Re: CALCITE-2458 Use of Kotlin for unit tests
>I would like to note that this change have also altered that now all tests
in the core module are now compiled by the kotlin compiler.
What do you mean by that?
>Right now it is not possible to compile the core module's tests without
Why do you want that?
Even if Kotlin tests are moved to a separate module, it would be impossible
to compile that module "without kotlin support".