Revert "Use symbols instead of hidden properties for i18n markers."

src/heap/heap.cc

Index: src/heap/heap.cc
diff --git a/src/heap/heap.cc b/src/heap/heap.cc
index 3f63dd198356b86ef31c9c092a82b35a54baaa90..bc200451be092805dfe910ac0001794910823c1c 100644
--- a/src/heap/heap.cc
+++ b/src/heap/heap.cc
@@ -2868,10 +2868,20 @@ void Heap::CreateInitialObjects() {
   // Number of queued microtasks stored in Isolate::pending_microtask_count().
   set_microtask_queue(empty_fixed_array());
 
-#define SYMBOL_INIT(name) \
-  roots_[k##name##RootIndex] = *factory->NewPrivateOwnSymbol();
-  PRIVATE_SYMBOL_LIST(SYMBOL_INIT)
-#undef SYMBOL_INIT
+  set_detailed_stack_trace_symbol(*factory->NewPrivateOwnSymbol());
+  set_elements_transition_symbol(*factory->NewPrivateOwnSymbol());
+  set_frozen_symbol(*factory->NewPrivateOwnSymbol());
+  set_megamorphic_symbol(*factory->NewPrivateOwnSymbol());
+  set_premonomorphic_symbol(*factory->NewPrivateOwnSymbol());
+  set_generic_symbol(*factory->NewPrivateOwnSymbol());
+  set_nonexistent_symbol(*factory->NewPrivateOwnSymbol());
+  set_normal_ic_symbol(*factory->NewPrivateOwnSymbol());
+  set_observed_symbol(*factory->NewPrivateOwnSymbol());
+  set_stack_trace_symbol(*factory->NewPrivateOwnSymbol());
+  set_uninitialized_symbol(*factory->NewPrivateOwnSymbol());
+  set_home_object_symbol(*factory->NewPrivateOwnSymbol());
+  set_promise_debug_marker_symbol(*factory->NewPrivateOwnSymbol());
+  set_promise_has_handler_symbol(*factory->NewPrivateOwnSymbol());
 
   Handle<SeededNumberDictionary> slow_element_dictionary =
       SeededNumberDictionary::New(isolate(), 0, TENURED);