Optimizing HandleScope. Also fixed HandleScope destruction when API getter th...

src/assembler.h

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // 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.
 //
@@ skipping 464 matching lines @@
   explicit ExternalReference(const SCTableReference& table_ref);
 
   // One-of-a-kind references. These references are not part of a general
   // pattern. This means that they have to be added to the
   // ExternalReferenceTable in serialize.cc manually.
 
   static ExternalReference perform_gc_function();
   static ExternalReference fill_heap_number_with_random_function();
   static ExternalReference random_uint32_function();
   static ExternalReference transcendental_cache_array_address();
+  static ExternalReference delete_handle_scope_extensions();
 
   // Static data in the keyed lookup cache.
   static ExternalReference keyed_lookup_cache_keys();
   static ExternalReference keyed_lookup_cache_field_offsets();
 
   // Static variable Factory::the_hole_value.location()
   static ExternalReference the_hole_value_location();
 
   // Static variable Heap::roots_address()
   static ExternalReference roots_address();
@@ skipping 17 matching lines @@
   static ExternalReference new_space_mask();
   static ExternalReference heap_always_allocate_scope_depth();
 
   // Used for fast allocation in generated code.
   static ExternalReference new_space_allocation_top_address();
   static ExternalReference new_space_allocation_limit_address();
 
   static ExternalReference double_fp_operation(Token::Value operation);
   static ExternalReference compare_doubles();
 
-  static ExternalReference handle_scope_extensions_address();
   static ExternalReference handle_scope_next_address();
   static ExternalReference handle_scope_limit_address();
+  static ExternalReference handle_scope_level_address();
 
   static ExternalReference scheduled_exception_address();
 
   Address address() const {return reinterpret_cast<Address>(address_);}
 
 #ifdef ENABLE_DEBUGGER_SUPPORT
   // Function Debug::Break()
   static ExternalReference debug_break();
 
   // Used to check if single stepping is enabled in generated code.
@@ skipping 81 matching lines @@
   unsigned int num_bits_set;
   for (num_bits_set = 0; x; x >>= 1) {
     num_bits_set += x & 1;
   }
   return num_bits_set;
 }
 
 } }  // namespace v8::internal
 
 #endif  // V8_ASSEMBLER_H_