SPARK-1325. The maven build error for Spark Tools

This is just a slight variation on https://github.com/apache/spark/pull/234 and alternative suggestion for SPARK-1325. `scala-actors` is not necessary. `SparkBuild.scala` should be updated to reflect the direct dependency on `scala-reflect` and `scala-compiler`. And the `repl` build, which has the same dependencies, should also be consistent between Maven / SBT.

Author: Sean Owen <sowen@cloudera.com>
Author: witgo <witgo@qq.com>

Closes #240 from srowen/SPARK-1325 and squashes the following commits:

25bd7db [Sean Owen] Add necessary dependencies scala-reflect and scala-compiler to tools. Update repl dependencies, which are similar, to be consistent between Maven / SBT in this regard too.

pom.xml

@@ -419,6 +419,11 @@
         <artifactId>scala-compiler</artifactId>
         <version>${scala.version}</version>
       </dependency>
+      <dependency>
+        <groupId>org.scala-lang</groupId>
+        <artifactId>scala-reflect</artifactId>
+        <version>${scala.version}</version>
+      </dependency>
       <dependency>
         <groupId>org.scala-lang</groupId>
         <artifactId>jline</artifactId>

project/SparkBuild.scala

@@ -356,7 +356,9 @@ object SparkBuild extends Build {
   ) ++ assemblySettings ++ extraAssemblySettings
 
   def toolsSettings = sharedSettings ++ Seq(
-    name := "spark-tools"
+    name := "spark-tools",
+    libraryDependencies <+= scalaVersion(v => "org.scala-lang"  % "scala-compiler" % v ),
+    libraryDependencies <+= scalaVersion(v => "org.scala-lang"  % "scala-reflect"  % v )
   ) ++ assemblySettings ++ extraAssemblySettings
 
   def graphxSettings = sharedSettings ++ Seq(

repl/pom.xml

@@ -77,6 +77,11 @@
       <artifactId>scala-compiler</artifactId>
       <version>${scala.version}</version>
     </dependency>
+    <dependency>
+      <groupId>org.scala-lang</groupId>
+      <artifactId>scala-reflect</artifactId>
+      <version>${scala.version}</version>
+    </dependency>
     <dependency>
       <groupId>org.scala-lang</groupId>
       <artifactId>jline</artifactId>

tools/pom.xml

@@ -55,6 +55,14 @@
       <artifactId>spark-streaming_${scala.binary.version}</artifactId>
       <version>${project.version}</version>
     </dependency>
+    <dependency>
+      <groupId>org.scala-lang</groupId>
+      <artifactId>scala-reflect</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>org.scala-lang</groupId>
+      <artifactId>scala-compiler</artifactId>
+    </dependency>
     <dependency>
       <groupId>org.scalatest</groupId>
       <artifactId>scalatest_${scala.binary.version}</artifactId>