Bring back typedef property expansion

[zavr-1]

In the newer version, I can only see the type of an argument which is an object, compared to how it was expanded in the previous versions.

It was actually very useful to see all properties on hover which served as a documentation.

I think if you hide the details of the type, you should also provide means to expand its properties via a UI, or provide a setting for it.

[mjbvz]

This issue was moved to microsoft/TypeScript#25784