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

class A extends core::Object {
  synthetic constructor •() → self::A
    ;
  method foo(core::num n) → core::num
    ;
}
abstract class B<X extends core::Object? = dynamic> extends core::Object {
  synthetic constructor •() → self::B<self::B::X%>
    ;
  abstract method foo(covariant-by-class self::B::X% x) → self::B::X%;
}
abstract class _C&A&B = self::A with self::B<core::num> /*isAnonymousMixin*/  {
  synthetic constructor •() → self::_C&A&B
    : super self::A::•()
    ;
  forwarding-stub method foo(covariant-by-class core::num x) → core::num
    return super.{self::A::foo}(x);
}
class C extends self::_C&A&B {
  synthetic constructor •() → self::C
    ;
}
static method main() → void
  ;