Index: runtime/vm/isolate.cc |
diff --git a/runtime/vm/isolate.cc b/runtime/vm/isolate.cc |
index 6f20df9b6fdf23bea25fd27e0f6d352f0e146096..f643406d844bae57616f3610ba66a4b7a6e07a7d 100644 |
--- a/runtime/vm/isolate.cc |
+++ b/runtime/vm/isolate.cc |
@@ -2096,6 +2096,7 @@ void Isolate::set_registered_service_extension_handlers( |
void Isolate::AddDeoptimizingBoxedField(const Field& field) { |
+ ASSERT(field.IsOriginal()); |
MonitorLocker ml(boxed_field_list_monitor_); |
if (boxed_field_list_ == GrowableObjectArray::null()) { |
boxed_field_list_ = GrowableObjectArray::New(Heap::kOld); |