Fix VM memory allocation optimizations by reducing what we allocate on the heap

internal/builtins/socket.go

@@ -23,7 +23,7 @@ func Socket(args ...object.Object) object.Object {
 		proto  int
 	)
 
-	arg := args[0].(*object.String).Value
+	arg := args[0].(object.String).Value
 
 	switch strings.ToLower(arg) {
 	case "unix":
@@ -61,5 +61,5 @@ func Socket(args ...object.Object) object.Object {
 		}
 	}
 
-	return &object.Integer{Value: int64(fd)}
+	return object.Integer{Value: int64(fd)}
 }