Tighter pattern matching hits the street.

is final and does not conform to the pattern, it will no longer compile.
See all the exciting things you can no longer do:

  "bob".reverse match { case Seq('b', 'o', 'b') => true } // denied!
  "bob".toArray match { case Seq('b', 'o', 'b') => true } // rejected!
  final class Dunk
  def f3(x: Dunk) = x match { case Seq('b', 'o', 'b') => true } // uh-uh!

And so forth.  Review by odersky.

1 files changed, 1 insertions, 1 deletions

diff --git a/test/files/run/withIndex.scala b/test/files/run/withIndex.scala
index 3b9c9e84e5..910b1f1f9e 100644
--- a/test/files/run/withIndex.scala
+++ b/test/files/run/withIndex.scala
@@ -3,7 +3,7 @@ object Test {
     val ary: Array[String] = Array("a", "b", "c")
     val lst: List[String] = List("a", "b", "c")
     val itr: Iterator[String] = lst.iterator
-    val str: Stream[String] = Stream.fromIterator(lst.iterator)
+    val str: Stream[String] = lst.iterator.toStream
 
     Console.println(ary.zipWithIndex.toList)
     Console.println(lst.zipWithIndex.toList)