library test;
import self as self;
import "dart:core" as core;

class A<S extends core::Object = dynamic, T extends core::Object = dynamic> extends core::Object {
  generic-covariant-impl field self::A::S x;
  generic-covariant-impl field self::A::T y;
  constructor •(self::A::S x, self::A::T y) → void
    : self::A::x = x, self::A::y = y, super core::Object::•()
    ;
  constructor named(self::A::S x, self::A::T y) → void
    : self::A::x = x, self::A::y = y, super core::Object::•()
    ;
}
class B<S extends core::Object = dynamic, T extends core::Object = dynamic> extends self::A<self::B::T, self::B::S> {
  constructor •(self::B::S y, self::B::T x) → void
    : super self::A::•(x, y)
    ;
  constructor named(self::B::S y, self::B::T x) → void
    : super self::A::named(x, y)
    ;
}
class C<S extends core::Object = dynamic> extends self::B<self::C::S, self::C::S> {
  constructor •(self::C::S a) → void
    : super self::B::•(a, a)
    ;
  constructor named(self::C::S a) → void
    : super self::B::named(a, a)
    ;
}
class D<S extends core::Object = dynamic, T extends core::Object = dynamic> extends self::B<self::D::T, core::int> {
  constructor •(self::D::T a) → void
    : super self::B::•(a, 3)
    ;
  constructor named(self::D::T a) → void
    : super self::B::named(a, 3)
    ;
}
class E<S extends core::Object = dynamic, T extends core::Object = dynamic> extends self::A<self::C<self::E::S>, self::E::T> {
  constructor •(self::E::T a) → void
    : super self::A::•(null, a)
    ;
}
class F<S extends core::Object = dynamic, T extends core::Object = dynamic> extends self::A<self::F::S, self::F::T> {
  constructor •(self::F::S x, self::F::T y, {core::List<self::F::S> a = null, core::List<self::F::T> b = null}) → void
    : super self::A::•(x, y)
    ;
  constructor named(self::F::S x, self::F::T y, [self::F::S a = null, self::F::T b = null]) → void
    : super self::A::•(a, b)
    ;
}
static method test() → void {
  {
    self::A<core::int, core::String> a0 = new self::A::•<core::int, core::String>(3, "hello");
    self::A<core::int, core::String> a1 = new self::A::named<core::int, core::String>(3, "hello");
    self::A<core::int, core::String> a2 = new self::A::•<core::int, core::String>(3, "hello");
    self::A<core::int, core::String> a3 = new self::A::named<core::int, core::String>(3, "hello");
    self::A<core::int, core::String> a4 = let final dynamic #t1 = let dynamic _ = null in invalid-expression "pkg/front_end/testcases/inference/downwards_inference_on_instance_creations_infer_downwards.dart:46:50: Error: The constructor returns type 'test::A<dart.core::int, dynamic>' that isn't of expected type 'test::A<dart.core::int, dart.core::String>'.
Change the type of the object being constructed or the context in which it is used.
        a4 = /*error:INVALID_CAST_NEW_EXPR*/ new A<int, dynamic>(3, \"hello\");
                                                 ^" in let final dynamic #t2 = new self::A::•<core::int, dynamic>(3, "hello") in null;
    self::A<core::int, core::String> a5 = let final dynamic #t3 = let dynamic _ = null in invalid-expression "pkg/front_end/testcases/inference/downwards_inference_on_instance_creations_infer_downwards.dart:48:50: Error: The constructor returns type 'test::A<dynamic, dynamic>' that isn't of expected type 'test::A<dart.core::int, dart.core::String>'.
Change the type of the object being constructed or the context in which it is used.
        a5 = /*error:INVALID_CAST_NEW_EXPR*/ new A<dynamic, dynamic>.named(
                                                 ^" in let final dynamic #t4 = new self::A::named<dynamic, dynamic>(3, "hello") in null;
  }
  {
    self::A<core::int, core::String> a0 = new self::A::•<core::int, core::String>(let final dynamic #t5 = let dynamic _ = null in invalid-expression "pkg/front_end/testcases/inference/downwards_inference_on_instance_creations_infer_downwards.dart:53:48: Error: A value of type 'dart.core::String' can't be assigned to a variable of type 'dart.core::int'.
