Bug 251257 [Contributions] IAction.setImageDescriptor() javadoc needs to note "image vs. checked" platform discrepancy
bundles/org.eclipse.jface/src/org/eclipse/jface/action/IAction.java
* @see #TEXT
     */
    public String getText();
    /**
     * Returns the tool tip text for this action.
     * <p>
     * This method is associated with the <code>TOOL_TIP_TEXT</code> property;
     * property change events are reported when its value changes.
     * </p>
     *
     * @return the tool tip text, or <code>null</code> if none
     * @see #TOOL_TIP_TEXT
     */
    public String getToolTipText();
    /**
     * Returns the checked status of this action. Applicable only if the style is
     * <code>AS_CHECK_BOX</code> or <code>AS_RADIO_BUTTON</code>.
     * <p>
     * This method is associated with the <code>CHECKED</code> property;
     * property change events are reported when its value changes.
     * </p>
     *
     * @return the checked status
     * @see #CHECKED
     */
    public boolean isChecked();
    /**
     * Returns whether this action is enabled.
     * <p>
     * This method is associated with the <code>ENABLED</code> property;