Partial object return has inconsistent intellisense

[Validark]

TypeScript Version: 3.8.2

Search Terms:

Code

declare function partial<A extends object>(a: A): Partial<A>;
declare function object(): { x: number };

// try adding `.` before each semicolon
partial({ x: 2 });
partial(object());

Expected behavior: Both should display x?

Actual behavior: Only one has x?, the other has x.

Note: They both have the question mark on the right hand side.
Also Note: It never shows x? on the playground:

Playground Link: https://www.typescriptlang.org/play/?ts=3.9.0-dev.20200227#code/CYUwxgNghgTiAEAzArgOzAFwJYHtXxwCMArACgEoAueAb3gA9rVkBbQkGeAXwG4AoUJFgIU6bHngAHWNigQAPAEF4IehhCpgAZwIlwGAHyko1RVXgAFGVjlKD-PtJiyIpOo3gAmbuUfW5pERk5ORAA

Related Issues: Couldn't find any

[Git-Lior]

This is a bug in a feature of vscode, not typescript (that's why it didn't reproduce in the playground).

I opened a pull-request at microsoft/vscode#94165 that fixes this problem