gh-127187: Set correct __module__ attribute for methods of named tuple types

[XuehaiPan]

Set correct __module__ attribute for methods of named tuple types.

Fixes #127187

• Issue: Unexpected __module__ attribute for NamedTupleType.__new__ method: namedtuple_{typename} #127187

[XuehaiPan]

I wonder if we need to check module is a str object. In the test, the module argument can be passed with collections (an instance of ModuleType).

[XuehaiPan]

I think this PR is still valuable. It avoids potential bugs if there is a namedtuple_xxx module (e.g. namedtuple_tests.py in the local directory). Also, dataclasses.dataclass generates methods with appropriate __module__ set while typing.NamedTuple does not.