This reverts commit 2376ab5186.
Reason for revert: Importing dart:ffi from dart:core breaks the VM when using --enable-ffi=false
Original change's description:
> [vm/ffi] Disallow `Pointer`s and structs in finalizers and expandos
>
> `Dart_NewWeakPersistentHandle` and `Dart_NewFinalizableHandle` in
> `dart_api.h` do no longer accept `Pointer`s and subtypes of `Struct`s
> as values passed in to the `object` parameter.
>
> Expandos no longer accept `Pointer`s and subtypes of `Struct`s
> as values passed in to the `object` parameter.
>
> Cleans up unused object_store->ffi_struct_class.
>
> Closes: https://github.com/dart-lang/sdk/issues/45071
> Breaking change: https://github.com/dart-lang/sdk/issues/45072
>
> TEST=vm/cc/DartAPI_FinalizableHandleErrors
> TEST=vm/cc/DartAPI_WeakPersistentHandleErrors
> TEST=tests/ffi(_2)/expando_test.dart
>
> Change-Id: I1f11adfa073c7d2c979f3c2bb15c7444c7c767a0
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/186280
> Commit-Queue: Daco Harkes <dacoharkes@google.com>
> Reviewed-by: Martin Kustermann <kustermann@google.com>
TBR=lrn@google.com,vegorov@google.com,kustermann@google.com,dacoharkes@google.com
Change-Id: Ib76d27e59391dc6107d3f8e8fba3d67640ea9a5c
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/195060
Reviewed-by: Daco Harkes <dacoharkes@google.com>
Commit-Queue: Daco Harkes <dacoharkes@google.com>
ac2412ca01