77398 enable prefer_function_declarations_over_variables lint (a: accessibility, a: tests, cla: yes, f: cupertino, f: material design, framework, team, tool, waiting for tree to go green)

77410 Fix missing root Scaffold check in ScaffoldMessenger  (cla: yes, f: material design, f: routes, framework, severe: crash, waiting for tree to go green)

77419 fix Autovalidate enum references in fix data (cla: yes, cp: 2.0, cp: 2.0 completed, f: cupertino, f: material design, framework, waiting for tree to go green)

77427 Declare NavigationRailDestination.label as non-nullable (cla: yes, f: material design, framework, waiting for tree to go green)