message: add idr in solver_factory
diff: @@ -151,6 +151,7 @@ const std::map<std::string, std::function<std::unique_ptr<gko::LinOpFactory>(
  {"cg", create_solver<gko::solver::Cg<>>},
  {"cgs", create_solver<gko::solver::Cgs<>>},
  {"fcg", create_solver<gko::solver::Fcg<>>},
  + {"idr", create_solver<gko::solver::Idr<>>},
  {"gmres",
  [](std::shared_ptr<const gko::Executor> exec,
  std::shared_ptr<const gko::LinOpFactory> precond) {
  