[heap] ObjectStats: Record fixed arrays in BytecodeArray

BUG=chromium:631094
R=hpayer@chromium.org

Review-Url: https://codereview.chromium.org/2190093002
Cr-Commit-Position: refs/heads/master@{#38149}

src/heap/object-stats.cc

@@ -170,6 +170,9 @@ void ObjectStatsCollector::CollectStatistics(HeapObject* obj) {
 
   // Record specific sub types where possible.
   if (obj->IsMap()) RecordMapDetails(Map::cast(obj));
+  if (obj->IsBytecodeArray()) {
+    RecordBytecodeArrayDetails(BytecodeArray::cast(obj));
+  }
   if (obj->IsCode()) RecordCodeDetails(Code::cast(obj));
   if (obj->IsSharedFunctionInfo()) {
     RecordSharedFunctionInfoDetails(SharedFunctionInfo::cast(obj));
@@ -384,6 +387,13 @@ void ObjectStatsCollector::RecordMapDetails(Map* map_obj) {
   }
 }
 
+void ObjectStatsCollector::RecordBytecodeArrayDetails(BytecodeArray* obj) {
+  RecordFixedArrayHelper(obj, obj->constant_pool(),
+                         BYTECODE_ARRAY_CONSTANT_POOL_SUB_TYPE, 0);
+  RecordFixedArrayHelper(obj, obj->handler_table(),
+                         BYTECODE_ARRAY_HANDLER_TABLE_SUB_TYPE, 0);
+}
+
 void ObjectStatsCollector::RecordCodeDetails(Code* code) {
   stats_->RecordCodeSubTypeStats(code->kind(), code->GetAge(), code->Size());
   RecordFixedArrayHelper(code, code->deoptimization_data(),

src/heap/object-stats.h

@@ -127,6 +127,7 @@ class ObjectStatsCollector {
   void CollectStatistics(HeapObject* obj);
 
  private:
+  void RecordBytecodeArrayDetails(BytecodeArray* obj);
   void RecordCodeDetails(Code* code);
   void RecordFixedArrayDetails(FixedArray* array);
   void RecordJSCollectionDetails(JSObject* obj);

src/objects.h

@@ -768,6 +768,8 @@ STATIC_ASSERT(FOREIGN_TYPE == Internals::kForeignType);
 std::ostream& operator<<(std::ostream& os, InstanceType instance_type);
 
 #define FIXED_ARRAY_SUB_INSTANCE_TYPE_LIST(V)    \
+  V(BYTECODE_ARRAY_CONSTANT_POOL_SUB_TYPE)       \
+  V(BYTECODE_ARRAY_HANDLER_TABLE_SUB_TYPE)       \
   V(CODE_STUBS_TABLE_SUB_TYPE)                   \
   V(CONTEXT_SUB_TYPE)                            \
   V(COPY_ON_WRITE_SUB_TYPE)                      \