anchor.diff:      if (k != #Future
           && k != #Stream
           // && k != #StreamView
  -        && k != #StreamSubscription) {
  +        && k != #StreamSubscription
  +        && k != #String) {
         return;
       }
       if (m is MethodMirror && m.isRegularMethod) {
  
positive.code:     if (d.simpleName != #then
          && d.simpleName != #whenComplete
          && d.simpleName != #listen
          && d.simpleName != #doWhile) {
        continue;
      }
      if (d is MethodMirror) {
        map[MirrorSystem.getName(d.simpleName)] = methodToMap(d, from);
      }
    }
  
negative.code: main() {
    //var dcMirror = currentMirrorSystem().findLibrary(#dart.io);
    //var dcMirror = currentMirrorSystem().findLibrary(new Symbol("dart.io"));
    //var dcMirror = currentMirrorSystem().findLibrary(#dart.async);
    var dcMirror = currentMirrorSystem().findLibrary(#dart.core);
  
    var jsonMap = new Map<String, Object>();
    jsonMap["\$mod-bin"] = "9.0";
  