For #262772

This covers most of the top hitters I see using the script in #262772. This script identifies cases where an event function is created but on one actually listens to it. I found these by starting up the editor and doing some basic interaction

…ix #259514) (#261769)

…n to the user (microsoft/vscode-internalbacklog#5761) (#262439)

* implement as a bag

* nit

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Co-authored-by: TylerLeonhardt <2644648+TylerLeonhardt@users.noreply.github.com>

Update for-in loop snippet with `Object.hasOwn()`

…262845)

Convert most top hitting eager event creations to use getters

collapse thinking part by default

* update codeowners

* more