anchor.diff:      block.statements.add(js.return_(js[objectName]['prototype']));
   
       buffer.add(jsAst.prettyPrint(
  -        js[isolateProperties][key].assign(js.fun(['receiver'], block)),
  +        js[isolateProperties][key].assign(
  +            js.fun(['receiver'], block)).toStatement(),
           compiler));
  -    buffer.add(N);
     }
   
     /**
  
positive.code: 
      jsAst.Expression init =
          js[classesCollector][className].assign(builder.toObjectInitializer());
      buffer.add(jsAst.prettyPrint(init, compiler));
      buffer.add('$N$n');
    }
  
    bool get getterAndSetterCanBeImplementedByFieldSpec => true;
  
negative.code:       jsAst.PropertyAccess property =
            js[isolateProperties][name];
  
        buffer.add(jsAst.prettyPrint(property.assign(function).toStatement(),
                                     compiler));
      }
    }
  
  