library /*isNonNullableByDefault*/;
//
// Problems in library:
//
// pkg/front_end/testcases/general/type_variable_as_super.dart:5:29: Error: The type variable 'T' can't be used as supertype.
// abstract class A<T> extends T {}
//                             ^
//
// pkg/front_end/testcases/general/type_variable_as_super.dart:7:29: Error: The type variable 'T' can't be used as supertype.
// abstract class B<T> extends T {
//                             ^
//
// pkg/front_end/testcases/general/type_variable_as_super.dart:11:20: Error: The type variable 'T' can't be used as supertype.
// class C<T> extends T {}
//                    ^
//
// pkg/front_end/testcases/general/type_variable_as_super.dart:14:7: Error: The class 'A' is abstract and can't be instantiated.
//   new A();
//       ^
//
// pkg/front_end/testcases/general/type_variable_as_super.dart:15:7: Error: The class 'B' is abstract and can't be instantiated.
//   new B();
//       ^
//
import self as self;
import "dart:core" as core;

abstract class A<T extends core::Object? = dynamic> extends core::Object {
  synthetic constructor •() → self::A<self::A::T%>
    : super core::Object::•()
    ;
}
abstract class B<T extends core::Object? = dynamic> extends core::Object {
  constructor •() → self::B<self::B::T%>
    : super core::Object::•()
    ;
}
class C<T extends core::Object? = dynamic> extends core::Object {
  synthetic constructor •() → self::C<self::C::T%>
    : super core::Object::•()
    ;
}
static method main() → dynamic {
  throw new core::AbstractClassInstantiationError::•("A");
  throw new core::AbstractClassInstantiationError::•("B");
  new self::C::•<dynamic>();
}