`reportUnreachable` and `reportUnnecessaryComparison` false positive when comparing `TypeForm` to `None`

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Description

Code sample in basedpyright playground

from typing_extensions import TypeForm


def foo(value: TypeForm[object]):
    if value is None: # error: reportUnnecessaryComparison
        print('hi') # error: reportUnreachable, reached at runtime

foo(None)

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same with NoneType except only reportUnreachable is reported but not reportUnnecessaryComparison