Bug 294096 Changing a MPart's name does not alter the CTabItem's text
bundles/org.eclipse.e4.ui.workbench.renderers.swt/src/org/eclipse/e4/workbench/ui/renderers/swt/StackRenderer.java
};
		eventBroker.subscribe(IUIEvents.UIItem.Topic, itemUpdater);
	}
	public Object createWidget(MUIElement element, Object parent) {
		Widget newWidget = null;
		if (!(element instanceof MPartStack) || !(parent instanceof Composite))
			return null;
		Widget parentWidget = (Widget) parent;
		boolean showCloseAlways = element instanceof MEditorStack;
		int styleModifier = (element instanceof MEditorStack)
				|| (element instanceof MViewStack) ? SWT.CLOSE : 0;
		Composite stylingWrapper = createWrapperForStyling(
				(Composite) parentWidget, getContext(element));
		
		
		
		final CTabFolder ctf = new ETabFolder(stylingWrapper, SWT.BORDER
				| styleModifier);
		configureForStyling(ctf);
		ctf.setUnselectedCloseVisible(showCloseAlways);
		newWidget = ctf;
		final IEclipseContext folderContext = getContext(element);
		folderContext.set("canCloseFunc", new IValueFunction() { 
					public Object getValue() {
						return true;
					}
				});
		folderContext.set(FOLDER_DISPOSED, Boolean.FALSE);
		final IEclipseContext toplevelContext = getToplevelContext(element);
		final Trackable updateActiveTab = new Trackable(folderContext) {