Method constructor

packages/core/test/acceptance/di_spec.ts:1483–1486

(
                public injector: Injector,
                @SkipSelf() public parentInjector: Injector,
              )

            })
            class ChildComponent {
              constructor(
                public injector: Injector,
                @SkipSelf() public parentInjector: Injector,
              ) {}
            }

            TestBed.configureTestingModule({