Try changing the type of the left hand side, or casting the right hand side to 'dart.core::int'.
        /*error:ARGUMENT_TYPE_NOT_ASSIGNABLE*/ \"hello\",
                                               ^" in let final dynamic #t6 = "hello" in null, let final dynamic #t7 = let dynamic _ = null in invalid-expression "pkg/front_end/testcases/inference/downwards_inference_on_instance_creations_infer_downwards.dart:54:48: Error: A value of type 'dart.core::int' can't be assigned to a variable of type 'dart.core::String'.
Try changing the type of the left hand side, or casting the right hand side to 'dart.core::String'.
        /*error:ARGUMENT_TYPE_NOT_ASSIGNABLE*/ 3);
                                               ^" in let final dynamic #t8 = 3 in null);
    self::A<core::int, core::String> a1 = new self::A::named<core::int, core::String>(let final dynamic #t9 = let dynamic _ = null in invalid-expression "pkg/front_end/testcases/inference/downwards_inference_on_instance_creations_infer_downwards.dart:56:48: Error: A value of type 'dart.core::String' can't be assigned to a variable of type 'dart.core::int'.
Try changing the type of the left hand side, or casting the right hand side to 'dart.core::int'.
        /*error:ARGUMENT_TYPE_NOT_ASSIGNABLE*/ \"hello\",
                                               ^" in let final dynamic #t10 = "hello" in null, let final dynamic #t11 = let dynamic _ = null in invalid-expression "pkg/front_end/testcases/inference/downwards_inference_on_instance_creations_infer_downwards.dart:57:48: Error: A value of type 'dart.core::int' can't be assigned to a variable of type 'dart.core::String'.
Try changing the type of the left hand side, or casting the right hand side to 'dart.core::String'.
        /*error:ARGUMENT_TYPE_NOT_ASSIGNABLE*/ 3);
                                               ^" in let final dynamic #t12 = 3 in null);
  }
  {
    self::A<core::int, core::String> a0 = new self::B::•<core::String, core::int>("hello", 3);
    self::A<core::int, core::String> a1 = new self::B::named<core::String, core::int>("hello", 3);
    self::A<core::int, core::String> a2 = new self::B::•<core::String, core::int>("hello", 3);
    self::A<core::int, core::String> a3 = new self::B::named<core::String, core::int>("hello", 3);
    self::A<core::int, core::String> a4 = let final dynamic #t13 = let dynamic _ = null in invalid-expression "pkg/front_end/testcases/inference/downwards_inference_on_instance_creations_infer_downwards.dart:65:47: Error: A value of type 'test::B<dart.core::String, dynamic>' can't be assigned to a variable of type 'test::A<dart.core::int, dart.core::String>'.
Try changing the type of the left hand side, or casting the right hand side to 'test::A<dart.core::int, dart.core::String>'.
        a4 = /*error:INVALID_ASSIGNMENT*/ new B<String, dynamic>(\"hello\", 3);
                                              ^" in let final dynamic #t14 = new self::B::•<core::String, dynamic>("hello", 3) in null;
    self::A<core::int, core::String> a5 = let final dynamic #t15 = let dynamic _ = null in invalid-expression "pkg/front_end/testcases/inference/downwards_inference_on_instance_creations_infer_downwards.dart:67:47: Error: A value of type 'test::B<dynamic, dynamic>' can't be assigned to a variable of type 'test::A<dart.core::int, dart.core::String>'.
