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

src/objects.cc

Index: src/objects.cc
===================================================================
--- src/objects.cc	(revision 9575)
+++ src/objects.cc	(working copy)
@@ -7161,6 +7161,8 @@
 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);