code: function getRouteNamespaces(spec) {
      let names = new Map();
      for (let id of spec.routeIDs) {
          let [namespace, explicit] = Namespace.forRoute(spec.route(id));
          namespace.log.push(`Route ${id} maps to ${namespace.fullName} (explicit = ${explicit})`);
          names.set(id, [namespace, explicit]);
      }
      return names;
  }
docs: Generate the names for all route ids in the specification