Bug 262606 [CommonNavigator] Up button after "go into" has bad tooltip text
I20090127-0100 1) Select a Java project 2) right-click, select "Go Into" 3) Hover over the Up button, the tooltip text is impressive
bundles/org.eclipse.ui.navigator.resources/src/org/eclipse/ui/navigator/resources/ProjectExplorer.java
if (element != null && !(element instanceof IWorkingSet)
				&& getCommonViewer() != null) {
			FrameList frameList = getCommonViewer().getFrameList();
			int index = frameList.getCurrentIndex();
			IWorkingSet ws = null;
			while (index >= 0) {
				Frame frame = frameList.getFrame(index);
				if (frame instanceof TreeFrame) {
					Object input = ((TreeFrame) frame).getInput();
					if (input instanceof IWorkingSet && !(input instanceof IAggregateWorkingSet)) {
						ws = (IWorkingSet) input;
						break;
					}
				}
				index--;
			}
			if (ws != null) {
				return NLS.bind(WorkbenchNavigatorMessages.ProjectExplorer_toolTip3,
						new String[] { ws.getLabel(), result });
			}
			return result;
		}
		return result;
	}
	/**
	 * @param mode
	 * @noreference This method is not intended to be referenced by clients.
	 * @since 3.4