Go-to-Implementation & class names

I have started to implement "Go-to-Implementation" by consumming tsserver "implementation" command inside Eclipse to do the same thing than Java:

See https://github.com/Microsoft/TypeScript/issues/8268

The tsserver "implementation" command returns list of FileSpan (file, location)) but not the text of the implemented class ("MyServiceA", "MyServiceB"). If you see the below screenshost, it should be really cool to have too the name of the classes which implement the interface.

Many thanks