Test debugging for numba-dppy and numba side-by-side

[PokhodenkoSA]

• Check that numba has the same behavior with local variables as Numba-DPPy.
  • We need to reproduce the same issues with Vanilla Numba.

In tests we should have scripts, which compiles with Vanilla Numba and with Numba-DPPy.
E.g. an @njit kernel offloaded to CPU.
Same issues e.g. with variable values shows with both Vanilla Numba and Numba-DPPy.
It would be a good starting point, a script to follow when and how the issue will get fixed.