diff --git a/src/objects-body-descriptors-inl.h b/src/objects-body-descriptors-inl.h
index ba3c4be..cd4be13 100644
--- a/src/objects-body-descriptors-inl.h
+++ b/src/objects-body-descriptors-inl.h
@@ -193,19 +193,24 @@
 class BytecodeArray::BodyDescriptor final : public BodyDescriptorBase {
  public:
   static bool IsValidSlot(HeapObject* obj, int offset) {
-    return offset == kConstantPoolOffset;
+    return offset >= kConstantPoolOffset &&
+           offset <= kSourcePositionTableOffset;
   }
 
   template <typename ObjectVisitor>
   static inline void IterateBody(HeapObject* obj, int object_size,
                                  ObjectVisitor* v) {
     IteratePointer(obj, kConstantPoolOffset, v);
+    IteratePointer(obj, kHandlerTableOffset, v);
+    IteratePointer(obj, kSourcePositionTableOffset, v);
   }
 
   template <typename StaticVisitor>
   static inline void IterateBody(HeapObject* obj, int object_size) {
     Heap* heap = obj->GetHeap();
     IteratePointer<StaticVisitor>(heap, obj, kConstantPoolOffset);
+    IteratePointer<StaticVisitor>(heap, obj, kHandlerTableOffset);
+    IteratePointer<StaticVisitor>(heap, obj, kSourcePositionTableOffset);
   }
 
   static inline int SizeOf(Map* map, HeapObject* obj) {
@@ -464,7 +469,6 @@
     case JS_MAP_TYPE:
     case JS_SET_ITERATOR_TYPE:
     case JS_MAP_ITERATOR_TYPE:
-    case JS_ITERATOR_RESULT_TYPE:
     case JS_REGEXP_TYPE:
     case JS_GLOBAL_PROXY_TYPE:
     case JS_GLOBAL_OBJECT_TYPE: