Disable experimental natives when creating a start-up snapshot.

src/mksnapshot.cc

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <errno.h>
 #include <signal.h>
 #include <stdio.h>
 
 #include "src/v8.h"
 
@@ skipping 120 matching lines @@
     i += read;
   }
   fclose(file);
   return chars;
 }
 
 
 int main(int argc, char** argv) {
   // By default, log code create information in the snapshot.
   i::FLAG_log_code = true;
-
-  // Omit from the snapshot natives for features that can be turned off
-  // at runtime.
-  i::FLAG_harmony_shipping = false;
-
   i::FLAG_logfile_per_isolate = false;
 
   // Print the usage if an error occurs when parsing the command line
   // flags or if the help flag is set.
   int result = i::FlagList::SetFlagsFromCommandLine(&argc, argv, true);
   if (result > 0 || (argc != 2 && argc != 3) || i::FLAG_help) {
     ::printf("Usage: %s [flag] ... outfile\n", argv[0]);
     i::FlagList::PrintHelp();
     return !i::FLAG_help;
   }
@@ skipping 13 matching lines @@
     writer.WriteSnapshot(blob);
     delete[] extra_code;
     delete[] blob.data;
   }
 
   V8::Dispose();
   V8::ShutdownPlatform();
   delete platform;
   return 0;
 }