The dart:developer APIs `registerExtension()` and `postEvent()` no longer write directly to the console. Fixes: https://github.com/dart-lang/sdk/issues/48103 Change-Id: I41ee807eb376abbac87d0f353dde22bebd732faa Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/279233 Reviewed-by: Anna Gringauze <annagrin@google.com> Commit-Queue: Nicholas Shahan <nshahan@google.com>