// @dart = 2.6
import "implicit_new.dart" as prefix;

class Bar {
  Bar.named();
  operator +(other) => null;
}

class Foo {
  operator +(other) => null;
}

class IndexTester {
  operator [](_) => null;
  void operator []=(_a, _b) {}
}

f(x) => x;
main() {}
testNSM() {}