update swig on windows

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

@@ -0,0 +1,25 @@
+/* This test confirms the fix to sourceforge bug #3478922 for R */
+
+%module overload_method
+
+#ifdef SWIGOCAML
+%warnfilter(SWIGWARN_PARSE_KEYWORD) method;
+#endif
+
+%inline %{
+class Base
+   {
+   public:
+
+   Base() : x(42) {}
+
+   int method() const { return x; }
+
+   void overloaded_method(int aArg) { x = aArg; }
+   int overloaded_method() const { return x; }
+
+   private:
+
+   int x;
+   };
+%}