Add is_same_v and is_convertible_v to detail namespace

Author: aobolensk

sycl/include/CL/sycl/detail/stl_type_traits.hpp

@@ -78,6 +78,12 @@ struct is_output_iterator<T, output_iterator_requirements<T>> {
   static constexpr bool value = true;
 };
 
+template <typename T, typename U>
+inline constexpr bool is_same_v = std::is_same<T, U>::value;
+
+template <typename T, typename U>
+inline constexpr bool is_convertible_v = std::is_convertible<T, U>::value;
+
 } // namespace detail
 } // namespace sycl
 } // __SYCL_INLINE_NAMESPACE(cl)

sycl/include/CL/sycl/handler.hpp

@@ -918,13 +918,13 @@ class __SYCL_EXPORT handler {
 
   template <int Dims, typename LambdaArgType> struct TransformUserItemType {
     using type = typename std::conditional_t<
-        std::is_same<id<Dims>, LambdaArgType>::value, LambdaArgType,
+        detail::is_same_v<id<Dims>, LambdaArgType>, LambdaArgType,
         typename std::conditional_t<
-            std::is_convertible<nd_item<Dims>, LambdaArgType>::value,
+            detail::is_convertible_v<nd_item<Dims>, LambdaArgType>,
             nd_item<Dims>,
             typename std::conditional_t<
-                std::is_convertible<item<Dims>, LambdaArgType>::value,
-                item<Dims>, LambdaArgType>>>;
+                detail::is_convertible_v<item<Dims>, LambdaArgType>, item<Dims>,
+                LambdaArgType>>>;
   };
 
   /// Defines and invokes a SYCL kernel function for the specified range.