`type[Literal['']]` does not accept `str` as the type

I am not even sure that `type[Literal]` is correct :)

```python
from typing import Literal

def a(x: type[Literal['a']]):
    reveal_type(x)
    
a(str)  # Argument 1 to "a" has incompatible type "type[str]"; expected "type[Literal['a']]"  [arg-type]
```

https://mypy-play.net/?mypy=latest&python=3.12&gist=6b8a1d7e6f98c64e7f751c58d356bf16