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

abstract class A<T extends core::Object = dynamic> extends core::Object {
  generic-covariant-impl field core::List<self::A::T> z = null;
  synthetic constructor •() → void
    : super core::Object::•()
    ;
  abstract get x() → core::List<self::A::T>;
  abstract set y(generic-covariant-impl core::List<self::A::T> value) → void;
}
class B extends self::A<core::int> {
  field core::List<core::int> x = null;
  generic-covariant-impl field core::List<core::int> y = null;
  generic-covariant-impl field core::List<core::int> z = null;
  synthetic constructor •() → void
    : super self::A::•()
    ;
}
static method main() → dynamic {}