Warning suppression in li_std_vector_extra testcase for clang

Examples/test-suite/li_std_vector_extra.i

@@ -12,6 +12,17 @@
 #include <algorithm>
 #include <functional>
 #include <numeric>
+
+
+#if defined(__clang__)
+// Suppress:
+// warning: destination for this 'memset' call is a pointer to dynamic class
+//       'Test::B'; vtable pointer will be overwritten [-Wdynamic-class-memaccess]
+//         memset(v_def,0,sizeof(Type));
+// Better generated code is probably needed though
+#pragma clang diagnostic ignored "-Wdynamic-class-memaccess"
+#endif
+
 %}
 
 namespace std {