Add sanity check assert int class hierarchy

Change-Id: Iddcf2b64f745bb9385fb5b1621afa68056da89a8
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/103127
Reviewed-by: Kevin Millikin <kmillikin@google.com>
Commit-Queue: Jens Johansen <jensj@google.com>

https://dart.googlesource.com/sdk/+/7f67e83e3619468e5a574516fd06662ec2f7a5bd
1 file changed
tree: b8263591b67e78030af3faf6704d72405eab6d8c
  1. commits.json