Added meta test for buggy type trait

test/Jamfile.v2

@@ -19,6 +19,7 @@ import testing ;
   test-suite optional :
     [ run optional_test.cpp ]
     [ run ak_test_vc14_noexcept.cpp ]
+    [ run ak_test_trait_noexcept_default.cpp ]
     [ run optional_test_swap.cpp ]
     [ run optional_test_conversions_from_U.cpp ]
     [ run optional_test_tie.cpp ]

test/ak_test_trait_noexcept_default.cpp

@@ -0,0 +1,26 @@
+#include <boost/type_traits/has_nothrow_constructor.hpp>
+#include <boost/core/lightweight_test.hpp>
+#include <boost/core/lightweight_test_trait.hpp>
+
+namespace some_namespace
+{
+  class base_class
+  {
+  public:
+    base_class & operator=(const base_class &){ throw int(); }
+    virtual ~base_class() {}
+  };
+
+  class class_without_default_ctor : public base_class
+  {
+  public:
+    char data;
+    explicit class_without_default_ctor(char arg) : data(arg) {}
+  };
+}
+
+int main()
+{
+  BOOST_TEST_TRAIT_FALSE((boost::has_nothrow_default_constructor<some_namespace::class_without_default_ctor>));
+  return boost::report_errors();
+}