Show inherited comments in quick info

TypeScript Version: 1.8.10

Have an interface in one file

interface IFooController {
    /**
     * random comment
     * @returns {string} Returns a string
     */
    test(): string;
}

export default IFooController;

In another file have a class that implements that interface

import IFooController from "../Interfaces/Controllers/IFooController";

export default class FooController implements IFooController {
    test(){

    }
}

Expected behavior:

See the comments of the interface when hover over the class method

Actual behavior:

See nothing.

This doesn't happen with functions and class comments.
This only happens when interface is imported.

Using Microsoft Visual Studio Professional 2015
Version 14.0.25123.00 Update 2

Reproduce the example using Interfaces/Controllers/IFooController and FooController, then start by tracing the TypeScript quick-info behavior for a method implementing an imported interface. Done means hovering over FooController.test shows the interface comment and @returns text, matching the expected behavior.