Try changing the type of the left hand side, or casting the right hand side to 'test::A<dart.core::int, dart.core::String>'.
        a5 = /*error:INVALID_ASSIGNMENT*/ new B<dynamic, dynamic>.named(
                                              ^" in let final dynamic #t16 = new self::B::named<dynamic, dynamic>("hello", 3) in null;
  }
  {
    self::A<core::int, core::String> a0 = new self::B::•<core::String, core::int>(let final dynamic #t17 = let dynamic _ = null in invalid-expression "pkg/front_end/testcases/inference/downwards_inference_on_instance_creations_infer_downwards.dart:72:48: Error: A value of type 'dart.core::int' can't be assigned to a variable of type 'dart.core::String'.
Try changing the type of the left hand side, or casting the right hand side to 'dart.core::String'.
        /*error:ARGUMENT_TYPE_NOT_ASSIGNABLE*/ 3,
                                               ^" in let final dynamic #t18 = 3 in null, let final dynamic #t19 = let dynamic _ = null in invalid-expression "pkg/front_end/testcases/inference/downwards_inference_on_instance_creations_infer_downwards.dart:73:48: Error: A value of type 'dart.core::String' can't be assigned to a variable of type 'dart.core::int'.
Try changing the type of the left hand side, or casting the right hand side to 'dart.core::int'.
        /*error:ARGUMENT_TYPE_NOT_ASSIGNABLE*/ \"hello\");
                                               ^" in let final dynamic #t20 = "hello" in null);
    self::A<core::int, core::String> a1 = new self::B::named<core::String, core::int>(let final dynamic #t21 = let dynamic _ = null in invalid-expression "pkg/front_end/testcases/inference/downwards_inference_on_instance_creations_infer_downwards.dart:75:48: Error: A value of type 'dart.core::int' can't be assigned to a variable of type 'dart.core::String'.
Try changing the type of the left hand side, or casting the right hand side to 'dart.core::String'.
        /*error:ARGUMENT_TYPE_NOT_ASSIGNABLE*/ 3,
                                               ^" in let final dynamic #t22 = 3 in null, let final dynamic #t23 = let dynamic _ = null in invalid-expression "pkg/front_end/testcases/inference/downwards_inference_on_instance_creations_infer_downwards.dart:76:48: Error: A value of type 'dart.core::String' can't be assigned to a variable of type 'dart.core::int'.
Try changing the type of the left hand side, or casting the right hand side to 'dart.core::int'.
        /*error:ARGUMENT_TYPE_NOT_ASSIGNABLE*/ \"hello\");
                                               ^" in let final dynamic #t24 = "hello" in null);
  }
  {
    self::A<core::int, core::int> a0 = new self::C::•<core::int>(3);
    self::A<core::int, core::int> a1 = new self::C::named<core::int>(3);
    self::A<core::int, core::int> a2 = new self::C::•<core::int>(3);
    self::A<core::int, core::int> a3 = new self::C::named<core::int>(3);
    self::A<core::int, core::int> a4 = let final dynamic #t25 = let dynamic _ = null in invalid-expression "pkg/front_end/testcases/inference/downwards_inference_on_instance_creations_infer_downwards.dart:83:55: Error: A value of type 'test::C<dynamic>' can't be assigned to a variable of type 'test::A<dart.core::int, dart.core::int>'.
Try changing the type of the left hand side, or casting the right hand side to 'test::A<dart.core::int, dart.core::int>'.
    A<int, int> a4 = /*error:INVALID_ASSIGNMENT*/ new C<dynamic>(3);
                                                      ^" in let final dynamic #t26 = new self::C::•<dynamic>(3) in null;
    self::A<core::int, core::int> a5 = let final dynamic #t27 = let dynamic _ = null in invalid-expression "pkg/front_end/testcases/inference/downwards_inference_on_instance_creations_infer_downwards.dart:84:55: Error: A value of type 'test::C<dynamic>' can't be assigned to a variable of type 'test::A<dart.core::int, dart.core::int>'.
Try changing the type of the left hand side, or casting the right hand side to 'test::A<dart.core::int, dart.core::int>'.
