40 columns                              |
>>> Line comment in combinator list.
import 'foo.dart' hide First, //
Second;
<<<
import 'foo.dart'
    hide
        First, //
        Second;
>>> Don't split `==` because of leading comment before left operand.
import 'uri.dart' if (
  // comment
config == 'value') 'c';
<<<
import 'uri.dart'
    if (// comment
    config == 'value') 'c';