Adding a linking script support, see go/resource-shaking. The goal is to run a `link.dart` script after kernel compilation complimentary to `build.dart` running before.
Change-Id: Iadc8648ae5fa2e823b6541c5bc08617bb860a017
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/+/338380
Reviewed-by: Daco Harkes <dacoharkes@google.com>
Commit-Queue: Moritz Sümmermann <mosum@google.com>
Moritz
ec4e420698