Infer from usages should not widen literal types

Bug Report

🔎 Search Terms

string literal to string, infer type from usages, code fix, quickfix

⏯ Playground Link

Playground link with relevant code

💻 Code

let a

a = "foo" as "foo" | "bar"

let b

b = getB()

checkB(b)

function checkB(toCheck: "foo" | "bar") {
}

function getB(): "foo" | "bar" {
    return "foo"
}

🙁 Actual behavior

After running infer from usages quickfix, you get string type in a and b positions

🙂 Expected behavior

Should get inffered type "foo"

I think in case of as and satisfies clauses the type should be just copied literally?

As you can see from example this is common case for string enums, like when some function expects some string enum instead of just string, but this information gets lost

Riproduci il comportamento nel TypeScript Playground collegato usando il codice fornito, quindi segui il quickfix “infer from usages” e la sua gestione delle assertions o delle satisfies clauses. Il lavoro è completo quando i tipi inferiti per a e b preservano il literal "foo" invece di ampliarlo a string, con la copertura del caso mostrato.