Fix handling of protected methods in Go when using directors.

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@12492 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Examples/test-suite/go/director_alternating_runme.go

@@ -0,0 +1,10 @@
+package main
+
+import . "./director_alternating"
+
+func main() {
+	id := GetBar().Id()
+	if id != IdFromGetBar() {
+		panic(id)
+	}
+}

Examples/test-suite/go/director_protected_runme.go

@@ -15,11 +15,17 @@ func (p *FooBar2) Pang() string {
 	return "FooBar2::pang();"
 }
 
+type FooBar3 struct{} // From Bar
+func (p *FooBar3) Cheer() string {
+	return "FooBar3::cheer();"
+}
+
 func main() {
 	b := NewBar()
 	f := b.Create()
 	fb := NewDirectorBar(&FooBar{})
 	fb2 := NewDirectorBar(&FooBar2{})
+	fb3 := NewDirectorBar(&FooBar3{})
 
 	s := fb.Used()
 	if s != "Foo::pang();Bar::pong();Foo::pong();FooBar::ping();" {
@@ -45,4 +51,23 @@ func main() {
 	if s != "Bar::pong();Foo::pong();FooBar::ping();" {
 		panic(0)
 	}
+
+	s = fb3.DirectorInterface().(*FooBar3).Cheer()
+	if s != "FooBar3::cheer();" {
+		panic(s)
+	}
+	if fb2.Callping() != "FooBar2::ping();" {
+		panic("bad fb2.callping")
+	}
+	if fb2.Callcheer() != "FooBar2::pang();Bar::pong();Foo::pong();FooBar2::ping();" {
+		panic("bad fb2.callcheer")
+	}
+
+	if fb3.Callping() != "Bar::ping();" {
+		panic("bad fb3.callping")
+	}
+
+	if fb3.Callcheer() != "FooBar3::cheer();" {
+		panic("bad fb3.callcheer")
+	}
 }