I have a bad habit of forgetting to rename these when I yank similar lines and end up with errors, or when I refactor a type and forget to update the instance name to match. I’m pretty happy with this being automatic for these reasons.
You could build the compiler yourself from source, or alternatively wait for the next release, for which the prebuilt binaries will be built on Ubuntu 18.04. I think we might put one out sooner than the usual 6 week schedule because of this issue.