py3k: implement PyCode.dump() properly (issue 1827)

Merged Bitbucket Importer requested to merge bitbucket/merged-pr-257 into branch/py3.3

Created originally on Bitbucket by kiilerix (Mads Kiilerich)

Was already merged in Bitbucket before import, marked as merged by the import user

An update from https://bitbucket.org/pypy/pypy/pull-request/254/py3k-implement-pycodedump-properly-issue/diff

Merge request reports