This sets the `experimentReleaseVersion` of `primary-constructors` to `3.12.0`. This enables tests, outside the SDK in particular, to reliably pin tests that prepare for the feature to language version 3.12.
Change-Id: I85565b9434c052398be5a7839ce5731d71162416
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/482784
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Kallen Tu <kallentu@google.com>
Reviewed-by: Sarah Zakarias <zarah@google.com>
Johnni Winther
b5c437b03f