Bug 217985 Port 3.3.2 CommonNavigator performance improvements to 3.4
bundles/org.eclipse.ui.navigator/src/org/eclipse/ui/internal/navigator/extensions/Binding.java
private final Set rootPatterns = new HashSet();
	private final Set includePatterns = new HashSet();
	private final Set excludePatterns = new HashSet();
	private final String TAG_EXTENSION;
	protected Binding(String tagExtension) {
		TAG_EXTENSION = tagExtension;
	}
	/*
	 * (non-Javadoc)
	 *