    A<int, int> a5 = /*error:INVALID_ASSIGNMENT*/ new C<dynamic>.named(3);
                                                      ^" in let final dynamic #t28 = new self::C::named<dynamic>(3) in null;
  }
  {
    self::A<core::int, core::int> a0 = new self::C::•<core::int>(let final dynamic #t29 = let dynamic _ = null in invalid-expression "pkg/front_end/testcases/inference/downwards_inference_on_instance_creations_infer_downwards.dart:88:48: Error: A value of type 'dart.core::String' can't be assigned to a variable of type 'dart.core::int'.
Try changing the type of the left hand side, or casting the right hand side to 'dart.core::int'.
        /*error:ARGUMENT_TYPE_NOT_ASSIGNABLE*/ \"hello\");
                                               ^" in let final dynamic #t30 = "hello" in null);
    self::A<core::int, core::int> a1 = new self::C::named<core::int>(let final dynamic #t31 = let dynamic _ = null in invalid-expression "pkg/front_end/testcases/inference/downwards_inference_on_instance_creations_infer_downwards.dart:90:48: Error: A value of type 'dart.core::String' can't be assigned to a variable of type 'dart.core::int'.
Try changing the type of the left hand side, or casting the right hand side to 'dart.core::int'.
        /*error:ARGUMENT_TYPE_NOT_ASSIGNABLE*/ \"hello\");
                                               ^" in let final dynamic #t32 = "hello" in null);
  }
  {
    self::A<core::int, core::String> a0 = new self::D::•<dynamic, core::String>("hello");
    self::A<core::int, core::String> a1 = new self::D::named<dynamic, core::String>("hello");
    self::A<core::int, core::String> a2 = new self::D::•<core::int, core::String>("hello");
    self::A<core::int, core::String> a3 = new self::D::named<core::String, core::String>("hello");
    self::A<core::int, core::String> a4 = let final dynamic #t33 = let dynamic _ = null in invalid-expression "pkg/front_end/testcases/inference/downwards_inference_on_instance_creations_infer_downwards.dart:98:47: Error: A value of type 'test::D<dart.core::num, dynamic>' can't be assigned to a variable of type 'test::A<dart.core::int, dart.core::String>'.
Try changing the type of the left hand side, or casting the right hand side to 'test::A<dart.core::int, dart.core::String>'.
        a4 = /*error:INVALID_ASSIGNMENT*/ new D<num, dynamic>(\"hello\");
                                              ^" in let final dynamic #t34 = new self::D::•<core::num, dynamic>("hello") in null;
    self::A<core::int, core::String> a5 = let final dynamic #t35 = let dynamic _ = null in invalid-expression "pkg/front_end/testcases/inference/downwards_inference_on_instance_creations_infer_downwards.dart:100:47: Error: A value of type 'test::D<dynamic, dynamic>' can't be assigned to a variable of type 'test::A<dart.core::int, dart.core::String>'.
Try changing the type of the left hand side, or casting the right hand side to 'test::A<dart.core::int, dart.core::String>'.
        a5 = /*error:INVALID_ASSIGNMENT*/ new D<dynamic, dynamic>.named(
                                              ^" in let final dynamic #t36 = new self::D::named<dynamic, dynamic>("hello") in null;
  }
  {
    self::A<core::int, core::String> a0 = new self::D::•<dynamic, core::String>(let final dynamic #t37 = let dynamic _ = null in invalid-expression "pkg/front_end/testcases/inference/downwards_inference_on_instance_creations_infer_downwards.dart:105:48: Error: A value of type 'dart.core::int' can't be assigned to a variable of type 'dart.core::String'.
Try changing the type of the left hand side, or casting the right hand side to 'dart.core::String'.
        /*error:ARGUMENT_TYPE_NOT_ASSIGNABLE*/ 3);
                                               ^" in let final dynamic #t38 = 3 in null);
    self::A<core::int, core::String> a1 = new self::D::named<dynamic, core::String>(let final dynamic #t39 = let dynamic _ = null in invalid-expression "pkg/front_end/testcases/inference/downwards_inference_on_instance_creations_infer_downwards.dart:107:48: Error: A value of type 'dart.core::int' can't be assigned to a variable of type 'dart.core::String'.
