Cannot instantiate type "Type[None]"

Bug Report

Mypy claims Cannot instantiate type "Type[None]" when you try to do so. However, you actually can do this in python, and perhaps have been able to do this ever since python 3...

This affects both types.NoneType and type(None). Also, function signatures that get at those.

To Reproduce

https://mypy-play.net/?mypy=master&python=3.12&gist=26b0ab20fc6d45de0edff4f8a374b0a7

from types import NoneType
type(None)()
NoneType()
def f(n: type[None]):
    n()
def g(n: type[NoneType]):
    n()
f(NoneType)
g(NoneType)

Actual Behavior
main.py:2: error: Cannot instantiate type "type[None]" [misc]
main.py:3: error: Cannot instantiate type "type[None]" [misc]
main.py:5: error: Cannot instantiate type "type[None]" [misc]
main.py:6: error: NoneType should not be used as a type, please use None instead [valid-type]
main.py:7: error: Cannot instantiate type "type[None]" [misc]
Found 5 errors in 1 file (checked 1 source file)

Expected Behavior
Running this python file doesn't result in any runtime problems, so I would expect no errors. (Except perhaps main.py:6: error: NoneType should not be used as a type, please use None instead [valid-type], which seems like more of a style suggstion, and so might still be valid.)

Possibly related, perhaps even fixable by this issue: https://github.com/python/mypy/issues/19308

Comienza ejecutando la reproducción enlazada de mypy-play desde main.py y rastrea dónde se producen los cinco diagnósticos. La tarea estará terminada cuando los casos válidos de instanciación de NoneType y type(None) ya no produzcan errores incorrectos, mientras que el diagnóstico aceptable de uso de tipo de NoneType puede permanecer.