Starting with the roll in #99222, analysis of samples is giving unexpected analyzer messages. That Engine roll contains only the Dart roll flutter/engine#31702, which contains only the commit https://dart.googlesource.com/sdk.git/+/2f9d45b8bf9e5843acb94996e193e1a6fdf2da8b that modifies the text of the messages.

Here is one of the failing runs https://ci.chromium.org/ui/p/flutter/builders/try/Linux%20framework_tests_misc/13676/overview