[Python-checkins] Python Regression Test Failures refleak (6)

[Neal Norwitz]

test_opcodes leaked [0, -2, 2] references, sum=0
test_doctest leaked [-2, 2, 0] references, sum=0
test_doctest2 leaked [-2, -2, 0] references, sum=-4
test_difflib leaked [-2, -2, 0] references, sum=-4
test_dummy_threading leaked [0, 0, -2] references, sum=-2
test_gc leaked [-2, 2, -4] references, sum=-4
test_generators leaked [0, -2, 2] references, sum=0
test_importhooks leaked [-2, 2, -6] references, sum=-6
test_platform leaked [0, 0, -2] references, sum=-2
test_threadsignals leaked [0, 0, -8] references, sum=-8
test_urllib2_localnet leaked [-107, 123, -117] references, sum=-101
test_weakref leaked [-2, 2, 0] references, sum=0