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

abstract class A extends core::Object {
  synthetic constructor •() → self::A*
    ;
}
abstract class B extends core::Object {
  synthetic constructor •() → self::B*
    ;
}
class C extends core::Object {
  field self::A* a;
  synthetic constructor •() → self::C*
    ;
  method f(core::Object* o) → void
    ;
}
static method main() → dynamic
  ;