dart-lang/sdk@eb4ab61349 [VM/nnbd] Duplicate workaround to force nullability of Null type.
dart-lang/sdk@efb4511916 [VM/nnbd] Propagate nullability info on types from kernel to VM and bytecode.
dart-lang/sdk@f49713a1ee Improve display of non-migrated code
dart-lang/sdk@d867e1febf [pkg:vm_service] send responses with the id sorted first
dart-lang/sdk@67db877264 [dart2js] Replace const constructors with factories on singleton DartTypes.
dart-lang/sdk@e2891ad8e3 [dart2js] New RTI: Support reification of erased types.
dart-lang/sdk@0d6a59950d Account for possible AST rewrites during type resolution of forEach loops