test(toArray): add marble tests for toArray
test(toArray): add marble tests for toArray

Refactor test with multiple values and add missing tests for toArray operator.

mattpodwysocki/RxJS,jadbox/RxJS,jayphelps/rxjs,RxJS-CN/RxJS-Docs-CN,benlesh/RxJS,jinroh/RxJS,trxcllnt/RxJS,benlesh/RxJS,staltz/RxJSNext,robwormald/RxJS,trxcllnt/RxJS,justinwoo/RxJS,adrianomelo/RxJS-1,benlesh/RxJS,justinwoo/RxJS,Igorbek/rxjs5,jayphelps/rxjs,martinsik/rxjs,IgorMinar/RxJS,staltz/RxJSNext,adrianomelo/RxJSNext,ReactiveX/rxjs,gluck/RxJS,luisgabriel/RxJS,gluck/RxJS,jinroh/RxJS,RxJS-CN/RxJS-Docs-CN,benlesh/RxJS,figueredo/RxJS,luisgabriel/RxJS,adrianomelo/RxJSNext,SangKa/RxJS-Docs-CN,gluck/RxJS,elliotschi/rxjs,SangKa/RxJS-Docs-CN,martinsik/rxjs,jayphelps/rxjs,elliotschi/rxjs,adrianomelo/RxJSNext,RxJS-CN/RxJS-Docs-CN,gluck/RxJS,kwonoj/RxJS,mattpodwysocki/RxJS,saneyuki/RxJS,martinsik/rxjs,jayphelps/rxjs,jadbox/RxJS,martinsik/rxjs,jadbox/RxJS,saneyuki/RxJS,trxcllnt/RxJS,jayphelps/rxjs,jadbox/RxJS,justinwoo/RxJS,kwonoj/RxJS,Brocco/RxJS,Igorbek/rxjs5,Brocco/RxJS,ReactiveX/RxJS,Brocco/RxJS,Igorbek/rxjs5,adrianomelo/RxJS-1,jinroh/RxJS,ReactiveX/RxJS,ReactiveX/RxJS,staltz/RxJSNext,jinroh/RxJS,adrianomelo/RxJSNext,adrianomelo/RxJS-1,figueredo/RxJS,SangKa/RxJS-Docs-CN,robwormald/RxJS,ReactiveX/rxjs,figueredo/RxJS,ReactiveX/rxjs,luisgabriel/RxJS,trxcllnt/RxJS,IgorMinar/RxJS,ReactiveX/rxjs,ReactiveX/RxJS,SangKa/RxJS-Docs-CN,Brocco/RxJS,Igorbek/rxjs5,figueredo/RxJS,elliotschi/rxjs,justinwoo/RxJS,kwonoj/RxJS,kwonoj/RxJS,elliotschi/rxjs,robwormald/RxJS,mattpodwysocki/RxJS,robwormald/RxJS,luisgabriel/RxJS,RxJS-CN/RxJS-Docs-CN,mattpodwysocki/RxJS,adrianomelo/RxJS-1,staltz/RxJSNext