this any typed in some JS object literals

[mjbvz]

From microsoft/vscode#43930

TypeScript Version: 2.8.0.insiders-20180211

Search Terms:

• this
• object literal

Code
For the js:

console.log({
    a: 1,
    b() {
        this
  }
});

Hover over this in b

Bug
this has any type

this is properly typed in cases like:

const z = {
    a: 1,
    b() {
        this
  }
}

Playground Link:

Related Issues:

• In JS, this in object literals is untyped #11072