407ca1be87
Allows an embedder (or native extension) to inform the VM when external memory is released before a weak handle is finalized. Bug: https://github.com/dart-lang/sdk/issues/42078 Change-Id: Ifffd0c160e5305bc6e6752207a2315139f245e2f Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/149245 Commit-Queue: Ryan Macnak <rmacnak@google.com> Reviewed-by: Vyacheslav Egorov <vegorov@google.com> Reviewed-by: Martin Kustermann <kustermann@google.com>