throwError only works with Any

[t-unit]

When using:

expect(subject).[last|first|array].to(throwError())

the tests only compile if the element used is Any. Otherwise you get a compilation error.

So

let subject = ReplaySubject<**Any**>.createUnbounded()
subject.onError(AnyError.any)

expect(subject).first.to(throwError())

works.

While

let subject = ReplaySubject<**String**>.createUnbounded()
subject.onError(AnyError.any)

expect(subject).first.to(throwError())

proceses: Instance method 'to(_:description:)' requires the types 'String' and 'Any' be equivalent

This issue seems closely related to #38

[CassiusPacheco]

Hi there, I found out that Nimble has already merged in a generic ThrowError solution for this problem, however it's not out yet in the latest versions. However, if you fetch Nimble's code from master it works.

Have a look at this issue Quick/Nimble#737