Mark some of the places we leave V8 via callbacks as transitions to...

src/builtins.cc

 // 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 358 matching lines @@
         data,
         holder,
         callee,
         is_construct,
         reinterpret_cast<void**>(__argv__ - 1),
         __argc__ - 1);
 
     v8::Handle<v8::Value> value;
     {
       // Leaving JavaScript.
-      VMState state(OTHER);
+      VMState state(EXTERNAL);
       value = callback(args);
     }
     if (value.IsEmpty()) {
       result = Heap::undefined_value();
     } else {
       result = *reinterpret_cast<Object**>(*value);
     }
 
     RETURN_IF_SCHEDULED_EXCEPTION();
     if (!is_construct || result->IsJSObject()) return result;
@@ skipping 40 matching lines @@
     v8::Arguments args = v8::ImplementationUtilities::NewArguments(
         data,
         self,
         callee,
         false,
         reinterpret_cast<void**>(__argv__ - 1),
         __argc__ - 1);
     v8::Handle<v8::Value> value;
     {
       // Leaving JavaScript.
-      VMState state(OTHER);
+      VMState state(EXTERNAL);
       value = callback(args);
     }
     if (value.IsEmpty()) {
       result = Heap::undefined_value();
     } else {
       result = *reinterpret_cast<Object**>(*value);
     }
   }
   // Check for exceptions and return result.
   RETURN_IF_SCHEDULED_EXCEPTION();
@@ skipping 284 matching lines @@
       if (entry->contains(pc)) {
         return names_[i];
       }
     }
   }
   return NULL;
 }
 
 
 } }  // namespace v8::internal