[New Check]: separate result like `PythonCompatUpdate` for experimental targets

[mgorny]

Is there an existing such new check request for this?

• [X] I have searched the existing issues

Explain

Currently, pkgcheck emits PythonCompatUpdate results for python3_13t and doesn't emit any similar results for pypy3. I think it would be better to have PythonCompatUpdate emitted only for non-experimental targets (i.e. regular CPython) and a separate result for experimental targets like python*t and pypy3.

Examples

No response

Output message

experimental PYTHON_COMPAT target available

Documentation

Additional experimental targets can be added to PYTHON_COMPAT. However, please check our notes for experimental targets: file:///home/mgorny/git/python-guide/_build/html/porting.html#experimental-python-implementations

Result level

info