We currently have change stream sharded tests in three different places. (1) All the tests in jstests/sharding/change_streams/ (2) Some of the tests in jstests/change_streams/ like jstests/change_streams/shard_collection_event.js (3) A few tests in jstests/sharding/ like jstests/sharding/change_streams_*.js. We should move all these tests into a single directory (ideally into a jstests/change_streams/sharding directory) so that we can run them in the passthrough suites more effectively.