Cleaned up and brought up to date the help text...

Cleaned up and brought up to date the help text for -X and -Y options.
Made some enhancements to PhasesSetting, which are documented if you
run scalac -X or -Y. (Try it!) Disabled some dead settings and renamed
others to reflect their current purpose. No review.

1 files changed, 7 insertions, 1 deletions

diff --git a/src/compiler/scala/tools/ant/FastScalac.scala b/src/compiler/scala/tools/ant/FastScalac.scala
index 98e6098f89..f016739a2b 100644
--- a/src/compiler/scala/tools/ant/FastScalac.scala
+++ b/src/compiler/scala/tools/ant/FastScalac.scala
@@ -75,6 +75,12 @@ class FastScalac extends Scalac {
       reset.value = resetCaches
       shutdown.value = shutdownServer
 
+      /** XXX Since fsc is largely unmaintained, the set of options being individually
+       *  assessed here is likely to bear little relationship to the current set of options.
+       *  Most likely this manifests in confusing and very difficult to debug behavior in fsc.
+       *  We should warn or fix.
+       */
+
       val stringSettings =
         List(s.outdir, s.classpath, s.bootclasspath, s.extdirs, s.encoding) flatMap (x => List(x.name, x.value))
 
@@ -85,7 +91,7 @@ class FastScalac extends Scalac {
         List(s.debuginfo, s.target) map (x => "%s:%s".format(x.name, x.value))
 
       val booleanSettings =
-        List(s.debug, s.deprecation, s.nopredefs, s.verbose, reset, shutdown) map (x => if (x.value) List(x.name) else Nil) flatten
+        List(s.debug, s.deprecation, s.verbose, reset, shutdown) map (x => if (x.value) List(x.name) else Nil) flatten
 
       val phaseSetting = {
         val s = settings.log