Add back deprecated things

Author: Andrew Or

core/src/main/scala/org/apache/spark/executor/TaskMetrics.scala

@@ -149,6 +149,11 @@ class TaskMetrics extends Serializable {
    */
   def outputMetrics: Option[OutputMetrics] = _outputMetrics
 
+  @deprecated("setting OutputMetrics is for internal use only", "2.0.0")
+  def outputMetrics_=(om: Option[OutputMetrics]): Unit = {
+    _outputMetrics = om
+  }
+
   /**
    * Get or create a new [[OutputMetrics]] associated with this task.
    */
@@ -225,6 +230,11 @@ class TaskMetrics extends Serializable {
    */
   def shuffleWriteMetrics: Option[ShuffleWriteMetrics] = _shuffleWriteMetrics
 
+  @deprecated("setting ShuffleWriteMetrics is for internal use only", "2.0.0")
+  def shuffleWriteMetrics_=(swm: Option[ShuffleWriteMetrics]): Unit = {
+    _shuffleWriteMetrics = swm
+  }
+
   /**
    * Get or create a new [[ShuffleWriteMetrics]] associated with this task.
    */
@@ -244,6 +254,11 @@ class TaskMetrics extends Serializable {
    */
   def updatedBlockStatuses: Seq[(BlockId, BlockStatus)] = _updatedBlockStatuses
 
+  @deprecated("setting updated blocks is for internal use only", "2.0.0")
+  def updatedBlocks_=(ub: Option[Seq[(BlockId, BlockStatus)]]): Unit = {
+    _updatedBlockStatuses = ub.getOrElse(Seq.empty[(BlockId, BlockStatus)])
+  }
+
   private[spark] def incUpdatedBlockStatuses(v: Seq[(BlockId, BlockStatus)]): Unit = {
     _updatedBlockStatuses ++= v
   }