Fix parallel slice RDD

Author: srowen

core/src/main/scala/org/apache/spark/rdd/ParallelCollectionRDD.scala

@@ -133,9 +133,8 @@ private object ParallelCollectionRDD {
           // If the range is inclusive, use inclusive range for the last slice
           if (r.isInclusive && index == numSlices - 1) {
             new Range.Inclusive(r.start + start * r.step, r.end, r.step)
-          }
-          else {
-            new Range.Inclusive(r.start + start * r.step, r.start + end * r.step - 1, r.step)
+          } else {
+            new Range.Inclusive(r.start + start * r.step, r.start + (end - 1) * r.step, r.step)
           }
         }.toSeq.asInstanceOf[Seq[Seq[T]]]
       case nr: NumericRange[T] =>

core/src/test/scala/org/apache/spark/rdd/ParallelCollectionSplitSuite.scala

@@ -140,7 +140,7 @@ class ParallelCollectionSplitSuite extends SparkFunSuite with Checkers {
       assert(slices(i).isInstanceOf[Range])
       val range = slices(i).asInstanceOf[Range]
       assert(range.start === i * (N / 40), "slice " + i + " start")
-      assert(range.end   === (i + 1) * (N / 40), "slice " + i + " end")
+      assert(range.last  === (i + 1) * (N / 40) - 1, "slice " + i + " end")
       assert(range.step  === 1, "slice " + i + " step")
     }
   }