core/src/main/java/com/moparisthebest/mirror/convert/InstanceFilter.java
public static <E, F extends E> List<F> listFilter(Iterable<? extends E> elements, Class<F> clazz) {
		return collectionFilter(new ArrayList<F>(), elements, clazz);
	}
public static <E, F extends E> List<F> listFilter(Iterable<? extends E> elements, Class<F> clazz) {
		return collectionFilter(new ArrayList<F>(), elements, clazz);
	}
Assumes targetKinds and E are sensible.