Created originally on Bitbucket by ltratt (Laurence Tratt)
Was already merged in Bitbucket before import, marked as merged by the import user
Source changeset not longer availableat the time of import. Commit listwill look empty
Without this, RPython's type system spots something's wrong and throws an error; even if it didn't, the resulting C code would probably have been wrong.
fijal +1'd this on IRC http://www.tismer.com/pypy/irc-logs/pypy/pypy.2012-06-25.log.html