update swig on windows

winx64/bin/swigwin-4.0.0/Examples/test-suite/using2.i

@@ -0,0 +1,27 @@
+%module using2
+
+%warnfilter(SWIGWARN_PARSE_USING_UNDEF);
+
+using ::baz;
+
+%warnfilter(SWIGWARN_RUBY_WRONG_NAME) X::_FooImpl;	/* Ruby, wrong class name */
+
+%inline %{
+
+namespace X {
+  typedef int Integer;
+
+  class _FooImpl {
+  public:
+      typedef Integer value_type;
+  };
+  typedef _FooImpl Foo;
+}
+
+namespace Y = X;
+using Y::Foo;
+
+int spam(Foo::value_type x) { return x; }
+
+ 
+%}