c0e5cec5da
Isolate.exit() message validation diverged from SendPort.send one, so this CL aligns them back. Fixes https://github.com/dart-lang/sdk/issues/47373 TEST=sendandexit_test Change-Id: I4c85933acb87a29892df5eb3cd2843e3207418b9 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/215502 Commit-Queue: Alexander Aprelev <aam@google.com> Reviewed-by: Martin Kustermann <kustermann@google.com>