library /*isNonNullableByDefault*/;
//
// Problems in library:
//
// pkg/front_end/testcases/value_class/value_extends_non_value_error.dart:8:7: Error: Field 'numLegs' should be initialized because its type 'int' doesn't allow null.
//   int numLegs;
//       ^^^^^^^
//
import self as self;
import "dart:core" as core;

class Animal extends core::Object {
  field core::int numLegs = null;
  synthetic constructor •() → self::Animal
    : super core::Object::•()
    ;
}
@#C1
class Cat extends self::Animal {
  synthetic constructor •() → self::Cat
    : super self::Animal::•()
    ;
}
static const field core::String valueClass = #C1;
static method main() → dynamic {}

constants  {
  #C1 = "valueClass"
}