[issue22968] Lib/types.py nit: isinstance != PyType_IsSubtype

[Greg Turner]

Greg Turner added the comment:

Fixed a trivial typo in test_virtual_metaclass_in_types_module.patch

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versions: +Python 3.5
Added file: http://bugs.python.org/file37356/test_virtual_metaclasses_in_types_module_v2.patch

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