fix(subscribeToResult): throw error in subscriber with inner observable
fix(subscribeToResult): throw error in subscriber with inner observable

- closes #2618

Brocco/RxJS,kwonoj/RxJS,martinsik/rxjs,jayphelps/rxjs,martinsik/rxjs,kwonoj/RxJS,ReactiveX/RxJS,jayphelps/rxjs,ReactiveX/RxJS,martinsik/rxjs,trxcllnt/RxJS,Brocco/RxJS,trxcllnt/RxJS,jayphelps/rxjs,ReactiveX/RxJS,jayphelps/rxjs,trxcllnt/RxJS,ReactiveX/rxjs,benlesh/RxJS,Brocco/RxJS,ReactiveX/rxjs,benlesh/RxJS,benlesh/RxJS,jayphelps/rxjs,ReactiveX/RxJS,IgorMinar/RxJS,IgorMinar/RxJS,kwonoj/RxJS,martinsik/rxjs,benlesh/RxJS,ReactiveX/rxjs,trxcllnt/RxJS,Brocco/RxJS,ReactiveX/rxjs,kwonoj/RxJS