Dart: breaking change 45451: deprecate and remove support for native extensions

[NewsBot]

A new Dart blog post/announcement has been posted!

We are planning to deprecate (in Dart 2.14) and remove (in Dart 2.15) support for native extensions. Users are expected to migrate to dart:ffi instead. This breaking change implies removal of support for the dart-ext import scheme as well as hiding the Dart VM C API in dart binaries. Users are

Get the full details here: https://groups.google.com/a/dartlang.org/d/msg/announce/QMDmz7cgBUs/uZTUUe5WDQAJ