Another step on the way to context snapshots. We can now refer to...

src/mksnapshot.cc

Index: src/mksnapshot.cc
===================================================================
--- src/mksnapshot.cc	(revision 3696)
+++ src/mksnapshot.cc	(working copy)
@@ -164,10 +164,10 @@
   }
   context.Dispose();
   CppByteSink sink(argv[1]);
-  i::Serializer ser(&sink);
   // This results in a somewhat smaller snapshot, probably because it gets rid
   // of some things that are cached between garbage collections.
   i::Heap::CollectAllGarbage(true);
+  i::StartupSerializer ser(&sink);
   ser.Serialize();
   return 0;
 }