Include test suite name in TSAN log filename

[colesbury]

Feature or enhancement

If you run a lot of tests that log TSAN reports to a file, you are likely to get a bunch of different log files that look pretty similar. For example, something like:

tsan_log.3313980
tsan_log.3315274
...

It can be difficult to figure out which test caused the data race, especially when the reported stack trace looks generic. For example, if the race happens in _PyEval_EvalFrameDefault or some other function not tied to a specific module, it's hard to know what caused the race.

I'm proposing that we update test/libregrtest/worker.py to include the name of the test suite in the TSAN log filename. For example, the log files would instead look like:

tsan_log.test.test_asyncio.test_sendfile.3315095
tsan_log.test__interpchannels.3313611

This makes it easier to find the test that triggered the race.

Linked PRs

• gh-129980: Include test name in TSAN filename in multiprocess test runner #129981