Add inlay hints for getters

[mjbvz]

From microsoft/vscode#129519

Bug Report

🔎 Search Terms

• inlay hints
• TypeScript › Inlay Hints › Function Like Return Types: Enabled

🕗 Version & Regression Information

4.4.0-dev.20210727

Not a regression

💻 Code

class Foo {
    prop = 1
    foo() { return 1; }
    get bar() { return 1; }
}

Enable all inlay hints in VS Code, specifically: TypeScript › Inlay Hints › Function Like Return Types: Enabled

🙁 Actual behavior

Hints are shown on foo but not on bar:

🙂 Expected behavior

I think we should include hints for getters if TypeScript › Inlay Hints › Function Like Return Types: Enabled is enabled

[DanielRosenwasser]

Seems like we could also just plop on the : void for setters too.

[Tyriar]

@DanielRosenwasser that would be a little confusing since setters cannot have return types?

[DanielRosenwasser]

Thanks @a-tarasyuk!

Just saw @Tyriar's comment though. Perhaps we should remove the : void.

[DanielRosenwasser]

FWIW I've also filed #45224.