Why does it have to be lumped into IDE? Both could be written as standalone utilities that your favorite editor can call.

I think IDEs hurt innovation in development tools more than almost anything else. They are like crack for your workflow - easy to get started with, but once you're on them you're stuck. Plugging in better tools into existing IDE is a big PIA if possible at all, and rewriting the whole IDE is a huge undertaking for any company who wants to make your life better.