The list of tests in src/test/isolation/isolation_schedule has grown
over the years. Originally, they were all related to Serializable
Snapshot Isolation, but there are different kinds of concurrency tests
there now. More tests is good, but the schedule file has grown into a
big inscrutable list with zero comments.
I propose to categorize the tests and add some divider comments to the
file, see attached.
- Heikki
