ruff

90b297c6 - [ty] Allow empty names in functional `Enum(...)` semantics (#24570)

[ty] Allow empty names in functional `Enum(...)` semantics (#24570) ## Summary We now accept empty names, like `Enum("E", ""), Enum("E", []), Enum("E", {})`. These are valid at runtime; we return `tuple[()]` for its members. I've also added some more tests to make a few behaviors explicit (without changing them): we reject literals with star unpacking (for simplicity), but accept non-literal arguments, and non-literal keys and values within literal arguments.