VM: [Kernel] Ensure we record [FieldLoadInstr]s in the ParsedFunction when using field guards

runtime/vm/aot_optimizer.cc

Index: runtime/vm/aot_optimizer.cc
diff --git a/runtime/vm/aot_optimizer.cc b/runtime/vm/aot_optimizer.cc
index 57ff3497f321817c97a1e1441ded188be773471e..35c50b616ff395855bea70233bf6018e21b31e85 100644
--- a/runtime/vm/aot_optimizer.cc
+++ b/runtime/vm/aot_optimizer.cc
@@ -1079,7 +1079,7 @@ bool AotOptimizer::InlineImplicitInstanceGetter(InstanceCallInstr* call) {
   }
   LoadFieldInstr* load = new (Z) LoadFieldInstr(
       new (Z) Value(call->ArgumentAt(0)), &field,
-      AbstractType::ZoneHandle(Z, field.type()), call->token_pos());
+      AbstractType::ZoneHandle(Z, field.type()), call->token_pos(), NULL);
   load->set_is_immutable(field.is_final());
 
   // Discard the environment from the original instruction because the load