Bug 100565 [Viewers] Tree viewer selection not revealed if unchanged
[RC3] Steps: 1. Check out org.eclipse.ui.workbench 2. Open Workbench.java 3. Ctrl-O to open Quick Outline 4. Type "r", note that the field "runEventLoop" is the first match 5. Type "u", note that the field is not shown anymore 6. Type arrow-down key, note that you cannot see the selected entry
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/AbstractTreeViewer.java
* the simultaneous addition of multiple elements.
     * </p>
     * 
     * @param parentElement
     *           the parent element
     * @param childElement
     *           the child element
     */
    public void add(Object parentElement, Object childElement) {
        add(parentElement, new Object[] { childElement });
    }
    /**
     * Adds the given SWT selection listener to the given SWT control.
     * 
     * @param control
     *           the SWT control
     * @param listener
     *           the SWT selection listener
     * @deprecated
     */
    protected void addSelectionListener(Control control,
            SelectionListener listener) {
        
    }
    /**
     * Adds a listener for expand and collapse events in this viewer. Has no
     * effect if an identical listener is already registered.
     * 
     * @param listener
     *           a tree viewer listener