Method clone

src/main/java/wyil/lang/WyilFile.java:6253–6256

(Syntactic.Item[] operands)

			}

			@Override
			public Type.Union clone(Syntactic.Item[] operands) {
				return new Union(ArrayUtils.toArray(Type.class, operands));
			}

			@Override
			public <T extends Type> List<T> filter(Class<T> kind) {