Add --noclever-optimizations to disable some things that have

src/objects.cc

 // Copyright 2011 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 7143 matching lines @@
       DeoptimizationOutputData::cast(unoptimized->deoptimization_data());
   unsigned ignore = Deoptimizer::GetOutputInfo(data, id, this);
   USE(ignore);
   return true;  // Return true if there was no ASSERT.
 }
 
 
 void SharedFunctionInfo::StartInobjectSlackTracking(Map* map) {
   ASSERT(!IsInobjectSlackTrackingInProgress());
 
+  if (!FLAG_clever_optimizations) return;
+
   // Only initiate the tracking the first time.
   if (live_objects_may_exist()) return;
   set_live_objects_may_exist(true);
 
   // No tracking during the snapshot construction phase.
   if (Serializer::enabled()) return;
 
   if (map->unused_property_fields() == 0) return;
 
   // Nonzero counter is a leftover from the previous attempt interrupted
@@ skipping 5005 matching lines @@
   if (break_point_objects()->IsUndefined()) return 0;
   // Single break point.
   if (!break_point_objects()->IsFixedArray()) return 1;
   // Multiple break points.
   return FixedArray::cast(break_point_objects())->length();
 }
 #endif  // ENABLE_DEBUGGER_SUPPORT
 
 
 } }  // namespace v8::internal