pkg/front_end/testcases/extensions/explicit_this.dart.textual_outline.expect

// @dart = 2.9
class A1 {
  Object field;
  void method1() {}
}

extension A2 on A1 {
  void method2() => this.method1();
  Object method3() => this.field;
  void method4(Object o) {}
}

main() {}