"Infer parameter type from usage" produces oddly formatted output

[lumaxis]

When using the "Infer parameter types from usage" quick fix in VS Code, TypeScript sometimes injects the JSDoc type annotation right in the middle of the code. The resulting code looks odd and broken.

TypeScript Version: 4.0.0-dev.20200607

Search Terms:
infer all from usage

Code
Using "Infer parameter type from usage" on this code:

function doSomething(things) {
  const states = things.filter(thing => true);
}

produces this output:

function doSomething(things) {
  const /**
     * @param {any} thing
     */
 states = things.filter(thing => true);
}

Expected behavior:

TypeScript produces annotated code that is not weirdly broken into different lines

Actual behavior:

TypeScript produces annotated code that looks odd and has the JSDoc comment injected in the middle of code

Playground Link: Not sure if this functionality is available in the Playground

Related Issues: N/A