`typing.TypeAliasType` cannot be used to declare self-referential types

[bzoracler]

Bug Report, To Reproduce, & Actual Behaviour

See mypy Playground:

type T = dict[str, "T"]  # OK

from typing import TypeAliasType

T2 = TypeAliasType("T2", dict[str, "T2"])  # E: Cannot resolve name "T2" (possible cyclic definition)  [misc]

Expected Behavior

Self-referential type successfully declared

Your Environment

• Mypy version used: 1.13.0
• Mypy command-line flags: (none)
• Mypy configuration options from mypy.ini (and other config files): (none)
• Python version used: 3.12