pkg/front_end/testcases/enhanced_enums/optional_parameters.dart.textual_outline_modelled.expect

enum E1 {
  x(b: 1),
  y(a: 0, b: 1),
  z(b: 1, c: 2);

  final int? a;
  final int b;
  final int c;
  const E1({this.a, required this.b, this.c = 42});
}

enum E2 {
  x(0),
  y(0, 1),
  z(0, 1, 2);

  final int a;
  final int? b;
  final int c;
  const E2(this.a, [this.b, this.c = 42]);
}

enum E3 {
  x(b: 1),
  y(a: 0, b: 1),
  z(b: 1, c: 2);

  const E3({int? a, required int b, int c = 42});
}

enum E4 {
  x(0),
  y(0, 1),
  z(0, 1, 2);

  const E4(int a, [int? b, int c = 42]);
}