Revert "Stream handling simplified to avoid dictionary lookups in favor of array lookups with known indexes."

This reverts commit a84445ef2a.

PerfectNumbers.Core/Gpu/Kernels/PrimeTesterKernels.cs

@@ -83,10 +83,20 @@ internal static class PrimeTesterKernels
         ArrayView<int> resultFlag,
         ulong n,
         ulong maxDivisorSquare,
-		ArrayView1D<ulong, Stride1D.Dense> divisors,
-		ArrayView1D<ulong, Stride1D.Dense> divisorSquares)
+        HeuristicGpuDivisorTableKind tableKind,
+        HeuristicGpuDivisorTables tables)
     {
+        byte nMod10 = (byte)(n % 10UL);
+        ArrayView1D<ulong, Stride1D.Dense> divisors = tables.SelectDivisors(tableKind, nMod10);
+        ArrayView1D<ulong, Stride1D.Dense> divisorSquares = tables.SelectDivisorSquares(tableKind, nMod10);
+
+        int divisorLength = (int)divisorSquares.Length;
         int threadIndex = index;
+        if (threadIndex >= divisorLength)
+        {
+            return;
+        }
+
         ulong divisorSquare = divisorSquares[threadIndex];
         if (divisorSquare > maxDivisorSquare)
         {