Track counts/sizes of CODE sub types with --track-gc-object-stats

src/heap.cc

Index: src/heap.cc
diff --git a/src/heap.cc b/src/heap.cc
index 309d0adf02ae1310cf654b9b261ba7632f1f336f..f63d00fc231f7d4a212ba09c77951f803ec41e13 100644
--- a/src/heap.cc
+++ b/src/heap.cc
@@ -7223,6 +7223,18 @@ void Heap::CheckpointObjectStats() {
   counters->size_of_##name()->Decrement(object_sizes_last_time_[name]);
   INSTANCE_TYPE_LIST(ADJUST_LAST_TIME_OBJECT_COUNT)
 #undef ADJUST_LAST_TIME_OBJECT_COUNT
+#define ADJUST_LAST_TIME_OBJECT_COUNT(name) \
+  counters->count_of_CODE_TYPE_##name()->Increment( \
+    object_counts_[FIRST_CODE_KIND_SUB_TYPE + Code::name]); \
+  counters->count_of_CODE_TYPE_##name()->Decrement( \
+    object_counts_last_time_[FIRST_CODE_KIND_SUB_TYPE + Code::name]); \
+  counters->size_of_CODE_TYPE_##name()->Increment( \
+    object_sizes_[FIRST_CODE_KIND_SUB_TYPE + Code::name]); \
+  counters->size_of_CODE_TYPE_##name()->Decrement( \
+    object_sizes_last_time_[FIRST_CODE_KIND_SUB_TYPE + Code::name]);
+  CODE_KIND_LIST(ADJUST_LAST_TIME_OBJECT_COUNT)
+#undef ADJUST_LAST_TIME_OBJECT_COUNT
+
   memcpy(object_counts_last_time_, object_counts_,
          sizeof(object_counts_));
   memcpy(object_sizes_last_time_, object_sizes_,