[TypeFeedbackVector] Root literal arrays in function literals slots

src/type-feedback-vector.cc

Index: src/type-feedback-vector.cc
diff --git a/src/type-feedback-vector.cc b/src/type-feedback-vector.cc
index c5908c717b40f7964381fab7579947d00ece39fa..dee77a1df1b37cd7e220b63810b43f9ed8db7c03 100644
--- a/src/type-feedback-vector.cc
+++ b/src/type-feedback-vector.cc
@@ -252,10 +252,8 @@ Handle<TypeFeedbackVector> TypeFeedbackVector::New(
         // the empty literals array here.
         array->set(index, *factory->empty_literals_array(), SKIP_WRITE_BARRIER);
       } else {
-        // TODO(mvstanton): Create the array.
-        // Handle<FixedArray> value = factory->NewFixedArray(length);
-        // array->set(index, *value);
-        array->set(index, *factory->empty_literals_array(), SKIP_WRITE_BARRIER);
+        Handle<FixedArray> value = factory->NewFixedArray(length);
+        array->set(index, *value);
       }
     }
     i += entry_size;
@@ -376,10 +374,10 @@ void TypeFeedbackVector::ClearSlotsImpl(SharedFunctionInfo* shared,
           break;
         }
         case FeedbackVectorSlotKind::CREATE_CLOSURE: {
-          // Fill the array with undefined.
-          FixedArray* array = FixedArray::cast(Get(slot));
-          for (int i = 1; i < array->length(); i++) {
-            array->set_undefined(i);
+          // Clear the literals in the embedded LiteralsArray.
+          LiteralsArray* literals = LiteralsArray::cast(Get(slot));
+          for (int i = 0; i < literals->literals_count(); i++) {
+            literals->set_literal_undefined(i);
           }
           break;
         }