pkg/front_end/testcases/expressions.dart:34:5: Context: Write to i@286
  i = 87;
    ^
pkg/front_end/testcases/expressions.dart:38:9: Context: Write to i@286
  print(--i);
        ^^
pkg/front_end/testcases/expressions.dart:39:9: Context: Write to i@286
  print(++i);
        ^^
pkg/front_end/testcases/expressions.dart:40:10: Context: Write to i@286
  print(i--);
         ^^
pkg/front_end/testcases/expressions.dart:41:10: Context: Write to i@286
  print(i++);
         ^^