Rename package and add license on top of the file, remove files from

rat-excludes and removed `-Yrepl-sync` per reviewer’s request.

Author: dragos

.rat-excludes

@@ -45,15 +45,6 @@ vis.min.css
 cloudpickle.py
 heapq3.py
 join.py
-SparkExprTyper.scala
-SparkILoop.scala
-SparkILoopInit.scala
-SparkIMain.scala
-SparkImports.scala
-SparkJLineCompletion.scala
-SparkJLineReader.scala
-SparkMemberHandlers.scala
-SparkReplReporter.scala
 sbt
 sbt-launch-lib.bash
 plugins.sbt

repl/scala-2.11/src/main/scala/org/apache/spark/repl/Main.scala

@@ -20,7 +20,6 @@ package org.apache.spark.repl
 import java.io.File
 
 import scala.tools.nsc.Settings
-import scala.tools.nsc.interpreter.SparkILoop
 
 import org.apache.spark.util.Utils
 import org.apache.spark._
@@ -35,7 +34,6 @@ object Main extends Logging {
   val s = new Settings()
   s.processArguments(List("-Yrepl-class-based",
     "-Yrepl-outdir", s"${outputDir.getAbsolutePath}",
-    "-Yrepl-sync",
     "-classpath", getAddedJars.mkString(File.pathSeparator)), true)
   val classServer = new HttpServer(conf, outputDir, new SecurityManager(conf))
   var sparkContext: SparkContext = _

repl/scala-2.11/src/main/scala/org/apache/spark/repl/SparkILoop.scala

@@ -1,19 +1,33 @@
-/* NSC -- new Scala compiler
- * Copyright 2005-2013 LAMP/EPFL
- * @author Alexander Spoon
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
-package scala
-package tools.nsc
-package interpreter
+package org.apache.spark.repl
 
 import java.io.{ BufferedReader, FileReader }
 
 import Predef.{ println => _, _ }
 import scala.util.Properties.{ jdkHome, javaVersion, versionString, javaVmName }
+
+import scala.tools.nsc.interpreter.{ JPrintWriter, ILoop }
+import scala.tools.nsc.Settings
 import scala.tools.nsc.util.stringFromStream
 
-/** A Spark-specific interactive shell.
+/**
+ *  A Spark-specific interactive shell.
  */
 class SparkILoop(in0: Option[BufferedReader], out: JPrintWriter)
     extends ILoop(in0, out) {

repl/scala-2.11/src/test/scala/org/apache/spark/repl/ReplSuite.scala

@@ -22,7 +22,6 @@ import java.net.URLClassLoader
 
 import scala.collection.mutable.ArrayBuffer
 import scala.concurrent.duration._
-import scala.tools.nsc.interpreter.SparkILoop
 
 import org.apache.commons.lang3.StringEscapeUtils
 import org.apache.spark.{ SparkContext, SparkFunSuite }