--- a/js/src/gc/Marking.cpp
+++ b/js/src/gc/Marking.cpp
@@ -3393,29 +3393,29 @@ IsAboutToBeFinalizedInternal(T** thingp)
         *thingp = Forwarded(thing);
         return false;
     }
 
     return false;
 }
 
 template <typename S>
-struct IsAboutToBeFinalizedFunctor : public IdentityDefaultAdaptor<S> {
+struct IsAboutToBeFinalizedInternalFunctor : public IdentityDefaultAdaptor<S> {
     template <typename T> S operator()(T* t, bool* rv) {
         *rv = IsAboutToBeFinalizedInternal(&t);
         return js::gc::RewrapTaggedPointer<S, T>::wrap(t);
     }
 };
 
 template <typename T>
 static bool
 IsAboutToBeFinalizedInternal(T* thingp)
 {
     bool rv = false;
-    *thingp = DispatchTyped(IsAboutToBeFinalizedFunctor<T>(), *thingp, &rv);
+    *thingp = DispatchTyped(IsAboutToBeFinalizedInternalFunctor<T>(), *thingp, &rv);
     return rv;
 }
 
 namespace js {
 namespace gc {
 
 template <typename T>
 bool