Functions are objects too!

runtime/vm/service.cc

Index: runtime/vm/service.cc
diff --git a/runtime/vm/service.cc b/runtime/vm/service.cc
index 8fb17157efda44fb5a39e316473764224cc46c60..a517f21c1336952ecd5fd4c8cf688d5d8df1de74 100644
--- a/runtime/vm/service.cc
+++ b/runtime/vm/service.cc
@@ -1485,19 +1485,21 @@ static bool PrintInboundReferences(Isolate* isolate,
       slot_offset ^= path.At((i * 2) + 1);
 
       jselement.AddProperty("source", source);
-      jselement.AddProperty("slot", "<unknown>");
       if (source.IsArray()) {
         intptr_t element_index = slot_offset.Value() -
             (Array::element_offset(0) >> kWordSizeLog2);
-        jselement.AddProperty("slot", element_index);
+        jselement.AddProperty("parentListIndex", element_index);
       } else if (source.IsInstance()) {
         source_class ^= source.clazz();
         parent_field_map = source_class.OffsetToFieldMap();
         intptr_t offset = slot_offset.Value();
         if (offset > 0 && offset < parent_field_map.Length()) {
           field ^= parent_field_map.At(offset);
-          jselement.AddProperty("slot", field);
+          jselement.AddProperty("parentField", field);
         }
+      } else {
+        intptr_t element_index = slot_offset.Value();
+        jselement.AddProperty("_parentWordOffset", element_index);
       }
 
       // We nil out the array after generating the response to prevent
@@ -1870,7 +1872,7 @@ static bool GetInstances(Isolate* isolate, JSONStream* js) {
     JSONArray samples(&jsobj, "samples");
     for (int i = 0; i < storage.Length(); i++) {
       const Object& sample = Object::Handle(storage.At(i));
-      samples.AddValue(Instance::Cast(sample));
+      samples.AddValue(sample);
     }
   }
   return true;