gh-111420: Allow type comments in parenthesized with statements

[tomasr8]

I ran make regen-pegen and make regen-ast, I hope that's all that is needed :)

I also wanted to add some regression tests, but I I'm not sure where to put them. Should they go in test_ast.py or somewhere else? This is what I have in mind:

tree = ast.parse("with (a as b): # type: foo\n    pass", type_comments=True)
self.assertEqual("""\
Module(
    body=[
        With(
            items=[
                withitem(
                    context_expr=Name(id='a', ctx=Load()),
                    optional_vars=Name(id='b', ctx=Store()))],
            body=[
                Pass()],
            type_comment='foo')],
    type_ignores=[])""", ast.dump(tree, indent=4))
        
tree = ast.parse("with (a, b): # type: foo\n    pass", type_comments=True)
self.assertEqual("""\
Module(
    body=[
        With(
            items=[
                withitem(
                    context_expr=Name(id='a', ctx=Load())),
                withitem(
                    context_expr=Name(id='b', ctx=Load()))],
            body=[
                Pass()],
            type_comment='foo')],
    type_ignores=[])""", ast.dump(tree, indent=4))

• Issue: ast.parse(type_comments=True) fails on some parenthesized context managers #111420

[pablogsal]

This is missing a test in test_type_comments.py:

https://github.com/python/cpython/blob/main/Lib/test/test_type_comments.py

[tomasr8]

Thanks for letting me know! I'll add it

[pablogsal]

LGTM

[tomasr8]

LGTM

Damn you're fast 👀 😄