Support customizing Just My Code settings for interactive window

[Coderx7]

Feature: Notebook Editor, Interactive Window, Python Editor cells

Description

It would be great, not to encounter the interactiveshell.py when debugging.
I uncheck Debug just my code so that I can step into the libraries I use. However, interactiveshell.py is a nuisance here which I really dont need to see or work with.
If interactiveshell.py is of any importance, we can add a separate checkmark for it in the settings that lets the user explicitly enable it (i.e. when debugging, the first code that he/she sees is interactiveshell.py!).
In my humble opinion, 99.99% of the times, no one intends on checking on interactiveshell.py when they start debugging their code.
It would be great to have this out of the way.
Thank you all very much in advance

Microsoft Data Science for VS Code Engineering Team: @rchiodo, @IanMatthewHuff, @DavidKutu, @DonJayamanne, @greazer

[IanMatthewHuff]

@Coderx7 . Thanks for the report. I don't think that we would special case one item. Instead we should be respecting the general ptvsd debugging rules:
microsoft/ptvsd#997
We'll take a look to see if we are respecting these in cell debugging, not sure if we currently are or not.

[DonJayamanne]

Possibly resolved by #2087 (allowing a more fine grained solution)
At this stage interactiveshell.py is not considered part of just my code i.e. not user code, hence debugger will step in there.
Closing this as this is by design. @IanMatthewHuff /cc

Missed this not sure if we currently are or not.

[greazer]

We are dependent on #2087 being addressed before being able to do this.

[greazer]

New link to dependent issue is: https://github.com/microsoft/ptvsd/issues/2073

[joyceerhl]

This should be fixed with microsoft/debugpy#664