[pypy-dev] tests porting status

[Samuele Pedroni]

All tests apart appspace tests and some tests in tool/test are ported to 
py.test.

The tool/test are easy to address.

Given that appspace tests are currently run through CPython I wonder 
whether it would make sense to merge the branch, porting the few tests 
that were added to the head after the branch creation and think how to 
address exactly the appspace tests issue after that directly on the head.

This would allow whatever work is going to happen on the head between 
now and the sprint to use py.test tests.

Samuele.