add a test for shared_ptr with director

Examples/test-suite/cpp11_shared_ptr_director.i

@@ -0,0 +1,23 @@
+%module(directors="1") "cpp11_shared_ptr_director"
+
+%{
+#include <memory>
+%}
+
+%include "std_shared_ptr.i";
+%shared_ptr(Created);
+%feature("director") Creator;
+
+%inline %{
+struct Created {};
+
+struct Creator {
+  Creator() {};
+  virtual std::shared_ptr<Created> create() = 0;
+  virtual ~Creator() {}
+};
+
+void crash(Creator* creator) {
+  std::shared_ptr<Created> ptr = creator->create();
+}
+%}

Examples/test-suite/ruby/cpp11_shared_ptr_director_runme.rb

@@ -0,0 +1,24 @@
+require 'cpp11_shared_ptr_director'
+
+include Cpp11_shared_ptr_director
+
+class Derived < Creator
+
+  def initialize(flag)
+    @return_none = flag
+    super()
+  end
+
+  def create
+    if @return_none
+      nil
+    else
+      Created.new
+    end
+  end
+
+end
+
+crash(Derived.new(false))
+crash(Derived.new(true))
+