Emit `used-before-assignment` instead of `undefined-variable` for unused type annotations

[jacobtylerwalls]

Bug description

I think we can raise a more appropriate message for cases like:

def type_annotation_used_improperly_after_comprehension():
    """https://github.com/PyCQA/pylint/issues/5654"""
    my_int: int
    _ = [print(sep=my_int, end=my_int) for my_int in range(10)]  <--should be used-before-assignment
    print(my_int)  # [undefined-variable]

Because the python interpreter produces:

UnboundLocalError: local variable 'my_int' referenced before assignment

This feature was added in #5158, so perhaps recent enough to change, but not sure if it's too much churn/worth it to bother.

Expected behavior

Raise used-before-assignment instead of unused-variable for the above test from undefined_variable_py38.py

Pylint version

pylint 2.13.0-dev0
astroid 2.9.3
Python 3.10.1 (v3.10.1:2cd268a3a9, Dec  6 2021, 14:28:59) [Clang 13.0.0 (clang-1300.0.29.3)]

[DanielNoord]

Could it be that the example is different than the error raised? What is my_none referring to?

[jacobtylerwalls]

Sorry, typo in the report. I fixed it to match.