For 2.10.1 we want to move out of the compiler the instrumentation logic for the Scala IDE worksheet. That will allow for more flexible release cycles on
the scala-worksheet project and reduce the compiler's codebase.
In theory, this should be relatively easy to achieve, and it requires only one modification on the presentation compiler side (weakening visibility of a member).
We have a related ticket our side that can be used to track progress: https://github.com/scala-ide/scala-worksheet/issues/91
We should make sure that this ticket is fixed before 2.10.1 goes into code freeze. If you could label this ticket as Critical for 2.10.1, I'd be thankful.