Revert some unwanted changes, preparing for PR

Author: Antoine Brunner

bench/src/main/scala/Benchmarks.scala

@@ -30,6 +30,7 @@ object Bench {
     val iterations = if (intArgs.length > 1) intArgs(1).toInt else 20
     val forks = if (intArgs.length > 2) intArgs(2).toInt else 1
 
+
     import File.{ separator => sep }
 
     val args2 = args1.map { arg =>

library/src/scala/runtime/DynamicTuple.scala

@@ -257,12 +257,9 @@ object DynamicTuple {
     ).asInstanceOf[Zip[This, T2]]
   }
 
-  def dynamicMap[This <: Tuple, F[_]](self: This, f: [t] => t => F[t]): Map[This, F] = (self: Any) match {
-    case self: Unit => ().asInstanceOf[Map[This, F]]
-    case _ =>
-      Tuple.fromArray(self.asInstanceOf[Product].productIterator.map(f(_)).toArray) // TODO use toIArray of Object to avoid double/triple array copy
-        .asInstanceOf[Map[This, F]]
-  }
+  def dynamicMap[This <: Tuple, F[_]](self: This, f: [t] => t => F[t]): Map[This, F] =
+    Tuple.fromArray(self.asInstanceOf[Product].productIterator.map(f(_)).toArray) // TODO use toIArray of Object to avoid double/triple array copy
+      .asInstanceOf[Map[This, F]]
 
   def consIterator(head: Any, tail: Tuple): Iterator[Any] =
     Iterator.single(head) ++ tail.asInstanceOf[Product].productIterator