Upgrade to Scala 2.9.1.

Interestingly, the version in Maven is 2.9.1, but SBT outputs file to the 2.9.1.final
directory inside target.

A couple of small changes in SparkIMain were also required.

All tests pass and ./spark-shell launches successfully.

1 files changed, 2 insertions, 2 deletions

diff --git a/repl/src/main/scala/spark/repl/SparkIMain.scala b/repl/src/main/scala/spark/repl/SparkIMain.scala
index fb4b9f9b40..43b6a6c950 100644
--- a/repl/src/main/scala/spark/repl/SparkIMain.scala
+++ b/repl/src/main/scala/spark/repl/SparkIMain.scala
@@ -356,7 +356,7 @@ class SparkIMain(val settings: Settings, protected val out: PrintWriter) extends
   private def mostRecentlyHandledTree: Option[Tree] = {
     prevRequests.reverse foreach { req =>
       req.handlers.reverse foreach {
-        case x: MemberDefHandler if x.definesValue && !isInternalVarName(x.name)  => return Some(x.member)
+        case x: MemberDefHandler if x.definesValue && !isInternalVarName(x.name.toString)  => return Some(x.member)
         case _ => ()
       }
     }
@@ -1023,7 +1023,7 @@ class SparkIMain(val settings: Settings, protected val out: PrintWriter) extends
   protected def onlyTerms(xs: List[Name]) = xs collect { case x: TermName => x }
   protected def onlyTypes(xs: List[Name]) = xs collect { case x: TypeName => x }
     
-  def definedTerms   = onlyTerms(allDefinedNames) filterNot isInternalVarName
+  def definedTerms   = onlyTerms(allDefinedNames) filterNot (x => isInternalVarName(x.toString))
   def definedTypes   = onlyTypes(allDefinedNames)
   def definedSymbols = prevRequests.toSet flatMap ((x: Request) => x.definedSymbols.values)