library /*isNonNullableByDefault*/;
import self as self;
import "dart:core" as core;

class A extends core::Object {
  field self::B b;
  constructor •(self::B b) → self::A
    ;
}
class B extends core::Object {
  synthetic constructor •() → self::B
    ;
  operator +(core::int i) → self::C
    ;
}
class C extends self::B {
  synthetic constructor •() → self::C
    ;
}
static method main() → dynamic
  ;