AbstractPartialFunction.

Contributed by Todd Vierling with minor mods by extempore. This is an
obvious extension of AbstractFunctionN which I had some issue making
work at the time. Sounds kind of pitiful given that the compiler patch
is about two lines, but let's all agree to believe it was a different
world then.

This example program is impacted as follows:

    class A {
      def f: PartialFunction[Any, Int] = { case x: String => 1 }
      def g: PartialFunction[Any, Int] = f orElse { case x: List[_] => 2 }
      def h: PartialFunction[Any, Int] = g orElse { case x: Set[_] => 3 }
    }

Before: 34943 bytes of bytecode
 After:  4217 bytes of bytecode

A mere 88% reduction in size. "'Tis but a trifle!" Closes SI-5096,
SI-5097.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/compiler/scala/tools/cmd/FromString.scala b/src/compiler/scala/tools/cmd/FromString.scala
index 3792c26c34..992530c767 100644
--- a/src/compiler/scala/tools/cmd/FromString.scala
+++ b/src/compiler/scala/tools/cmd/FromString.scala
@@ -14,7 +14,7 @@ import scala.reflect.OptManifest
  *  example instances are in the companion object, but in general
  *  either IntFromString will suffice or you'll want custom transformers.
  */
-abstract class FromString[+T](implicit m: OptManifest[T]) extends PartialFunction[String, T] {
+abstract class FromString[+T](implicit m: OptManifest[T]) extends scala.runtime.AbstractPartialFunction[String, T] {
   def apply(s: String): T
   def isDefinedAt(s: String): Boolean = true
   def zero: T = apply("")