Sijawusz Pur Rahnama

@Namek My bad, excuse my hastiness 🙇‍♂️ You can still remove it and rebase it manually if u like :)

> On the side of understanding the actual implementation of the `SourceMap` and `VLQ` I need to spend some more time. It would be helpful if there would be some...

@Namek Hi, could you please resolve the merge conflicts, so this could be possibly merged for the upcoming (`0.15.0`) release?

@teggotic Ameba warnings need to be fixed, see failed CI builds.

@teggotic Hi, are you willing to continue working on this?

With #443 it should be relatively easy, having `Ast::Node#location`.

@gdotdesign I think we need both, `Diagnostics` for LS, and a similar feature for the `lint` command - mostly useful within the CI env.

I'd need to have `transaction(&block)` method with rollback support in case an `Exception` is thrown during block execution. My use case is as follows: ```cr store = Store::Redis.new store.transaction do...

IIRC it has been implemented by [crystal-redis](https://github.com/stefanwille/crystal-redis) shard.

I'm aware of that, yet I couldn't find anything about `MULTI/EXEC` in [Resp](https://github.com/soveran/resp-crystal). It's great if that's already possible, I'd love to hear more! :)