Specialization action.

The crickets at http://www.scala-lang.org/node/11901 were in
unanimous agreement that I should proceed as suggested.

 - No arguments to @specialize gets you 10/10, not 9/10
 - Fixed bugs in AnyRef specialization revealed by trying to use it
 - Specialized Function1 on AnyRef.
 - Changed AnyRef specialization to use OBJECT_TAG, not TVAR_TAG.
 - Deprecated SpecializableCompanion in favor of Specializable,
   which has the virtue of being public so it can be referenced
   from outside the library.
 - Cooked up mechanism to group specializable types so we don't
   have to repeat ourselves quite so much, and create a few groups
   for illustrative purposes.  I'm not too serious about those names
   but I used up all my name-thinking-up brain for the day.
 - Updated genprod and friends since I had to regenerate Function1.
 - Put tests for a bunch of remaining specialization bugs in pending.

Closes SI-4740, SI-4770, SI-5267.

1 files changed, 6 insertions, 8 deletions

diff --git a/src/library/scala/Function1.scala b/src/library/scala/Function1.scala
index 7517e6604b..06936e54cb 100644
--- a/src/library/scala/Function1.scala
+++ b/src/library/scala/Function1.scala
@@ -11,12 +11,12 @@ package scala
 
 
 /** A function of 1 parameter.
- *
+ *  
  *  In the following example, the definition of succ is a
  *  shorthand for the anonymous class definition anonfun1:
  *
  *  {{{
- *  object Main extends Application {
+ *  object Main extends App { 
  *    val succ = (x: Int) => x + 1
  *    val anonfun1 = new Function1[Int, Int] {
  *      def apply(x: Int): Int = x + 1
@@ -29,17 +29,15 @@ package scala
  *  be suggested by the existence of [[scala.PartialFunction]]. The only
  *  distinction between `Function1` and `PartialFunction` is that the
  *  latter can specify inputs which it will not handle.
- *
+ 
  */
 @annotation.implicitNotFound(msg = "No implicit view available from ${T1} => ${R}.")
-trait Function1[@specialized(scala.Int, scala.Long, scala.Float, scala.Double) -T1, @specialized(scala.Unit, scala.Boolean, scala.Int, scala.Float, scala.Long, scala.Double) +R] extends AnyRef { self =>
-  /** Apply the body of this function to the argument. It may throw an
-   *  exception.
-   *
+trait Function1[@specialized(scala.Int, scala.Long, scala.Float, scala.Double, scala.AnyRef) -T1, @specialized(scala.Unit, scala.Boolean, scala.Int, scala.Float, scala.Long, scala.Double, scala.AnyRef) +R] extends AnyRef { self =>
+  /** Apply the body of this function to the argument.
    *  @return   the result of function application.
    */
   def apply(v1: T1): R
-
+  
   /** Composes two instances of Function1 in a new Function1, with this function applied last.
    *
    *  @tparam   A   the type to which function `g` can be applied