Encounting pointer keys other than local ones in tests

[khatchad]

Is this bad when it happens? What other pointer keys do we encounter during the tests? Should we be handling them?

ML/com.ibm.wala.cast.python.ml.test/source/com/ibm/wala/cast/python/ml/test/TestTensorflow2Model.java

Line 3473 in 53d2f0a

} else LOGGER.warning(() -> "Encountered: " + pointerKey.getClass());