Changes fields to be either mutable or immutable by construction.
This ensure that we don't create setter references for fields that
cannot be assigned to and is a prerequisite for replacing @fields/
@fields= canonical names with @getters/@setters.
TEST=existing expectation tests and verification
Change-Id: I70b9a504ee6f221b7c334ac02620feb0d5f7ae01
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/176665
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Dmitry Stefantsov <dmitryas@google.com>
Unlike other final fields, late final fields without initializers have a
corresponding implicit setter. Previously, front-end was setting
Field.hasImplicitSetter to false for late final fields.
As a result, ClassHierarchy.getDispatchTarget was not returning such
field as a dispatch target for a setter invocation and TFA was inferring
incorrect types for late final fields (as if all setters for late
final fields disappeared).
Change-Id: I8f55f7ec8afa38e8cc3f54f85bd66c0381ae6318
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/137701
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Auto-Submit: Alexander Markov <alexmarkov@google.com>