Bug 315281 update copyrights for 3.6
bundles/org.eclipse.ui.navigator/src/org/eclipse/ui/navigator/INavigatorContentDescriptor.java
* @return True if and only if the extension is enabled for the element.
	 */
	boolean isTriggerPoint(Object anElement);
	/**
	 * Determine if this content extension could provide the given element as a
	 * child.
	 * 
	 * <p>
	 * This method is used to determine what the parent of an element could be
	 * for Link with Editor support.
	 * </p>
	 * 
	 * @param anElement
	 *            The element that should be used for the evaluation.
	 * @return True if and only if the extension might provide an object of this
	 *         type as a child.
	 */
	boolean isPossibleChild(Object anElement);
	/**
	 * A convenience method to check all elements in a selection.
	 * 
	 * @param aSelection
	 *            A non-null selection
	 * @return True if and only if every element in the selection is a possible
	 *         child.
	 */
	boolean arePossibleChildren(IStructuredSelection aSelection);
	/**
	 * @return Returns the suppressedExtensionId or null if none specified.
	 */