Changed the debugger API to allow only one debug event listener to be registe...

src/heap.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 96 matching lines @@
   V(Object, null_value)                                 \
   V(Object, true_value)                                 \
   V(Object, false_value)                                \
   V(String, empty_string)                               \
   V(FixedArray, empty_fixed_array)                      \
   V(DescriptorArray, empty_descriptor_array)            \
   V(Object, the_hole_value)                             \
   V(Map, neander_map)                                   \
   V(JSObject, message_listeners)                        \
   V(Proxy, prototype_accessors)                         \
-  V(JSObject, debug_event_listeners)                    \
   V(Dictionary, code_stubs)                             \
   V(Dictionary, non_monomorphic_cache)                  \
   V(Code, js_entry_code)                                \
   V(Code, js_construct_entry_code)                      \
   V(Code, c_entry_code)                                 \
   V(Code, c_entry_debug_break_code)                     \
   V(FixedArray, number_string_cache)                    \
   V(FixedArray, single_character_string_cache)          \
   V(FixedArray, natives_source_cache)                   \
   V(Object, keyed_lookup_cache)
@@ skipping 1158 matching lines @@
   int marked_count_;
 
   // The count from the end of the previous full GC.  Will be zero if there
   // was no previous full GC.
   int previous_marked_count_;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_HEAP_H_