Added a protected destructor in derived class

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@5442 626c5289-ae23-0410-ae9c-e8d60b6d4f22

SWIG/Examples/test-suite/virtual_destructor.i

@@ -1,6 +1,8 @@
 /*
 This testcase checks that a virtual destructor with void as a parameter is 
 correctly handled.
+Also tests a class with protected destructor derived from a class with a
+public destructor.
 */
 
 %module virtual_destructor
@@ -13,4 +15,8 @@ public:
   virtual ~VirtualVoidDestructor(void) { };
 };
 
+class Derived : public VirtualVoidDestructor {
+protected:
+  virtual ~Derived() {};
+};
 %}