use exception specification instead of %exception to handle STL error checking

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk/SWIG@7352 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Lib/python/std_set.i

@@ -47,7 +47,7 @@
      return self->find(x) != self->end();
    }
 
-   value_type __getitem__(difference_type i) const {
+   value_type __getitem__(difference_type i) const throw (std::out_of_range) {
      return *(swig::cgetpos(self, i));
    }
   };