Add support for running test for Scala.js and Scala Native in Test Explorer

[kpodsiad]

Is your feature request related to a problem? Please describe.

Currently, Test Explorer uses debug request to both run and debug test classes. Because of this, it's not possible to run test classes defined in Scala.js and Scala Native projects.

Describe the solution you'd like

Metals shouldn't use debug request for running tests. Instead, Metals can implement their own runner which will be able to run tests no matter to which platform they belong.

Describe alternatives you've considered

One can always run tests from sbt shell or bloop cli but Test Explorer should be able to run tests for other platforms than JVM.

Additional contex

No response

Search terms

vscode, test explorer, Scala.js, Scala Native, UX