More varargs overload testing for Go.

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@12497 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Examples/test-suite/go/varargs_overload_runme.go

@@ -23,4 +23,16 @@ func main() {
 	if varargs_overload.Vararg_over3(2, 2.2, "hey") != "2 2.2 hey" {
 		panic(5)
 	}
+
+	if varargs_overload.Vararg_over4("Hello") != "Hello" {
+		panic(6)
+	}
+
+	if varargs_overload.Vararg_over4(123) != "123" {
+		panic(7)
+	}
+
+	if varargs_overload.Vararg_over4("Hello", 123) != "Hello" {
+		panic(8)
+	}
 }