Fixed bug in Sorted "to" not using the ordering. Closes SI-4930, no review.

git-svn-id: http://lampsvn.epfl.ch/svn-repos/scala/scala/trunk@25574 5e8d7ff9-d8ef-0310-90f0-a4852d11357a

src/library/scala/collection/generic/Sorted.scala

@@ -71,11 +71,10 @@ trait Sorted[K, +This <: Sorted[K, This]] {
    *  @param to The upper-bound (inclusive) of the ranged projection.
    */
   def to(to: K): This = {
-    // tough!
     val i = keySet.from(to).iterator
     if (i.isEmpty) return repr
     val next = i.next
-    if (next == to)
+    if (compare(next, to) == 0)
       if (i.isEmpty) repr
       else until(i.next)
     else

test/files/run/t4930.check

@@ -0,0 +1,2 @@
+List(1)
+List(1)

test/files/run/t4930.scala

@@ -0,0 +1,11 @@
+import collection.immutable.SortedMap
+
+object Test {
+  implicit val ord: Ordering[Array[Byte]] = Ordering.by((_: Array[Byte]).toIterable)
+
+  def main(args: Array[String]): Unit = {
+    val m = SortedMap(Array[Byte](1) -> 0)
+    println(m.to(Array[Byte](1)) flatMap (_._1.mkString))
+    println(m.from(Array[Byte](1)) flatMap (_._1.mkString))
+  }
+}