98e29db45c
We want to avoid users passing `--enable-experiment=native-assets` on stable and beta, as we'd like to move fast and break things on the experiment. This aligns the experiment with how the experiment is working in Flutter: main and dev branch only. Before this CL, dartdev did not check experiment flags. Unknown experiments would fail in the VM. After this CL, dartdev checks the experiment flags and errors out early. Change-Id: I875ea3272f4b67342da19ea2e4be329a4b380573 Cq-Include-Trybots: luci.dart.try:pkg-linux-debug-try,pkg-linux-release-arm64-try,pkg-linux-release-try,pkg-mac-release-arm64-try,pkg-mac-release-try,pkg-win-release-arm64-try,pkg-win-release-try Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/406660 Commit-Queue: Daco Harkes <dacoharkes@google.com> Reviewed-by: Martin Kustermann <kustermann@google.com>