Bug 217801 [CommonNavigator] Capability filtering of commonWizard extensions uses wrong identifier
tests/org.eclipse.ui.tests.navigator/src/org/eclipse/ui/tests/navigator/OpenTest.java
public static final String COMMON_NAVIGATOR_INSTANCE_ID = "org.eclipse.ui.navigator.ProjectExplorer"; 
	public static final String COMMON_NAVIGATOR_RESOURCE_EXT = "org.eclipse.ui.navigator.resourceContent";