// We can't deserialize lambdas so we just save them as null
svoid test_structure_lambdasAndAnonymousClasses() {
  IF0 lambda = () -> 0;
  structure_Data d = new {
    structure_ClassInfo newClass(Class c) {
      structure_ClassInfo info = super.newClass(c);
      print(c + " => " + info.nullInstances);
      ret info;
    }
  };
  assertEqualsVerbose("null", struct(lambda, d));
  
  Runnable anon = r {};
  assertEqualsVerbose("null", struct(anon));
}

Began life as a copy of #1031248