update swig on windows

winx64/bin/swigwin-4.0.0/Examples/test-suite/smart_pointer_const2.i

@@ -0,0 +1,20 @@
+%module smart_pointer_const2
+
+%inline %{
+struct Foo {
+   int x;
+   int getx() const { return x; }
+   int test() { return x; }
+};
+
+class Bar {
+   Foo *f;
+public:
+   Bar(Foo *f) : f(f) { }
+   const Foo *operator->() {
+      return f;
+   }
+};
+%}
+
+