message: Fix acceptance tests; Use router service instead of route._router
diff: @@ -7,6 +7,7 @@ import { inject as service } from '@ember/service';
  import { camelize } from '@ember/string';
  import Features from 'ember-feature-flags/services/features';
  import config from 'ember-get-config';
  +import RouterService from '@ember/routing/router-service';
  import { notFoundURL } from 'ember-osf-web/utils/clean-url';
  import param from 'ember-osf-web/utils/param';
  @@ -27,7 +28,7 @@ const { featureFlagNames: { routes } } = config;
  export default class ResolveGuid extends Route {
  @service features!: Features;
  @service store!: Store;
  - _router!: PrivateRouter;
  + @service router!: RouterService & { _router: PrivateRouter };
  @computed(`features.${camelize(routes['registries.overview'])}`)
  get routeMap(): Record<string, string> {
  @@ -43,13 +44,13 @@ export default class ResolveGuid extends Route {
  }
  isEngineRoute(route: string): boolean {
  - return Boolean(this._router._engineInfoByRoute && route in this._router._engineInfoByRoute);
  + return Boolean(this.router._router._engineInfoByRoute && route in this.router._router._engineInfoByRoute);
  }
  generateURL(route: string, ...args: any[]): string {
  // NOTE: The router's urlFor is skipped over here as it passes the result of generate into the location
  // implementation, which would rip out the "--PATH" which is used for routing here.
  - return this._router._routerMicrolib.generate(route, ...args);
  + return this.router._router._routerMicrolib.generate(route, ...args);
  }
  async beforeModel(transition: Transition) {
  @@ -96,13 +97,12 @@ export default class ResolveGuid extends Route {
  url = `${url}?${param(transition[qpsKey])}`;
  }
  -
  - return this.replaceWith(url);
  + return this.router.replaceWith(url);
  }
  @action
  error(error: Error, transition: Transition) {
  - this.replaceWith('not-found', notFoundURL(transitionTargetURL(transition)));
  + this.router.replaceWith('not-found', notFoundURL(transitionTargetURL(transition)));
  throw error;
  }
  