[typedarrays] move %TypedArray%.prototype.copyWithin to C++

src/bootstrapper.cc

Index: src/bootstrapper.cc
diff --git a/src/bootstrapper.cc b/src/bootstrapper.cc
index b95cc1ad79365a6eefcd231204e682a621e9bcc4..fa856bcdb06a1cca0a807f21eaa005ea04f49857 100644
--- a/src/bootstrapper.cc
+++ b/src/bootstrapper.cc
@@ -2483,6 +2483,10 @@ void Genesis::InitializeGlobal(Handle<JSGlobalObject> global_object,
     values->shared()->set_builtin_function_id(kTypedArrayValues);
     JSObject::AddProperty(prototype, factory->iterator_symbol(), values,
                           DONT_ENUM);
+
+    // TODO(caitp): alphasort accessors/methods
+    SimpleInstallFunction(prototype, factory->copyWithin_string(),
+                          Builtins::kTypedArrayPrototypeCopyWithin, 2, false);

[Benedikt Meurer, 2017/02/06 03:54:33]

Just use the SimpleInstallFunction which takes a C string here and avoid adding
the root string (it's only used once).

[caitp, 2017/02/06 14:21:13]

Done.

   }
 
   {  // -- T y p e d A r r a y s