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

src/objects.h

Index: src/objects.h
diff --git a/src/objects.h b/src/objects.h
index 5dc18607b2b9431a96dd50693f00d35837a27af3..331802a7de689d3e3d8f035558bafaf3c15197ab 100644
--- a/src/objects.h
+++ b/src/objects.h
@@ -18,9 +18,10 @@
 #include "src/field-index.h"
 #include "src/flags.h"
 #include "src/list.h"
+#include "src/messages.h"
 #include "src/property-details.h"
-#include "src/unicode.h"
 #include "src/unicode-decoder.h"
+#include "src/unicode.h"
 #include "src/zone.h"
 
 #if V8_TARGET_ARCH_ARM
@@ -1177,6 +1178,11 @@ class Object {
   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,
+      MessageTemplate::Template error_index);
+
   // ES6 section 7.3.9 GetMethod
   MUST_USE_RESULT static MaybeHandle<Object> GetMethod(
       Handle<JSReceiver> receiver, Handle<Name> name);