"create implementation of member functions" ignores defaulted dtor

there's a small bug in the lovely "create implementation of member functions" feature where defaulted destructors won't be interpreted as implemented.

consider this code:

foo.h:

class foo
{
   ~foo();
};

the function "create implementation of member functions" will suggest to create a member function if the function, if the dtor defaulted:

foo.cpp:

foo::~foo() = default;

however when the dtor is implemented, it does not suggest to create the member function (which is the expected behaviour):

foo.cpp:

foo::~foo()
{}