[TypeFeedbackVector] Combine the literals array and the feedback vector.

src/heap/heap.cc

Index: src/heap/heap.cc
diff --git a/src/heap/heap.cc b/src/heap/heap.cc
index d7bbd02cfebd2a1f19c89cc64b19ece1f4c187dd..b12d64ccd961ff30b9397c2627a053eea0d26511 100644
--- a/src/heap/heap.cc
+++ b/src/heap/heap.cc
@@ -2798,14 +2798,6 @@ void Heap::CreateInitialObjects() {
                                     Smi::kZero);
     empty_type_feedback_vector->set_map(type_feedback_vector_map());
     set_empty_type_feedback_vector(*empty_type_feedback_vector);
-
-    // We use a canonical empty LiteralsArray for all functions that neither
-    // have literals nor need a TypeFeedbackVector (besides the invocation
-    // count special slot).
-    Handle<FixedArray> empty_literals_array =
-        factory->NewFixedArray(1, TENURED);
-    empty_literals_array->set(0, *empty_type_feedback_vector);
-    set_empty_literals_array(*empty_literals_array);
   }
 
   {