[issue11798] Test cases not garbage collected after run

[Antoine Pitrou]

Antoine Pitrou added the comment:

For the record, this change broke the --forever option in Tulip's test script, which is why I'm caring. Setting the _cleanup flag to False seems to restore old behaviour, except that _cleanup is (obviously) a private API.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue11798>
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