REGRESSION: dist_id::here() does not compile

[Dan Bonachea]

#include <upcxx/upcxx.hpp>
#include <iostream>
#include <assert.h>

int main() {
  upcxx::init();

  upcxx::dist_object<int> dobj(1);
  upcxx::dist_id<int> di = dobj.id();
  upcxx::dist_object<int> &ref = di.here();
  assert(&ref == &dobj);

  upcxx::team &tm = upcxx::local_team();
  upcxx::team_id ti = tm.id();
  upcxx::team &tr = ti.here();
  assert(&tr == &tm);

  upcxx::barrier();
  if (!upcxx::rank_me()) std::cout << "SUCCESS" << std::endl;

  upcxx::finalize();
  return 0;
}

On dirac/gcc-9.2 using develop @ 726c75b

In file included from /usr/local/pkg/upcxx-dirac/gcc-9.2.0/nightly-2020.02.06/upcxx.debug.gasnet_seq.ibv/include/upcxx/upcxx.hpp:24,
                 from id-here.cc:1:
/usr/local/pkg/upcxx-dirac/gcc-9.2.0/nightly-2020.02.06/upcxx.debug.gasnet_seq.ibv/include/upcxx/dist_object.hpp: In instantiation of 'upcxx::dist_object<T>& upcxx::dist_id<T>::here() const [with T = int]':
id-here.cc:10:42:   required from here
/usr/local/pkg/upcxx-dirac/gcc-9.2.0/nightly-2020.02.06/upcxx.debug.gasnet_seq.ibv/include/upcxx/dist_object.hpp:32:65: error: 'struct upcxx::detail::future_header_promise<upcxx::dist_object<int>&>' has no member named 'get_future'
   32 |       return detail::registered_promise<dist_object<T>&>(dig_)->get_future().result();
      |           

This is a regression relative to the 2019.9.0 release, probably introduced in pull request #141

[john bachan]

Fixed issue 312. dist_id::here() was broken by the "promise lifetime GC" refactor (PR 141).

→ <<cset c09cef51fdf7>>