Only generate a single normal IC per kind per slow-mode map.

src/heap.cc

Index: src/heap.cc
diff --git a/src/heap.cc b/src/heap.cc
index e7012312d9ae35fd14499f6140c01f3a61d64d0d..67ee043e0b1168d49e5fef8914fc9535cc575600 100644
--- a/src/heap.cc
+++ b/src/heap.cc
@@ -2924,14 +2924,15 @@ void Heap::CreateInitialObjects() {
   // Number of queued microtasks stored in Isolate::pending_microtask_count().
   set_microtask_queue(empty_fixed_array());
 
-  set_frozen_symbol(*factory->NewPrivateSymbol());
-  set_nonexistent_symbol(*factory->NewPrivateSymbol());
+  set_detailed_stack_trace_symbol(*factory->NewPrivateSymbol());
   set_elements_transition_symbol(*factory->NewPrivateSymbol());
-  set_uninitialized_symbol(*factory->NewPrivateSymbol());
+  set_frozen_symbol(*factory->NewPrivateSymbol());
   set_megamorphic_symbol(*factory->NewPrivateSymbol());
+  set_nonexistent_symbol(*factory->NewPrivateSymbol());
+  set_normal_ic_symbol(*factory->NewPrivateSymbol());
   set_observed_symbol(*factory->NewPrivateSymbol());
   set_stack_trace_symbol(*factory->NewPrivateSymbol());
-  set_detailed_stack_trace_symbol(*factory->NewPrivateSymbol());
+  set_uninitialized_symbol(*factory->NewPrivateSymbol());
 
   Handle<SeededNumberDictionary> slow_element_dictionary =
       SeededNumberDictionary::New(isolate(), 0, TENURED);