Testing some of the more specific cases of using domain.add and
domain.remove. For example, calling domain.add twice with same event
emmiter and actually removing an event emitter from the domain.
PR-URL: https://github.com/nodejs/node/pull/24163
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
