std::reference_wrapper doesn't define argument_type for classes containing a typedef member named argument_type

C++14 section 20.9.3 paragraph 3 states that a reference_wrapper<T> shall define a typedef argument_type if T is a class type with a member type named argument_type. The implementation does not support this, and only defines the member types described in paragraphs 2, 3, and 4 if T inherits or is convertible to unary_function or binary_function.