library;
//
// Problems in library:
//
// pkg/front_end/testcases/general_nnbd_opt_out/override_check_accessor_with_covariant_modifier.dart:24:17: Error: The parameter 'value' of the method 'D.x4' has type 'B', which does not match the corresponding type, 'A', in the overridden method, 'C.x4'.
//  - 'B' is from 'pkg/front_end/testcases/general_nnbd_opt_out/override_check_accessor_with_covariant_modifier.dart'.
//  - 'A' is from 'pkg/front_end/testcases/general_nnbd_opt_out/override_check_accessor_with_covariant_modifier.dart'.
// Change to a supertype of 'A', or, for a covariant parameter, a subtype.
//   void set x4(B value) {} // Not covariant
//                 ^
// pkg/front_end/testcases/general_nnbd_opt_out/override_check_accessor_with_covariant_modifier.dart:15:12: Context: This is the overridden method ('x4').
//   void set x4(A value) {}
//            ^
//
// pkg/front_end/testcases/general_nnbd_opt_out/override_check_accessor_with_covariant_modifier.dart:25:32: Error: The parameter 'value' of the method 'D.x5' has type 'String', which does not match the corresponding type, 'A', in the overridden method, 'C.x5'.
//  - 'A' is from 'pkg/front_end/testcases/general_nnbd_opt_out/override_check_accessor_with_covariant_modifier.dart'.
// Change to a supertype of 'A', or, for a covariant parameter, a subtype.
//   void set x5(covariant String value) {}
//                                ^
// pkg/front_end/testcases/general_nnbd_opt_out/override_check_accessor_with_covariant_modifier.dart:16:12: Context: This is the overridden method ('x5').
//   void set x5(covariant A value) {}
//            ^
//
import self as self;
import "dart:core" as core;

class A extends core::Object {
  synthetic constructor •() → self::A*
    : super core::Object::•()
    ;
  abstract member-signature get _identityHashCode() → core::int*;
  abstract member-signature method _instanceOf(dynamic instantiatorTypeArguments, dynamic functionTypeArguments, dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOf(dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOfTrue(dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOfFalse(dynamic type) → core::bool*;
  abstract member-signature operator ==(dynamic other) → core::bool*;
  abstract member-signature get hashCode() → core::int*;
  abstract member-signature method toString() → core::String*;
  abstract member-signature method noSuchMethod(core::Invocation* invocation) → dynamic;
  abstract member-signature get runtimeType() → core::Type*;
}
class B extends self::A {
  synthetic constructor •() → self::B*
    : super self::A::•()
    ;
}
class C extends core::Object {
  synthetic constructor •() → self::C*
    : super core::Object::•()
    ;
  set x1(covariant self::A* value) → void {}
  set x2(self::A* value) → void {}
  set x3(covariant self::A* value) → void {}
  set x4(self::A* value) → void {}
  set x5(covariant self::A* value) → void {}
  set x6(covariant self::B* value) → void {}
  abstract member-signature get _identityHashCode() → core::int*;
  abstract member-signature method _instanceOf(dynamic instantiatorTypeArguments, dynamic functionTypeArguments, dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOf(dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOfTrue(dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOfFalse(dynamic type) → core::bool*;
  abstract member-signature operator ==(dynamic other) → core::bool*;
  abstract member-signature get hashCode() → core::int*;
  abstract member-signature method toString() → core::String*;
  abstract member-signature method noSuchMethod(core::Invocation* invocation) → dynamic;
  abstract member-signature get runtimeType() → core::Type*;
}
class D extends self::C {
  synthetic constructor •() → self::D*
    : super self::C::•()
    ;
  set x1(covariant self::B* value) → void {}
  set x2(covariant self::B* value) → void {}
  set x3(covariant self::B* value) → void {}
  set x4(self::B* value) → void {}
  set x5(covariant core::String* value) → void {}
  set x6(covariant self::A* value) → void {}
}
static method main() → dynamic {}