anchor.diff:      handleCompilePost(request);
     } else {
       request.response.statusCode = 404;
  +    request.response.close();
     }
  -
  -
   }
   
   handleAnalyzePost(io.HttpRequest request) {
  
positive.code:   return memcache.get(query);
  }
  
  void pushCache(String query, String result) {
    memcache.set(query, result);
  }
  
  
negative.code: import 'src/analyzer.dart';
  import 'src/compiler.dart';
  
  var logging;
  var memcache;
  var sdkPath = '/usr/lib/dart';
  var analyzer = new Analyzer(sdkPath);
  var compiler = new Compiler(sdkPath);
  
  main() {
    runAppEngine((io.HttpRequest request) {
  