Implementing recursive lambda with MethodHandle

[Alex Buckley]

Neal Gafter wrote:
> I think it is fine for values of function type to inherit these
> methods from Object, and for getClass() to return MethodHandle.class
> or the class of some compiler-generated implementation object.

Right. Though I would say that because function types are not class 
types, inheritance is not the right mechanism. It is necessary to 
specify that a function type implicitly declares methods like Object's 
public methods, akin to what interface types do.

Alex