Merge bleeding edge up to 8774 into the GC branch.

src/mark-compact.cc

Index: src/mark-compact.cc
===================================================================
--- src/mark-compact.cc	(revision 8778)
+++ src/mark-compact.cc	(working copy)
@@ -2118,7 +2118,6 @@
               cached_map,
               SKIP_WRITE_BARRIER);
         }
-        new_number_of_transitions++;
       }
 
       // Fill slots that became free with undefined value.
@@ -3312,11 +3311,9 @@
     GDBJITInterface::RemoveCode(reinterpret_cast<Code*>(obj));
   }
 #endif
-#ifdef ENABLE_LOGGING_AND_PROFILING
   if (obj->IsCode()) {
     PROFILE(isolate, CodeDeleteEvent(obj->address()));
   }
-#endif
 }