class Class = Super with Mixin implements Interface;

class Interface {
  void extendedConcreteMixedInAbstractImplementedMethod(covariant num i) {}
  void extendedConcreteMixedInConcreteImplementedMethod(covariant num i) {}
}

class Sub extends Class {
  void test() {}
}

class Super {
  void extendedConcreteMixedInAbstractImplementedMethod(int i) {}
  void extendedConcreteMixedInAbstractMethod() {}
  void extendedConcreteMixedInConcreteImplementedMethod(int i) {}
  void extendedConcreteMixedInConcreteMethod() {}
}

main() {}
mixin Mixin {
  void extendedConcreteMixedInAbstractImplementedMethod(int i);
  void extendedConcreteMixedInAbstractMethod();
  void extendedConcreteMixedInConcreteImplementedMethod(int i) {}
  void extendedConcreteMixedInConcreteMethod() {}
}