pkg/front_end/testcases/control_flow_collection.dart:13:33: Context: Write to i@364
      for (int i = 11; i <= 14; ++i) i,
                                ^^
pkg/front_end/testcases/control_flow_collection.dart:22:33: Context: Write to i@364
      for (int i = 11; i <= 14; ++i) i,
                                ^^
pkg/front_end/testcases/control_flow_collection.dart:31:33: Context: Write to i@364
      for (int i = 11; i <= 14; ++i) i: i,
                                ^^