Analyzer gives wrong error for sync* that returns

[Hixie]

Iterable<int> get foo sync* => ['a'].map<int>(int.parse);

void main() {
  print(foo);
}

Analyzer (incorrect):

  error • Functions marked 'async' must have a return type assignable to 'Future' • test.dart:1:1 • illegal_async_return_type
  error • Can't return a value from a generator function (using the 'async*' modifier) • test.dart:1:29 • return_in_generator

Compiler (correct):

test.dart:1:32: Error: 'sync*' and 'async*' can't return a value.
Iterable<int> get foo sync* => ['a'].map<int>(int.parse);
                               ^