Bug 16308 [DND] dnd from os to navigator shows an incorrect icon
smoke test for 0518 it shows a move icon although move will not happen
bundles/org.eclipse.ui.views/src/org/eclipse/ui/views/navigator/NavigatorDropAdapter.java
*/
	private Shell getShell() {
		return getViewer().getControl().getShell();
	}
	
	/**
	 * Returns an error status with the given info.
	 */
	private IStatus info(String message) {
		return new Status(IStatus.INFO, PlatformUI.PLUGIN_ID, 0, message, null);
	}
	
	/**
	 * Adds the given status to the list of problems.  Discards
	 * OK statuses.  If the status is a multi-status, only its children
	 * are added.
	 */
	private void mergeStatus(MultiStatus status, IStatus toMerge) {
		if (!toMerge.isOK()) {
			status.merge(toMerge);
		}
	}
	
	/**
	 * Creates a status object from the given list of problems.
	 */
	private IStatus multiStatus(List problems, String message) {
		IStatus[] children = new IStatus[problems.size()];
		problems.toArray(children);
		if (children.length == 1) {