9f79dfc37d
New analyzer errors are reported for dart:html around nullability. Non-nullable fields are translated to native getters and setters if part of a concrete class and normal getters and setters if abstract. Change-Id: I2fd87803a08872b2a7eae4de0af704f184997c7e Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/137481 Reviewed-by: Stephen Adams <sra@google.com>