test-suite fixes (2) for compilers that don't support varargs

Split director_exception testcase into two so that testing throw(),
with no arguments, that is nothrows, can be tested separately to throw()
taking arguments. [The throw keyword needs to be removed for C++
compilation in C++11 and later when it was deprecated.]

Examples/test-suite/director_exception_nothrow.i

@@ -0,0 +1,28 @@
+%module(directors="1") director_exception_nothrow
+
+%include "std_string.i"
+
+%feature("director") Bar;
+
+%{
+#if defined(_MSC_VER)
+  #pragma warning(disable: 4290) // C++ exception specification ignored except to indicate a function is not __declspec(nothrow)
+#endif
+%}
+
+%inline %{
+#include <string>
+
+class Base
+{
+public:
+  virtual ~Base() throw() {}
+};
+
+
+class Bar : public Base
+{
+public:
+  virtual std::string pang() throw() { return "Bar::pang()"; }
+};
+%}