Tests: More work to make CPython36 suite executable with Python3.5 too.
Tests: More work to make CPython36 suite executable with Python3.5 too.

* This is for error handling code coverage.

* Coverage taking doesn't like syntax errors, and it's better to avoid
  getting them anyway.

kayhayen/Nuitka,kayhayen/Nuitka,kayhayen/Nuitka,kayhayen/Nuitka