fix mixup of TRACE_SUBSET/SERIALIZE
diff --git a/src/hb-ot-layout-common.hh b/src/hb-ot-layout-common.hh
index aaf9aa9..ea01c5a 100644
--- a/src/hb-ot-layout-common.hh
+++ b/src/hb-ot-layout-common.hh
@@ -1781,7 +1781,7 @@
 		  const hb_bimap_t &inner_map,
 		  const hb_bimap_t &region_map)
   {
-    TRACE_SUBSET (this);
+    TRACE_SERIALIZE (this);
     if (unlikely (!c->extend_min (*this))) return_trace (false);
     itemCount = inner_map.get_count ();
     
@@ -1929,7 +1929,7 @@
 		  const VariationStore *src,
   		  const hb_array_t <hb_bimap_t> &inner_remaps)
   {
-    TRACE_SUBSET (this);
+    TRACE_SERIALIZE (this);
     unsigned int set_count = 0;
     for (unsigned int i = 0; i < inner_remaps.length; i++)
       if (inner_remaps[i].get_count () > 0) set_count++;
diff --git a/src/hb-ot-var-hvar-table.hh b/src/hb-ot-var-hvar-table.hh
index ff2cf34..49f241c 100644
--- a/src/hb-ot-var-hvar-table.hh
+++ b/src/hb-ot-var-hvar-table.hh
@@ -328,7 +328,7 @@
   bool serialize_index_maps (hb_serialize_context_t *c,
 			     const hb_array_t<index_map_subset_plan_t> &im_plans)
   {
-    TRACE_SUBSET (this);
+    TRACE_SERIALIZE (this);
     if (im_plans[index_map_subset_plan_t::ADV_INDEX].is_identity ())
       advMap = 0;
     else if (unlikely (!advMap.serialize (c, this).serialize (c, im_plans[index_map_subset_plan_t::ADV_INDEX])))
@@ -426,7 +426,7 @@
   bool serialize_index_maps (hb_serialize_context_t *c,
 			     const hb_array_t<index_map_subset_plan_t> &im_plans)
   {
-    TRACE_SUBSET (this);
+    TRACE_SERIALIZE (this);
     if (unlikely (!HVARVVAR::serialize_index_maps (c, im_plans)))
       return_trace (false);
     if (!im_plans[index_map_subset_plan_t::VORG_INDEX].get_map_count ())