When the debugger is running, have it provide input/feedback into IntelliSense

[greazer]

Highly related to microsoft/vscode-jupyter#1561, our new ability to debug into cells, makes this issue even more obvious than it was before.

Repro:

1. src/test/datascience/manualTestFiles/manualTestFile.py
2. Execute to the cell beginning with:
   myNparray = np.array([['Bob', 1, 2, 3], ['Alice', 4, 5, 6], ['Gina', 7, 8, 9]])
   myDataFrame = pd.DataFrame(myNparray, columns=['name', 'b', 'c', 'd'])
3. Debug into the cell to instantiate myDataFrame.
4. Enter a newline in the cell and type "myDataFrame."

Expected Result:

• Column names "name", "b", "c" and "d" are listed in auto-complete.

Actual Result:

• They are not.

However they DO appear in the Debug Console input box.

Also note that techincally this is not a data science specific problem. The same thing can happen when doing regular debugging.

We've had several customers notice the related issue microsoft/vscode-jupyter#1561 which deals specifically with the interactive window. As more jupyter like features are added to our experience this will become more of a problem, therefore, I'd really like to see this addressed. :)

[greazer]

This is not specific to data science. This is about enabling column autocomplete when doing regular debugging.

[greazer]

This is not specific to data science. This is about enabling column autocomplete when doing regular debugging.

[luabud]

@savannahostrowski JFYI