[SYCL] Add ALWAYS_INLINE

Signed-off-by: Sergey Kanaev <[email protected]>

Author: Sergey Kanaev

sycl/include/CL/sycl/id.hpp

@@ -96,7 +96,7 @@ template <int dimensions = 1> class id : public detail::array<dimensions> {
    * conversion:
    * int a = id<1>(value); */
 
-  operator EnableIfT<(dimensions == 1), size_t>() const {
+  ALWAYS_INLINE operator EnableIfT<(dimensions == 1), size_t>() const {
     size_t Result = this->common_array[0];
     __SYCL_ASSUME_INT(Result);
     return Result;