Add convenience method for converting v8::PersistentBase to v8::Local

include/v8.h

 // 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.
 
 /** \mainpage V8 API Reference Guide
  *
  * V8 is Google's open source JavaScript engine.
  *
  * This set of documents provides reference material generated from the
  * V8 header file, include/v8.h.
@@ skipping 491 matching lines @@
   /**
    * If non-empty, destroy the underlying storage cell
    * and create a new one with the contents of other if other is non empty
    */
   template <class S>
   V8_INLINE void Reset(Isolate* isolate, const PersistentBase<S>& other);
 
   V8_INLINE bool IsEmpty() const { return val_ == NULL; }
   V8_INLINE void Empty() { val_ = 0; }
 
+  V8_INLINE Local<T> Get(Isolate* isolate) const {
+    return Local<T>::New(isolate, *this);
+  }
+
   template <class S>
   V8_INLINE bool operator==(const PersistentBase<S>& that) const {
     internal::Object** a = reinterpret_cast<internal::Object**>(this->val_);
     internal::Object** b = reinterpret_cast<internal::Object**>(that.val_);
     if (a == NULL) return b == NULL;
     if (b == NULL) return false;
     return *a == *b;
   }
 
   template <class S>
@@ skipping 7816 matching lines @@
  */
 
 
 }  // namespace v8
 
 
 #undef TYPE_CHECK
 
 
 #endif  // V8_H_