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

class A1 extends core::Object {
  final field core::int foo;
  constructor •(core::int foo) → self::A1
    ;
}
class B1 extends self::A1 {
  constructor •(core::int foo) → self::B1
    ;
}
class C1 extends self::A1 {
  constructor •(core::int foo) → self::C1
    ;
}
class A2 extends core::Object {
  final field core::int foo;
  final field core::String bar;
  constructor •(core::int foo, core::String bar) → self::A2
    ;
}
class B2 extends self::A2 {
  constructor •() → self::B2
    ;
}
class C2 extends self::A2 {
  constructor •(core::int foo) → self::C2
    ;
}
static method main() → dynamic
  ;