typeToString doesn't respect TypeFormatFlags.MultilineObjectLiterals

@weswigham がすでに取り組んでいます。

2025年3月20日 から。

### 🔎 Search Terms

typeToString

### 🕗 Version & Regression Information

This is the behavior in every version I tried, and I reviewed the FAQ for entries about typeToString

### ⏯ Playground Link

_No response_

### 💻 Code

```ts
const result = typeChecker.typeToString(
type,
enclosingDeclaration,
ts.TypeFormatFlags.UseAliasDefinedOutsideCurrentScope
| ts.TypeFormatFlags.NoTruncation
| ts.TypeFormatFlags.MultilineObjectLiterals
)
```

### 🙁 Actual behavior

When type is the type of an object literal, the ts.TypeFormatFlags.MultilineObjectLiterals flag causes multiple spaces to be generated between the properties, but not newlines.

### 🙂 Expected behavior

When type is the type of an object literal, the ts.TypeFormatFlags.MultilineObjectLiterals flag should cause newlines to be generated between the properties.

### Additional information about the issue

I'm reporting this because on investigation I found the problem, but in order to generate a PR, I need an issue to refer to!