Some more instrumentation to narrow down Failure leaks.

src/objects.cc

 // Copyright 2012 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 11564 matching lines @@
 
 template<typename Shape, typename Key>
 MaybeObject* HashTable<Shape, Key>::Allocate(int at_least_space_for,
                                              MinimumCapacity capacity_option,
                                              PretenureFlag pretenure) {
   ASSERT(!capacity_option || IS_POWER_OF_TWO(at_least_space_for));
   int capacity = (capacity_option == USE_CUSTOM_MINIMUM_CAPACITY)
                      ? at_least_space_for
                      : ComputeCapacity(at_least_space_for);
   if (capacity > HashTable::kMaxCapacity) {
-    return Failure::OutOfMemoryException();
+    return Failure::OutOfMemoryException(0x10);
   }
 
   Object* obj;
   { MaybeObject* maybe_obj = Isolate::Current()->heap()->
         AllocateHashTable(EntryToIndex(capacity), pretenure);
     if (!maybe_obj->ToObject(&obj)) return maybe_obj;
   }
   HashTable::cast(obj)->SetNumberOfElements(0);
   HashTable::cast(obj)->SetNumberOfDeletedElements(0);
   HashTable::cast(obj)->SetCapacity(capacity);
@@ skipping 2128 matching lines @@
   set_year(Smi::FromInt(year), SKIP_WRITE_BARRIER);
   set_month(Smi::FromInt(month), SKIP_WRITE_BARRIER);
   set_day(Smi::FromInt(day), SKIP_WRITE_BARRIER);
   set_weekday(Smi::FromInt(weekday), SKIP_WRITE_BARRIER);
   set_hour(Smi::FromInt(hour), SKIP_WRITE_BARRIER);
   set_min(Smi::FromInt(min), SKIP_WRITE_BARRIER);
   set_sec(Smi::FromInt(sec), SKIP_WRITE_BARRIER);
 }
 
 } }  // namespace v8::internal