Captured arguments object materialization

src/heap.cc

Index: src/heap.cc
diff --git a/src/heap.cc b/src/heap.cc
index 862e2eaa24b205bb3051458a5a50d1c06c30c18d..5ab028c284b6ec331369aca3d3c2806f3ba72bab 100644
--- a/src/heap.cc
+++ b/src/heap.cc
@@ -3293,6 +3293,15 @@ bool Heap::CreateInitialObjects() {
   Symbol::cast(obj)->set_is_private(true);
   set_observed_symbol(Symbol::cast(obj));
 
+  { MaybeObject* maybe_obj = AllocateFixedArray(1, TENURED);
+    if (!maybe_obj->ToObject(&obj)) return false;
+    MaybeObject* maybe_obj_el = AllocateFixedArray(0, TENURED);
+    Object* obj_el;
+    if (!maybe_obj_el->ToObject(&obj_el)) return false;
+    FixedArray::cast(obj)->set(0, obj_el);
+  }
+  set_materialized_objects(FixedArray::cast(obj));
+
   // Handling of script id generation is in Factory::NewScript.
   set_last_script_id(Smi::FromInt(v8::Script::kNoScriptId));