Modularized the repl.

Following in the footsteps of scaladoc and interactive.
The interpreter sources move into src/repl, and are given
a separate build target. As with the others, at present
they are still packaged into scala-compiler.jar.

A summary of changes:

 - repl requires use of ReplGlobal (this was already implied)
 - macro code's repl-specific classloader hack pulled into overridable
   method and overridden in ReplGlobal
 - removed -Ygen-javap option to eliminate backend's dependency on javap
 - removed -Yrepl-debug option (can still be enabled with -Dscala.repl.debug)
 - pushed javap code into src/repl so javax.tools dependency can bee
   weakened to the repl only
 - removed some "show pickled" related code which hasn't worked right
   in a while and isn't the right way to do it anymore anyway. Will
   return to fix showPickled and provide it with some tests.

1 files changed, 27 insertions, 0 deletions

diff --git a/src/repl/scala/tools/nsc/interpreter/ReplProps.scala b/src/repl/scala/tools/nsc/interpreter/ReplProps.scala
new file mode 100644
index 0000000000..2364918494
--- /dev/null
+++ b/src/repl/scala/tools/nsc/interpreter/ReplProps.scala
@@ -0,0 +1,27 @@
+/* NSC -- new Scala compiler
+ * Copyright 2005-2013 LAMP/EPFL
+ * @author Paul Phillips
+ */
+
+package scala.tools.nsc
+package interpreter
+
+import scala.sys._
+import Prop._
+
+class ReplProps {
+  private def bool(name: String) = BooleanProp.keyExists(name)
+  private def int(name: String) = IntProp(name)
+
+  val info  = bool("scala.repl.info")
+  val debug = bool("scala.repl.debug")
+  val trace = bool("scala.repl.trace")
+  val power = bool("scala.repl.power")
+
+  val replAutorunCode = Prop[JFile]("scala.repl.autoruncode")
+  val powerInitCode   = Prop[JFile]("scala.repl.power.initcode")
+  val powerBanner     = Prop[JFile]("scala.repl.power.banner")
+
+  val vids = bool("scala.repl.vids")
+  val maxPrintString = int("scala.repl.maxprintstring")
+}