[Glimmer 2] didDestroyElement needs to be called during component teardown

[mitchlloyd]

It seems there is a bug in current canary where didDestroyElement is not being called on teardown. Funny enough when I search for didDestroyElement in this repo I get no hits :)

@rwjblue Indicated that a similar issue may have been fixed earlier here and just need to be re-applied.

https://github.com/emberjs/ember.js/pull/14159/files

[rwjblue]

Thanks for reporting! Yeah, we need to port forward the tests added in #14159 (which would be a good failing test for this). Once we have the failing tests, we need to add a view.trigger('didDestroyElement') around here. I need to check with @krisselden to see if didDestroyElement is supposed to be fired before view.destroy() is called though.

[rwjblue]

Fixed by #14227.