diff -up chromium-77.0.3865.75/v8/src/objects/js-objects.cc.fix-v8-gcc chromium-77.0.3865.75/v8/src/objects/js-objects.cc
--- chromium-77.0.3865.75/v8/src/objects/js-objects.cc.fix-v8-gcc	2019-09-12 15:55:18.936238980 +0200
+++ chromium-77.0.3865.75/v8/src/objects/js-objects.cc	2019-09-12 15:56:06.796645726 +0200
@@ -3773,6 +3773,10 @@ Handle<NumberDictionary> CreateElementDi
   return new_element_dictionary;
 }
 
+template void JSObject::ApplyAttributesToDictionary(
+    Isolate* isolate, ReadOnlyRoots roots, Handle<NumberDictionary> dictionary,
+    const PropertyAttributes attributes);
+
 template <PropertyAttributes attrs>
 Maybe<bool> JSObject::PreventExtensionsWithTransition(
     Handle<JSObject> object, ShouldThrow should_throw) {