Bug 266769 [CommonNavigator] Reorg test identifiers
tests/org.eclipse.ui.tests.navigator/src/org/eclipse/ui/tests/navigator/SorterTest.java
public SorterTest() {
		_navigatorInstanceId = TEST_VIEWER;
	}
	private IStatus _status;
	private int _statusCount;
	
	public void testSorterMissing() throws Exception {
		TestResourceContentProvider._returnBadObject = true;
		_contentService.bindExtensions(new String[] { TEST_SORTER_CONTENT },
				false);
		_contentService.getActivationService().activateExtensions(
				new String[] { TEST_SORTER_CONTENT }, true);
		refreshViewer();