Refine object stats for FixedArrays.

src/v8-counters.h

Index: src/v8-counters.h
diff --git a/src/v8-counters.h b/src/v8-counters.h
index cb789afe1a960d86e198852177ec8dc232dcf574..e230613a72067089b53240246c94fd46029d6783 100644
--- a/src/v8-counters.h
+++ b/src/v8-counters.h
@@ -323,6 +323,14 @@ class Counters {
   CODE_KIND_LIST(SC)
 #undef SC
 
+#define SC(name) \
+  StatsCounter* count_of_FIXED_ARRAY_##name() \
+    { return &count_of_FIXED_ARRAY_##name##_; } \
+  StatsCounter* size_of_FIXED_ARRAY_##name() \
+    { return &size_of_FIXED_ARRAY_##name##_; }
+  FIXED_ARRAY_SUB_INSTANCE_TYPE_LIST(SC)
+#undef SC
+
   enum Id {
 #define RATE_ID(name, caption) k_##name,
     HISTOGRAM_TIMER_LIST(RATE_ID)
@@ -341,6 +349,10 @@ class Counters {
     kSizeOfCODE_TYPE_##name,
     CODE_KIND_LIST(COUNTER_ID)
 #undef COUNTER_ID
+#define COUNTER_ID(name) kCountOfFIXED_ARRAY__##name, \
+    kSizeOfFIXED_ARRAY__##name,
+    FIXED_ARRAY_SUB_INSTANCE_TYPE_LIST(COUNTER_ID)
+#undef COUNTER_ID
 #define COUNTER_ID(name) k_##name,
     STATE_TAG_LIST(COUNTER_ID)
 #undef COUNTER_ID
@@ -380,6 +392,12 @@ class Counters {
   CODE_KIND_LIST(SC)
 #undef SC
 
+#define SC(name) \
+  StatsCounter size_of_FIXED_ARRAY_##name##_; \
+  StatsCounter count_of_FIXED_ARRAY_##name##_;
+  FIXED_ARRAY_SUB_INSTANCE_TYPE_LIST(SC)
+#undef SC
+
   enum {
 #define COUNTER_ID(name) __##name,
     STATE_TAG_LIST(COUNTER_ID)