Add over allocated memory of fixed array sub types to fixed array type.

src/heap/object-stats.h

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_HEAP_OBJECT_STATS_H_
 #define V8_HEAP_OBJECT_STATS_H_
 
 #include <set>
 
 #include "src/base/ieee754.h"
@@ skipping 57 matching lines @@
     DCHECK(array_sub_type <= LAST_FIXED_ARRAY_SUB_TYPE);
     object_counts_[FIRST_FIXED_ARRAY_SUB_TYPE + array_sub_type]++;
     object_sizes_[FIRST_FIXED_ARRAY_SUB_TYPE + array_sub_type] += size;
     size_histogram_[FIRST_FIXED_ARRAY_SUB_TYPE + array_sub_type]
                    [HistogramIndexFromSize(size)]++;
     if (over_allocated > 0) {
       over_allocated_[FIRST_FIXED_ARRAY_SUB_TYPE + array_sub_type] +=
           over_allocated;
       over_allocated_histogram_[FIRST_FIXED_ARRAY_SUB_TYPE + array_sub_type]
                                [HistogramIndexFromSize(over_allocated)]++;
+      over_allocated_[InstanceType::FIXED_ARRAY_TYPE] += over_allocated;
+      over_allocated_histogram_[InstanceType::FIXED_ARRAY_TYPE]
+                               [HistogramIndexFromSize(over_allocated)]++;
     }
     return true;
   }
 
   size_t object_count_last_gc(size_t index) {
     return object_counts_last_time_[index];
   }
 
   size_t object_size_last_gc(size_t index) {
     return object_sizes_last_time_[index];
@@ skipping 63 matching lines @@
   Heap* heap_;
   ObjectStats* stats_;
 
   friend class ObjectStatsCollector::CompilationCacheTableVisitor;
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_HEAP_OBJECT_STATS_H_