Fix top level parse error reload test

runtime/vm/object_reload.cc

Index: runtime/vm/object_reload.cc
diff --git a/runtime/vm/object_reload.cc b/runtime/vm/object_reload.cc
index 669ad19f4f8074db834a23393ec10bc63e80ac49..09fa4ba04e3b55c2b7746c656c6081569528d45b 100644
--- a/runtime/vm/object_reload.cc
+++ b/runtime/vm/object_reload.cc
@@ -538,6 +538,7 @@ void Class::CheckReload(const Class& replacement,
               EnsureFinalizedError(context->zone(), *this, replacement, error));
       return;  // No reason to check other properties.
     }
+    ASSERT(replacement.is_finalized());
     TIR_Print("Finalized replacement class for %s\n", ToCString());
   }