- Check against sending arbitrary classes via types.
- Stop allowing any object from dart:core, dart:collection, dart:typed_data (effectively reverts 807eacae30).
`SendPort.send` does not require such objects are sendable, and there is no guarantee the receiving isolate can represent them.
TEST=ci
Bug: https://github.com/dart-lang/sdk/issues/50243
Change-Id: I7e9b0e9d83080d44a98b257cd8f2a58da5443a87
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/264725
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Alexander Aprelev <aam@google.com>
a8fe399c79