2891ec679b
Before this fix, trying to run a dill with version 28 (with named types in it) on a new VM would crash. Change-Id: I47851c236332aa14511f595b4b129e6354b395a7 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/113689 Commit-Queue: Jens Johansen <jensj@google.com> Commit-Queue: Johnni Winther <johnniwinther@google.com> Auto-Submit: Jens Johansen <jensj@google.com> Reviewed-by: Johnni Winther <johnniwinther@google.com>