActionGroup[] {
				new NewWizardsActionGroup(this.getSite()),
				new OpenEditorActionGroup(this), 
				new OpenViewActionGroup(this), 
				fCCPActionGroup= new CCPActionGroup(this), 
				new GenerateActionGroup(this),
				new RefactorActionGroup(this),