pkg/front_end/testcases/inference/assign_local.dart:14:29: Context: Write to x@320
  var /*@type=int*/ x1 = (x = 1);
                            ^
pkg/front_end/testcases/inference/assign_local.dart:15:32: Context: Write to x@320
  var /*@type=double*/ x2 = (x = 1.0);
                               ^
pkg/front_end/testcases/inference/assign_local.dart:18:32: Context: Write to y@406
  var /*@type=A<int>*/ y1 = (y = new /*@typeArgs=int*/ A());
                               ^
pkg/front_end/testcases/inference/assign_local.dart:19:32: Context: Write to y@406
  var /*@type=B<int>*/ y2 = (y = new /*@typeArgs=int*/ B());
                               ^