Test: Notebook Multi-Cell Commenting

[Yoyokrazy]

Refs: #142437

• anyOS @deepak1556
• anyOS @kieferrm

Complexity: 3

author: @Yoyokrazy

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Summary

Notebooks now support multi cell commenting. This is accomplished via cell multi-select and triggering a LineCommentCommand for the entire cell's range. Currently this uses the Toggle behavior for the comment, using the pre-existing heuristics that all standard code editors use.

Steps to Test:

• Open a notebook containing cells of various languages and editing states
• Use cell multiselect via ctrl+click or shift+click to select various cell ranges (including only a single cell)
• Use ctrl+/ to trigger a comment for these selected cells

Things to look for:

• cells are toggling their comments as expected (it should mirror what happens to the same code if it was in it's own standard code editor. ie a python cell vs the same code in a .py file, etc)
• no keybindings are broken (make sure normal multiline commenting works as expected within cells
• nothing happens to cells not in an editing state

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Thanks for testing!