[heap] Rework and improve object stats tracing

src/objects.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_OBJECTS_H_
 #define V8_OBJECTS_H_
 
 #include <iosfwd>
 
 #include "src/assert-scope.h"
@@ skipping 759 matching lines @@
 
 STATIC_ASSERT(JS_OBJECT_TYPE == Internals::kJSObjectType);
 STATIC_ASSERT(JS_API_OBJECT_TYPE == Internals::kJSApiObjectType);
 STATIC_ASSERT(FIRST_NONSTRING_TYPE == Internals::kFirstNonstringType);
 STATIC_ASSERT(ODDBALL_TYPE == Internals::kOddballType);
 STATIC_ASSERT(FOREIGN_TYPE == Internals::kForeignType);
 
 
 std::ostream& operator<<(std::ostream& os, InstanceType instance_type);
 
-
 #define FIXED_ARRAY_SUB_INSTANCE_TYPE_LIST(V) \
+  V(CONTEXT_SUB_TYPE)                         \
+  V(COPY_ON_WRITE_SUB_TYPE)                   \
+  V(DEOPTIMIZATION_DATA_SUB_TYPE)             \
+  V(DESCRIPTOR_ARRAY_SUB_TYPE)                \
+  V(ENUM_CACHE_SUB_TYPE)                      \
+  V(ENUM_INDICES_CACHE_SUB_TYPE)              \
+  V(DICTIONARY_ELEMENTS_SUB_TYPE)             \
+  V(DICTIONARY_PROPERTIES_SUB_TYPE)           \
   V(FAST_ELEMENTS_SUB_TYPE)                   \
-  V(DICTIONARY_ELEMENTS_SUB_TYPE)             \
   V(FAST_PROPERTIES_SUB_TYPE)                 \
-  V(DICTIONARY_PROPERTIES_SUB_TYPE)           \
+  V(LITERALS_ARRAY_SUB_TYPE)                  \
   V(MAP_CODE_CACHE_SUB_TYPE)                  \
+  V(OBJECT_TO_CODE_SUB_TYPE)                  \
+  V(RELOC_INFO_SUB_TYPE)                      \
   V(SCOPE_INFO_SUB_TYPE)                      \
+  V(SOURCE_POS_SUB_TYPE)                      \
   V(STRING_TABLE_SUB_TYPE)                    \
-  V(DESCRIPTOR_ARRAY_SUB_TYPE)
+  V(TYPE_FEEDBACK_VECTOR_SUB_TYPE)            \
+  V(TYPE_FEEDBACK_METADATA_SUB_TYPE)          \
+  V(WEAK_COLLECTION_SUB_TYPE)
 
 enum FixedArraySubInstanceType {
 #define DEFINE_FIXED_ARRAY_SUB_INSTANCE_TYPE(name) name,
   FIXED_ARRAY_SUB_INSTANCE_TYPE_LIST(DEFINE_FIXED_ARRAY_SUB_INSTANCE_TYPE)
 #undef DEFINE_FIXED_ARRAY_SUB_INSTANCE_TYPE
-      LAST_FIXED_ARRAY_SUB_TYPE = DESCRIPTOR_ARRAY_SUB_TYPE
+      LAST_FIXED_ARRAY_SUB_TYPE = WEAK_COLLECTION_SUB_TYPE
 };
 
 
 // TODO(bmeurer): Remove this in favor of the ComparisonResult below.
 enum CompareResult {
   LESS      = -1,
   EQUAL     =  0,
   GREATER   =  1,
 
   NOT_EQUAL = GREATER
@@ skipping 9243 matching lines @@
   // |HasMore| returns true.
   inline Object* CurrentValue();
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(JSMapIterator);
 };
 
 
 // Base class for both JSWeakMap and JSWeakSet
 class JSWeakCollection: public JSObject {
  public:
+  DECLARE_CAST(JSWeakCollection)
+
   // [table]: the backing hash table mapping keys to values.
   DECL_ACCESSORS(table, Object)
 
   // [next]: linked list of encountered weak maps during GC.
   DECL_ACCESSORS(next, Object)
 
   static void Initialize(Handle<JSWeakCollection> collection, Isolate* isolate);
   static void Set(Handle<JSWeakCollection> collection, Handle<Object> key,
                   Handle<Object> value, int32_t hash);
   static bool Delete(Handle<JSWeakCollection> collection, Handle<Object> key,
@@ skipping 910 matching lines @@
     }
     return value;
   }
 };
 
 
 }  // NOLINT, false-positive due to second-order macros.
 }  // NOLINT, false-positive due to second-order macros.
 
 #endif  // V8_OBJECTS_H_