Warn if argument shadows fixture

What's the problem this feature will solve?

Say I have the files:

$ cat test_t.py
import pytest

@pytest.mark.parametrize('closed', ['left', 'right', 'both', 'neither'])
def test_me(closed):
    assert closed in ['left', 'right', 'both', 'neither']

$ cat conftest.py
import pytest

@pytest.fixture(params=["left", "right", "both", "neither"])
def closed(request):
    return request.param

Describe the solution you'd like

Some warning that, in test_me, I have an argument whose name shadows that of a fixture

This came out of a PR in pandas https://github.com/pandas-dev/pandas/pull/49754#discussion_r1025656945

Alternative Solutions

I'm tempted to write my own tool to do this, just wanted to check it's not been done already. I tried searching "argument shadows fixture " and similar things in the issue tracker but didn't find anything.

Additional context

Reproduce the example using test_t.py and conftest.py, then trace how pytest resolves the test_me argument and the closed fixture. Define and test the warning behavior for an argument whose name matches a fixture, including the parametrized case shown in the issue.