Run python test suite after decompiling it

[rocky]

Description

We should have a way to run the Python tests that python uses to check itself after we decompile that bytecode.

Background

I have a hacky program that works for Python 2.7 only in uncompyle6. Python 3 testing works differently.

With this we can also hook this into Ci testing.

Tests

Note that there is a way to exclude fragile tests. For example those like debugger tests that expect a particular line of the test to have particular text. Or tests that take too long to run.