Fixed MissingRequirementError extractor (the re...

Fixed MissingRequirementError extractor (the return type of unapply
method went from Option[String] to Serializable during r25612). Review
by moors.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/compiler/scala/reflect/internal/MissingRequirementError.scala b/src/compiler/scala/reflect/internal/MissingRequirementError.scala
index f6be9fa8c6..fbbbcc1928 100644
--- a/src/compiler/scala/reflect/internal/MissingRequirementError.scala
+++ b/src/compiler/scala/reflect/internal/MissingRequirementError.scala
@@ -15,8 +15,8 @@ object MissingRequirementError {
   private val suffix = " not found."
   def signal(msg: String): Nothing = throw new MissingRequirementError(msg)
   def notFound(req: String): Nothing = signal(req + suffix)
-  def unapply(x: Throwable) = x match {
-    case x: MissingRequirementError => x.req
+  def unapply(x: Throwable): Option[String] = x match {
+    case x: MissingRequirementError => Some(x.req)
     case _ => None
   }
 }