Bug 125011 [Contributions] ActionContributionItem should use text for tooltip in toolitems
If an action is added to a toolbar, and it has a name, but no tooltip set, the name should be used as the tooltip (except when the text is actually displayed on the toolitem using setText()) Clients sometimes forget to set the tooltip text when no specific tooltip message exists.
bundles/org.eclipse.jface/src/org/eclipse/jface/action/ActionContributionItem.java
/**
     * Mode bit: Show text on tool items, even if an image is present.
     * If this mode bit is not set, text is only shown on tool items if there is 
     * no image present.
     * 
     * @since 3.0
     */
    public static int MODE_FORCE_TEXT = 1;
    
    private static final String ellipsis = "..."; 
    private static boolean USE_COLOR_ICONS = true;
    /**
     * Returns whether color icons should be used in toolbars.
     * 
     * @return <code>true</code> if color icons should be used in toolbars, 
     *   <code>false</code> otherwise
     */
    public static boolean getUseColorIconsInToolbars() {
        return USE_COLOR_ICONS;
    }