Method compare

src/main/java/wyil/util/WyilUtils.java:385–388

(Template.Variable t1, Template.Variable t2)

		ArrayList<Template.Variable> nholes = new ArrayList<>(holes);
		Collections.sort(nholes, new Comparator<Template.Variable>() {
			@Override
			public int compare(Template.Variable t1, Template.Variable t2) {
				return t1.getName().compareTo(t2.getName());
			}
		});
		// Done
		return new Tuple<>(nholes);