Moving changes, please ignore

core/src/main/scala/org/apache/spark/storage/memory/MemoryStore.scala

@@ -92,7 +92,7 @@ private[spark] class MemoryStore(
   private class OurBlockIdAndSizeType(
       private var blockId: BlockId,
       private var size: Long) extends Ordering[OurBlockIdAndSizeType] {
-    def compare(other: OurBlockIdAndSizeType) = this.size.compare(other.size)
+    def compare(other: OurBlockIdAndSizeType): Int = this.size.compare(other.size)
   }
 
   private val entries = new LinkedHashMap[BlockId, MemoryEntry[_]](32, 0.75f, true)