We now show the module name (e.g. "tests or test_hooks") in the
test output. This change also eliminates the intermediate use
of slashes in the test_name var, which was passed to
bounce_key_prefix_for_testing().
(imported from commit 58e73301037a0b07d7e437514c247f7cb559420e)
The file test_runner.py has our subclass of DjangoTestSuiteRunner
and various methods that help it work.
(imported from commit 8eca39a7ed3f8312c986224a810d4951559e7a8b)