// @dart = 2.9
library test;

B topLevelVariable;
T f<T>() => null;

class A {}

class B extends A {
  A operator +(C v) => null;
  B operator *(B v) => null;
  B operator -(int i) => null;
  C operator &(A v) => null;
  static B staticVariable;
}

class C extends B {}

main() {}
void test_staticVariable() {}
void test_topLevelVariable() {}