Refactor generating lazy deoptimization descriptors.

runtime/vm/deferred_objects.cc

Index: runtime/vm/deferred_objects.cc
===================================================================
--- runtime/vm/deferred_objects.cc	(revision 40149)
+++ runtime/vm/deferred_objects.cc	(working copy)
@@ -88,9 +88,11 @@
   DeferredObject* obj = deopt_context->GetDeferredObject(index());
   *slot() = obj->object();
   if (FLAG_trace_deoptimization_verbose) {
+    const Class& cls = Class::Handle(Isolate::Current()->class_table()->At(
+        Object::Handle(obj->object()).GetClassId()));
     OS::PrintErr("writing instance ref at %" Px ": %s\n",
                  reinterpret_cast<uword>(slot()),
-                 Instance::Handle(obj->object()).ToCString());
+                 cls.ToCString());

[Vyacheslav Egorov (Google), 2014/09/15 14:35:56]

indicate that we are printing only class somehow [because object is not yet
completely filled] otherwise it would be confusing.

[Florian Schneider, 2014/09/15 15:46:31]

Done.

   }
 }