symbols should be in the startup snapshot

src/serialize.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 595 matching lines @@
                                int skip);
 
  protected:
   virtual int PartialSnapshotCacheIndex(HeapObject* o);
   virtual bool ShouldBeInThePartialSnapshotCache(HeapObject* o) {
     // Scripts should be referred only through shared function infos.  We can't
     // allow them to be part of the partial snapshot because they contain a
     // unique ID, and deserializing several partial snapshots containing script
     // would cause dupes.
     ASSERT(!o->IsScript());
-    return o->IsString() || o->IsSharedFunctionInfo() ||
+    return o->IsName() || o->IsSharedFunctionInfo() ||
            o->IsHeapNumber() || o->IsCode() ||
            o->IsScopeInfo() ||
            o->map() == HEAP->fixed_cow_array_map();
   }
 
  private:
   Serializer* startup_serializer_;
   DISALLOW_COPY_AND_ASSIGN(PartialSerializer);
 };
 
@@ skipping 26 matching lines @@
  private:
   virtual bool ShouldBeInThePartialSnapshotCache(HeapObject* o) {
     return false;
   }
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_SERIALIZE_H_