- use readonly for static ids
- prefer undefined over null in my code
- remove some obsolete todos
- do not require Promise from action.run()

Add pattern matching 'in'

Fixes #122818

Fixes #122781

github/codespaces#2659

Fixes #115807

For #122736

With iframe based webviews on desktop, cancelling an unload by setting `returnValue` prevents the entire window from being unloaded.

This change attempts to block webviews from cancelling unloads by overwriting the `onbeforeunload` event and `beforeunload` events. This blocking is not supposed to be perfect, just to prevent the most common patterns

Fix #122645

Ensure non-selected tab actions apply to correct instance

Fixes #121282

This reverts commit f727e50c.

rename InlineHint to InlayHint, make it InlayHint only and keep OverlayHint as a future, separate feature, remove hover message

* fix #122699

* add tests