Improved type system

src/types/Pointer.go

@@ -1,7 +1,5 @@
 package types
 
-var AnyPointer = &Pointer{To: nil}
-
 // Pointer is the address of an object.
 type Pointer struct {
 	To Type
@@ -10,7 +8,7 @@ type Pointer struct {
 // Name returns the type name.
 func (p *Pointer) Name() string {
 	if p.To == nil {
-		return "Pointer"
+		return "*Any"
 	}
 
 	return "*" + p.To.Name()