Introduce two new symbols for vector based ICs.

src/objects.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_H_
 #define V8_OBJECTS_H_
 
 #include "src/allocation.h"
 #include "src/assert-scope.h"
 #include "src/builtins.h"
@@ skipping 8392 matching lines @@
   static const int kStorage3Offset = kStorage2Offset + kPointerSize;
   static const int kSize = kStorage3Offset + kPointerSize;
 
   // TODO(mvstanton): move these sentinel declarations to shared function info.
   // The object that indicates an uninitialized cache.
   static inline Handle<Object> UninitializedSentinel(Isolate* isolate);
 
   // The object that indicates a megamorphic state.
   static inline Handle<Object> MegamorphicSentinel(Isolate* isolate);
 
+  // The object that indicates a premonomorphic state.
+  static inline Handle<Object> PremonomorphicSentinel(Isolate* isolate);
+
+  // The object that indicates a generic state.
+  static inline Handle<Object> GenericSentinel(Isolate* isolate);
+
   // The object that indicates a monomorphic state of Array with
   // ElementsKind
   static inline Handle<Object> MonomorphicArraySentinel(Isolate* isolate,
       ElementsKind elements_kind);
 
   // A raw version of the uninitialized sentinel that's safe to read during
   // garbage collection (e.g., for patching the cache).
   static inline Object* RawUninitializedSentinel(Heap* heap);
 
  private:
@@ skipping 2728 matching lines @@
     } else {
       value &= ~(1 << bit_position);
     }
     return value;
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_H_