tests: Choosing order in which abilities go on the stack should also shown any related creatures

When multiple instances of the same triggered ability, but with different related permanents/stack objects go on the stack at the same time, there is currently no way to differentiate them in the testing framework.

E.g. player attacks with [[It that Betrays]]. If two non token creatures are sacrificed by the defender, it is currently not possible to reliably choose the order in which the two triggers go on the stack. The order can be very important for any ETB triggers.