d40c8a0573
This serves two purposes: 1) It can aid in debugging to better know which object you have. 2) It paves the way for a future re-design of toString so toString never leaks. Change-Id: Ice32209b19b961b7e92de829d8bee0ddd8bd6e93 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/122140 Commit-Queue: Jens Johansen <jensj@google.com> Reviewed-by: Johnni Winther <johnniwinther@google.com>