Vector ICs: Introduce an InstanceType for the type feedback vector.

src/heap/objects-visiting.h

 // Copyright 2012 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_VISITING_H_
 #define V8_OBJECTS_VISITING_H_
 
 #include "src/allocation.h"
 #include "src/layout-descriptor.h"
 
@@ skipping 16 matching lines @@
 #define VISITOR_ID_LIST(V) \
   V(SeqOneByteString)      \
   V(SeqTwoByteString)      \
   V(ShortcutCandidate)     \
   V(ByteArray)             \
   V(FreeSpace)             \
   V(FixedArray)            \
   V(FixedDoubleArray)      \
   V(FixedTypedArray)       \
   V(FixedFloat64Array)     \
+  V(FeedbackVector)        \
   V(NativeContext)         \
   V(AllocationSite)        \
   V(DataObject2)           \
   V(DataObject3)           \
   V(DataObject4)           \
   V(DataObject5)           \
   V(DataObject6)           \
   V(DataObject7)           \
   V(DataObject8)           \
   V(DataObject9)           \
@@ skipping 439 matching lines @@
 // the next element. Given the head of the list, this function removes dead
 // elements from the list and if requested records slots for next-element
 // pointers. The template parameter T is a WeakListVisitor that defines how to
 // access the next-element pointers.
 template <class T>
 Object* VisitWeakList(Heap* heap, Object* list, WeakObjectRetainer* retainer);
 }
 }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_VISITING_H_