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

typedef A<T extends core::Object> = (T) → dynamic;
typedef B<U extends (U) → dynamic> = (U) → dynamic;
class C extends core::Object {
  synthetic constructor •() → void
    : super core::Object::•()
    ;
  method foo() → dynamic {
    ((core::Null) → dynamic) → dynamic b;
  }
}
static method main() → dynamic {
  ((core::Null) → dynamic) → dynamic b;
}