pyright ignores from __future__ import annotations when it comes to method definitions

**Description**

This code works in Python 3.12, it even passed `mypy` validation, but fails with `pyright`:

```python
from __future__ import annotations

from typing import Annotated

from pydantic import BeforeValidator

type MyStr = Annotated[str, BeforeValidator(_my_before_validator)]

def _my_before_validator(value: str) -> str:
return value
```

The error message is:

```
error: "_my_before_validator" is not defined (reportUndefinedVariable)
```

**Workaround:**

```python
type MyStr = Annotated[str, BeforeValidator(lambda v: _my_before_validator(v))] # pylint: disable=unnecessary-lambda
```

No repository file or test is named in the report. Start by running the provided snippet through Pyright and compare its result with Python 3.12 and mypy, then trace analysis of future annotations, type aliases, and Annotated metadata. Done means the reproduction no longer reports _my_before_validator as undefined and a regression test covers it.

Written by the indexing model from the issue text.