Serializer: ensure unique script ids when deserializing.

src/serialize.cc

 // Copyright 2012 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 "src/v8.h"
 
 #include "src/accessors.h"
 #include "src/api.h"
 #include "src/base/platform/platform.h"
 #include "src/bootstrapper.h"
@@ skipping 702 matching lines @@
     // Uninitialize hash field as the hash seed may have changed.
     string->set_hash_field(String::kEmptyHashField);
     if (string->IsInternalizedString()) {
       DisallowHeapAllocation no_gc;
       HandleScope scope(isolate_);
       StringTableInsertionKey key(string);
       String* canonical = *StringTable::LookupKey(isolate_, &key);
       string->SetForwardedInternalizedString(canonical);
       return canonical;
     }
+  } else if (obj->IsScript()) {
+    Script::cast(obj)->set_id(isolate_->heap()->NextScriptId());
   }
   return obj;
 }
 
 
 HeapObject* Deserializer::GetBackReferencedObject(int space) {
   HeapObject* obj;
   BackReference back_reference(source_.GetInt());
   if (space == LO_SPACE) {
     CHECK(back_reference.chunk_index() == 0);
@@ skipping 1798 matching lines @@
   DisallowHeapAllocation no_gc;
   SerializedCodeData* scd = new SerializedCodeData(cached_data);
   SanityCheckResult r = scd->SanityCheck(isolate, source);
   if (r == CHECK_SUCCESS) return scd;
   cached_data->Reject();
   source->GetIsolate()->counters()->code_cache_reject_reason()->AddSample(r);
   delete scd;
   return NULL;
 }
 } }  // namespace v8::internal