Sergio Martins
ea8485e967
It's not supported, as it would prevent the value from being
garbage collected, defeating the purpose of Finalizer.
Not sure if an exception is worth it, so added the assert
as suggested in the bug tracker.
TEST=vm/dart{,_2}/finalizer/finalizer_attach_checks_token_test
Bug: #52731
Change-Id: Id7b457ca1a95e71c1a43d2d2c8569c35659952b2
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/311020
Reviewed-by: Slava Egorov <vegorov@google.com>
Commit-Queue: Slava Egorov <vegorov@google.com>