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

class A extends core::Object {
  synthetic constructor •() → self::A
    : super core::Object::•()
    ;
  set x(core::int i) → void {}
}
class B extends self::A {
  synthetic constructor •() → self::B
    : super self::A::•()
    ;
  set x(core::Object o) → void {}
}
static method main() → dynamic {
  new self::B::•().x = "hello";
}