pkg/front_end/testcases/general/implicit_new.dart:31:5: Context: Write to x@522
  x = prefix.Foo();
    ^
pkg/front_end/testcases/general/implicit_new.dart:33:5: Context: Write to z@559
  z = prefix.Bar.named();
    ^
pkg/front_end/testcases/general/implicit_new.dart:39:5: Context: Write to l@682
  l = [prefix.Foo(), prefix.Bar.named()];
    ^
pkg/front_end/testcases/general/implicit_new.dart:41:5: Context: Write to m@756
  m = {"foo": prefix.Foo(), "bar": prefix.Bar.named()};
    ^