Try changing the type of the left hand side, or casting the right hand side to 'dart.core::String'.
        /*error:ARGUMENT_TYPE_NOT_ASSIGNABLE*/ 3);
                                               ^" in let final dynamic #t40 = 3 in null);
  }
  {
    self::A<self::C<core::int>, core::String> a0 = new self::E::•<core::int, core::String>("hello");
  }
  {
    self::A<core::int, core::String> a0 = new self::F::•<core::int, core::String>(3, "hello", a: <core::int>[3], b: <core::String>["hello"]);
    self::A<core::int, core::String> a1 = new self::F::•<core::int, core::String>(3, "hello", a: <core::int>[let final dynamic #t41 = let dynamic _ = null in invalid-expression "pkg/front_end/testcases/inference/downwards_inference_on_instance_creations_infer_downwards.dart:118:54: Error: A value of type 'dart.core::String' can't be assigned to a variable of type 'dart.core::int'.
Try changing the type of the left hand side, or casting the right hand side to 'dart.core::int'.
          /*error:LIST_ELEMENT_TYPE_NOT_ASSIGNABLE*/ \"hello\"
                                                     ^" in let final dynamic #t42 = "hello" in null], b: <core::String>[let final dynamic #t43 = let dynamic _ = null in invalid-expression "pkg/front_end/testcases/inference/downwards_inference_on_instance_creations_infer_downwards.dart:121:54: Error: A value of type 'dart.core::int' can't be assigned to a variable of type 'dart.core::String'.
Try changing the type of the left hand side, or casting the right hand side to 'dart.core::String'.
          /*error:LIST_ELEMENT_TYPE_NOT_ASSIGNABLE*/ 3
                                                     ^" in let final dynamic #t44 = 3 in null]);
    self::A<core::int, core::String> a2 = new self::F::named<core::int, core::String>(3, "hello", 3, "hello");
    self::A<core::int, core::String> a3 = new self::F::named<core::int, core::String>(3, "hello");
    self::A<core::int, core::String> a4 = new self::F::named<core::int, core::String>(3, "hello", let final dynamic #t45 = let dynamic _ = null in invalid-expression "pkg/front_end/testcases/inference/downwards_inference_on_instance_creations_infer_downwards.dart:129:48: Error: A value of type 'dart.core::String' can't be assigned to a variable of type 'dart.core::int'.
Try changing the type of the left hand side, or casting the right hand side to 'dart.core::int'.
        /*error:ARGUMENT_TYPE_NOT_ASSIGNABLE*/ \"hello\",
                                               ^" in let final dynamic #t46 = "hello" in null, let final dynamic #t47 = let dynamic _ = null in invalid-expression "pkg/front_end/testcases/inference/downwards_inference_on_instance_creations_infer_downwards.dart:130:48: Error: A value of type 'dart.core::int' can't be assigned to a variable of type 'dart.core::String'.
Try changing the type of the left hand side, or casting the right hand side to 'dart.core::String'.
        /*error:ARGUMENT_TYPE_NOT_ASSIGNABLE*/ 3);
                                               ^" in let final dynamic #t48 = 3 in null);
    self::A<core::int, core::String> a5 = new self::F::named<core::int, core::String>(3, "hello", let final dynamic #t49 = let dynamic _ = null in invalid-expression "pkg/front_end/testcases/inference/downwards_inference_on_instance_creations_infer_downwards.dart:134:48: Error: A value of type 'dart.core::String' can't be assigned to a variable of type 'dart.core::int'.
Try changing the type of the left hand side, or casting the right hand side to 'dart.core::int'.
        /*error:ARGUMENT_TYPE_NOT_ASSIGNABLE*/ \"hello\");
                                               ^" in let final dynamic #t50 = "hello" in null);
  }
}
static method main() → dynamic {}