Promise.value and Guarantee.value when T == Void

[RomanPodymov]

Hello.
Thank you for PromiseKit.
I see that Resolver has func fulfill_() for T == Void. I would propose to add similar functions for Promise and Guarantee.
Also, declared func Promise.value() as static because Promise is final.

[mxcl]

Thanks, this is a good addition.

Can we get a test that verifies that this is not ambiguous for any version of Swift we support?

ie:

func test() {
    // tests no amiguity
    let a = Promise<Void>.value
    let b = Promise<Void>.value(Void())
}

Thanks.

[RomanPodymov]

Thanks, this is a good addition.

Can we get a test that verifies that this is not ambiguous for any version of Swift we support?

ie:

func test() {
    // tests no amiguity
    let a = Promise<Void>.value
    let b = Promise<Void>.value(Void())
}

Thanks.

Hello @mxcl
Done.

[mxcl]

Marvelous thank you for your contribution!