The code is going to undergo heavy heavy transformation by the time its running on differential dataflow. There's no hope of preserving ordering from the original code.

Thats why I'd like to see a way in my IDE to create different Views of the codebase instead just looking at raw files/text - to be able to capture and save/preserve the essence as much as possible - but still being able to have additional, new functionality. In one View I might be able to look at the whole like (old code + "something") while from another View I'd be able to show new/other connection.