Added missing noexcept

Author: cschreib

tests/tests_common.hpp

@@ -15,7 +15,7 @@ struct test_object {
 
  test_object();
  explicit test_object(state s);
- virtual ~test_object();
+ virtual ~test_object() noexcept;
 
  test_object(const test_object&) = delete;
  test_object(test_object&&) = delete;