remove a bunch of isolate::current in api.cc

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 5487 matching lines @@
 /**
  * An external exception handler.
  */
 class V8_EXPORT TryCatch {
  public:
   /**
    * Creates a new try/catch block and registers it with v8.  Note that
    * all TryCatch blocks should be stack allocated because the memory
    * location itself is compared against JavaScript try/catch blocks.
    */
+  // TODO(dcarney): deprecate.
   TryCatch();
 
   /**
+   * Creates a new try/catch block and registers it with v8.  Note that
+   * all TryCatch blocks should be stack allocated because the memory
+   * location itself is compared against JavaScript try/catch blocks.
+   */
+  TryCatch(Isolate* isolate);
+
+  /**
    * Unregisters and deletes this try/catch block.
    */
   ~TryCatch();
 
   /**
    * Returns true if an exception has been caught by this try/catch block.
    */
   bool HasCaught() const;
 
   /**
@@ skipping 1822 matching lines @@
  */
 
 
 }  // namespace v8
 
 
 #undef TYPE_CHECK
 
 
 #endif  // V8_H_