Add support for the Go programming language.

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@12108 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Examples/test-suite/go/dynamic_cast_runme.go

@@ -0,0 +1,16 @@
+package main
+
+import "./dynamic_cast"
+
+func main() {
+	f := dynamic_cast.NewFoo()
+	b := dynamic_cast.NewBar()
+
+	_ = f.Blah()
+	y := b.Blah()
+
+	a := dynamic_cast.Do_test(dynamic_cast.FooToBar(y))
+	if a != "Bar::test" {
+		panic("Failed!!")
+	}
+}