Enable layout descriptor consistency checks in heap verification mode.

src/objects.cc

Index: src/objects.cc
diff --git a/src/objects.cc b/src/objects.cc
index 44057dbd9f51de787e62c18fe9bf196a36260a77..d0ee6d942fdc5c9f590c25b99c00da951a3fe576 100644
--- a/src/objects.cc
+++ b/src/objects.cc
@@ -6854,7 +6854,14 @@ Handle<Map> Map::CopyInstallDescriptors(
         LayoutDescriptor::AppendIfFastOrUseFull(map, details,
                                                 full_layout_descriptor);
     result->set_layout_descriptor(*layout_descriptor);
+#ifdef VERIFY_HEAP
+    // TODO(ishell): remove these checks from VERIFY_HEAP mode.
+    if (FLAG_verify_heap) {
+      CHECK(result->layout_descriptor()->IsConsistentWithMap(*result));
+    }
+#else
     SLOW_DCHECK(result->layout_descriptor()->IsConsistentWithMap(*result));
+#endif
     result->set_visitor_id(StaticVisitorBase::GetVisitorId(*result));
   }