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

class B extends core::Object {
  synthetic constructor •() → void
    ;
}
class X<T extends self::B> extends core::Object {
  synthetic constructor •() → void
    ;
}
class Y extends self::X<dynamic> {
  synthetic constructor •() → void
    ;
}
static method main() → void
  ;