Framework objects look to be included in undestroyed objects when calling assertDestroyablesDestroyed

[nlfurniss]

Overview

ember-lifeline recently switched to using assertDestroyablesDestroyed from ember-destroyable-polyfill in one of its test helpers. Depending on the version of Ember being used, a very simple test of a very simple component will fail with leftover undestroyed objects. This is the repro repo.

Ember versions that work/don't work

The test in the repro app fails depending on the Ember version being used

3.18.1 ✅
3.20.0 ✅
3.20.1 ✅
3.20.2 🔴 <<<< Update Glimmer rendering engine to 0.54.2. Fixes an issue with (private for now) destroyables work to enable the destroyables polyfill to work more appropriately.
3.20.6 🔴
3.24.4 🔴
3.27.x 🔴

This is the initial ember-lifeline issue

cc: @snewcomer @rwjblue @scalvert