Removed the Isolate* field from literal nodes.

src/ast-value-factory.h

 // Copyright 2014 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 76 matching lines @@
         reinterpret_cast<const uint16_t*>(literal_bytes_.start());
     return *c;
   }
 
   // For storing AstRawStrings in a hash map.
   uint32_t hash() const {
     return hash_;
   }
   static bool Compare(void* a, void* b);
 
+  bool operator==(const AstRawString& rhs) const;
+
  private:
   friend class AstValueFactory;
   friend class AstRawStringInternalizationKey;
 
   AstRawString(bool is_one_byte, const Vector<const byte>& literal_bytes,
             uint32_t hash)
       : is_one_byte_(is_one_byte), literal_bytes_(literal_bytes), hash_(hash) {}
 
   AstRawString()
       : is_one_byte_(true),
@@ skipping 229 matching lines @@
   const AstRawString* name##_string_;
   STRING_CONSTANTS(F)
 #undef F
 };
 
 } }  // namespace v8::internal
 
 #undef STRING_CONSTANTS
 
 #endif  // V8_AST_VALUE_FACTORY_H_