Amend DataView, ArrayBuffer, and TypedArray methods to use ToIndex.

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 1159 matching lines @@
                                                       Handle<Object> input);
 
   // ES6 section 7.1.14 ToPropertyKey
   MUST_USE_RESULT static MaybeHandle<Object> ToPropertyKey(
       Isolate* isolate, Handle<Object> value);
 
   // ES6 section 7.1.15 ToLength
   MUST_USE_RESULT static MaybeHandle<Object> ToLength(Isolate* isolate,
                                                       Handle<Object> input);
 
+  // ES6 section 7.1.17 ToIndex
+  MUST_USE_RESULT static MaybeHandle<Object> ToIndex(Isolate* isolate,
+                                                     Handle<Object> input);
+
   // ES6 section 7.3.9 GetMethod
   MUST_USE_RESULT static MaybeHandle<Object> GetMethod(
       Handle<JSReceiver> receiver, Handle<Name> name);
 
   // ES6 section 7.3.17 CreateListFromArrayLike
   MUST_USE_RESULT static MaybeHandle<FixedArray> CreateListFromArrayLike(
       Isolate* isolate, Handle<Object> object, ElementTypes element_types);
 
   // Get length property and apply ToLength.
   MUST_USE_RESULT static MaybeHandle<Object> GetLengthFromArrayLike(
@@ skipping 9732 matching lines @@
     }
     return value;
   }
 };
 
 
 }  // NOLINT, false-positive due to second-order macros.
 }  // NOLINT, false-positive due to second-order macros.
 
 #endif  // V8_OBJECTS_H_