Make preparsing data reusable.

src/parser.h

 // Copyright 2006-2008 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 83 matching lines @@
   static const int kPropertyCountOffset = 3;
   static const int kPredataFunctionSkipOffset = 4;
   static const int kPredataSymbolSkipOffset = 5;
 };
 
 
 class ScriptDataImpl : public ScriptData {
  public:
   explicit ScriptDataImpl(Vector<unsigned> store)
       : store_(store),
-        function_index_(kHeaderSize),
-        owns_store_(true) {
-    Initialize();
-  }
+        owns_store_(true) { }
 
   // Create an empty ScriptDataImpl that is guaranteed to not satisfy
   // a SanityCheck.
   ScriptDataImpl() : store_(Vector<unsigned>()), owns_store_(false) { }
 
   virtual ~ScriptDataImpl();
   virtual int Length();
   virtual const char* Data();
   virtual bool HasError();
 
@@ skipping 65 matching lines @@
   bool owns_store_;
 
   unsigned Read(int position);
   unsigned* ReadAddress(int position);
   // Reads a number from the current symbols
   int ReadNumber(byte** source);
 
   ScriptDataImpl(const char* backing_store, int length)
       : store_(reinterpret_cast<unsigned*>(const_cast<char*>(backing_store)),
                length / sizeof(unsigned)),
-        function_index_(kHeaderSize),
         owns_store_(false) {
     ASSERT_EQ(0, reinterpret_cast<intptr_t>(backing_store) % sizeof(unsigned));
-    Initialize();
   }
 
   // Read strings written by ParserRecorder::WriteString.
   static const char* ReadString(unsigned* start, int* chars);
 
   friend class ScriptData;
 };
 
 
 // The parser: Takes a script and and context information, and builds a
@@ skipping 65 matching lines @@
   static const int kTypeSlot = 0;
   static const int kElementsSlot = 1;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(CompileTimeValue);
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_PARSER_H_