Are you asking for this feature in C#, or asking for us to look at and try duplicating this C# feature? I don't recognise this feature, but a quick search got me to this page:
Yes - this is the feature. It is only available in VS Enterprise so having similar functionality for those of us with only VS Professional would be great!
Unfortunately this is not something we are currently considering doing. We are looking into the idea of having Extract Method look for duplicates of the extracted code, and offering to replace those as well with a function call, but this would be looking for exact matches, and based on code you are already extracting.