Andreas Kling b9eb8d00ca LibJS: Revoke any outstanding WeakPtr<Shape> when zombifying shapes ...

The forward transition cache in Shape uses WeakPtr<Shape> to learn when
a cached transition has been garbage collected.

When running in zombification mode, we have to explicitly revoke any
outstanding WeakPtrs to a Shape when it becomes a zombie. That ensures
that it gets pruned from transition caches.

2021-09-11 17:01:45 +02:00

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