TS2322 error in tsgo but not tsc

@ahejlsberg がすでに取り組んでいます。

2025年8月19日 から。

## Steps to reproduce

With default compiler options:

```ts
enum E {
Foo,
Bar,
}
type A = { type: 'a'; e: E }
type B = { type: 'b' }
type C = A & { e: E.Bar }

function fn(v: A | B | C): A | B | C {
return { ...v, e: E.Foo }
}
```

## Behavior with `typescript@5.8`

Typechecks successfully.

## Behavior with `tsgo`

> index.ts:10:18 - error TS2322: Type 'E.Foo' is not assignable to type 'E.Bar'.