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/src/org/eclipse/ui/navigator/CommonNavigator.java
* Constructs and returns an instance of {@link CommonViewer}. The ID of
	 * the Eclipse view part will be used to create the viewer. The ID is
	 * important as some extensions indicate they should only be used with a
	 * particular viewer ID.
	 * <p>
	 * 
	 * @param aParent
	 *            A composite parent to contain the Common Viewer
	 * @return An initialized instance of CommonViewer
	 */
	protected CommonViewer createCommonViewer(Composite aParent) {
		CommonViewer aViewer = new CommonViewer(getViewSite().getId(), aParent,
				SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL);
		initListeners(aViewer);
		aViewer.getNavigatorContentService().restoreState(memento);
		return aViewer;
	}
	/**
	 * <p>
	 * Adds the listeners to the Common Viewer.
	 * </p>
	 * 
	 * @param viewer
	 *            The viewer
	 * @since 2.0
	 */
	protected void initListeners(TreeViewer viewer) {
		viewer.addDoubleClickListener(new IDoubleClickListener() {
			public void doubleClick(DoubleClickEvent event) {
				try {