public void CloneLiteral()
{
var a = new Integer(1);
var a1 = a.Clone();
var b = new Logical(true);
var b1 = b.Clone();
Assert.IsTrue(_.Same(a, a1));
Assert.AreNotSame(a, a1);
Assert.IsTrue(_.Same(b, b1));
Assert.AreNotSame(b, b1);
}