fixup! Add test for accumulate issue

Author: vchuravy

test/test.jl

@@ -381,7 +381,7 @@ function unittest_testsuite(Backend, backend_str, backend_mod, BackendArrayT; sk
     end
 
     @kernel function unaliased_accumulate_local!(output, input, n)
-        i, j = @index(Global, Cartesian)
+        i, j = @index(Global, NTuple)
 
         # Use local accumulator
         sum_val = zero(eltype(output))