Add an alias of Kernel#yield_self named #then.

[dimameshcharakou]

No description provided.

[graalvmbot]

Hello Dima Mescheryakov, thanks for contributing a PR to our project!

We use the Oracle Contributor Agreement to make the copyright of contributions clear. We don't have a record of you having signed this yet, based on your email address dima -(dot)- mescheryakov -(at)- gmail -(dot)- com. You can sign it at that link.

If you think you've already signed it, please comment below and we'll check.

[chrisseaton]

Thanks - are you happy to sign the OCA?

[dimameshcharakou]

Yes. I've sent the signed OCA.

[chrisseaton]

Ok great - sorry it'll take a few days to come through though. I'll have to let this PR sit here until it does. We appreciate the contribution.

[dimameshcharakou]

Thank you so much!

[dimameshcharakou]

The signed OCA has been processed.

[chrisseaton]

It's not on the list yet. Did you get an email telling you it was accepted?

[dimameshcharakou]

Yes, i got it and can see my name: Dzmitry Meshcharakou in the list. Maybe the issue is that sometime ago i’ve changed the name on github and graalvm bot looks for an old unformal one.. I’ve sent OCA using the email from graalvm bot comment.