[heap] Pass a force_promotion flag to the evacuation routine in the scavenger.

src/heap/scavenger-inl.h

Index: src/heap/scavenger-inl.h
diff --git a/src/heap/scavenger-inl.h b/src/heap/scavenger-inl.h
index 9edf0511768a960760940ebb4b026ba873d254c5..3b96f648f79a818121e2076d961687680aed2bf3 100644
--- a/src/heap/scavenger-inl.h
+++ b/src/heap/scavenger-inl.h
@@ -10,7 +10,8 @@
 namespace v8 {
 namespace internal {
 
-void Scavenger::ScavengeObject(HeapObject** p, HeapObject* object) {
+void Scavenger::ScavengeObject(HeapObject** p, HeapObject* object,
+                               PromotionMode promotion_mode) {
   DCHECK(object->GetIsolate()->heap()->InFromSpace(object));
 
   // We use the first word (where the map pointer usually is) of a heap
@@ -34,18 +35,19 @@ void Scavenger::ScavengeObject(HeapObject** p, HeapObject* object) {
   // AllocationMementos are unrooted and shouldn't survive a scavenge
   DCHECK(object->map() != object->GetHeap()->allocation_memento_map());
   // Call the slow part of scavenge object.
-  return ScavengeObjectSlow(p, object);
+  return ScavengeObjectSlow(p, object, promotion_mode);
 }
 
-SlotCallbackResult Scavenger::CheckAndScavengeObject(Heap* heap,
-                                                     Address slot_address) {
+SlotCallbackResult Scavenger::CheckAndScavengeObject(
+    Heap* heap, Address slot_address, PromotionMode promotion_mode) {
   Object** slot = reinterpret_cast<Object**>(slot_address);
   Object* object = *slot;
   if (heap->InFromSpace(object)) {
     HeapObject* heap_object = reinterpret_cast<HeapObject*>(object);
     DCHECK(heap_object->IsHeapObject());
 
-    ScavengeObject(reinterpret_cast<HeapObject**>(slot), heap_object);
+    ScavengeObject(reinterpret_cast<HeapObject**>(slot), heap_object,
+                   promotion_mode);
 
     object = *slot;
     // If the object was in from space before and is after executing the
@@ -67,7 +69,8 @@ void StaticScavengeVisitor::VisitPointer(Heap* heap, HeapObject* obj,
   Object* object = *p;
   if (!heap->InNewSpace(object)) return;
   Scavenger::ScavengeObject(reinterpret_cast<HeapObject**>(p),
-                            reinterpret_cast<HeapObject*>(object));
+                            reinterpret_cast<HeapObject*>(object),
+                            DEFAULT_PROMOTION);
 }
 
 }  // namespace internal