Bug 85774 [Presentations] bad tooltips in r21 presentation on Linux
The tooltips for the view menu and close buttons contain the "&" character on GTK.
bundles/org.eclipse.ui.presentations.r21/src/org/eclipse/ui/internal/presentations/R21BasicStackPresentation.java
private MouseListener titleMouseListener = new MouseAdapter() {
        public void mouseDown(MouseEvent e) {
            if (e.widget instanceof Control) {
                Control ctrl = (Control) e.widget;
                Point globalPos = ctrl.toDisplay(new Point(0, titleLabel
                        .getBounds().height));
                if ((e.button == 1) && overImage(e.x))
                    showSystemMenu(globalPos);
            }
        }
    };
    private Listener menuListener = new Listener() {
        /* (non-Javadoc)
         * @see org.eclipse.swt.widgets.Listener#handleEvent(org.eclipse.swt.widgets.Event)
         */
        public void handleEvent(Event event) {
            Point pos = new Point(event.x, event.y);
            showSystemMenu(pos);
        }
    };
    private Listener dragListener = new Listener() {
        public void handleEvent(Event event) {
            Point localPos = new Point(event.x, event.y);
            CTabItem tabUnderPointer = paneFolder.getItem(localPos);
            
            if (tabUnderPointer == null) {
                if (paneFolder.getTabPosition() == SWT.BOTTOM
                        && localPos.y < paneFolder.getControl().getBounds().height
                                - paneFolder.getTabHeight())
                    tabUnderPointer = paneFolder.getSelection();