Dart code coverage

[ricardoboss]

Describe the use-cases of your feature

I am using Android Studio to develop Dart libraries and would like to show coverage information in my IDE when running tests.

Describe your solution

There already exists a coverage run configuration for Flutter tests (and as I have read in #212, they took your code and you had to remove it) and I would like the same, just for Dart.

As you can see here, I cannot select "Run with Coverage":

This is when using Flutter, which is a workaround for now:

Additional Information

While at it, I'd also like to keep the 'Rerun automatically' feature that already exists for the Dart Test run config: