[issue11798] Test cases not garbage collected after run

[Roundup Robot]

Roundup Robot added the comment:

New changeset b668c409c10a by Antoine Pitrou in branch 'default':
Fix breakage in TestSuite.countTestCases() introduced by issue #11798.
http://hg.python.org/cpython/rev/b668c409c10a

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