Introduce code serializer/deserializer.

src/parser.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/api.h"
 #include "src/ast.h"
 #include "src/base/platform/platform.h"
 #include "src/bootstrapper.h"
@@ skipping 164 matching lines @@
     // Only call immediately after adding an atom or character!
     UNREACHABLE();
     return;
   }
   terms_.Add(
       new(zone()) RegExpQuantifier(min, max, quantifier_type, atom), zone());
   LAST(ADD_TERM);
 }
 
 
-ScriptData* ScriptData::New(const char* data, int length) {
+ScriptData* ScriptData::New(const char* data, int length, bool owns_store) {
   // The length is obviously invalid.
   if (length % sizeof(unsigned) != 0) {
     return NULL;
   }
 
   int deserialized_data_length = length / sizeof(unsigned);
   unsigned* deserialized_data;
-  bool owns_store = reinterpret_cast<intptr_t>(data) % sizeof(unsigned) != 0;
+  owns_store =
+      owns_store || reinterpret_cast<intptr_t>(data) % sizeof(unsigned) != 0;
   if (owns_store) {
     // Copy the data to align it.
     deserialized_data = i::NewArray<unsigned>(deserialized_data_length);
     i::CopyBytes(reinterpret_cast<char*>(deserialized_data),
                  data, static_cast<size_t>(length));
   } else {
     // If aligned, don't create a copy of the data.
     deserialized_data = reinterpret_cast<unsigned*>(const_cast<char*>(data));
   }
   return new ScriptData(
@@ skipping 4662 matching lines @@
     info()->SetAstValueFactory(ast_value_factory_);
   }
   ast_value_factory_ = NULL;
 
   InternalizeUseCounts();
 
   return (result != NULL);
 }
 
 } }  // namespace v8::internal