Capture check concurrent.duration

Author: Linyxus

tests/pos-special/stdlib/concurrent/duration/Deadline.scala

@@ -12,6 +12,8 @@
 
 package scala.concurrent.duration
 
+import language.experimental.captureChecking
+
 /**
  * This class stores a deadline, as obtained via `Deadline.now` or the
  * duration DSL:

tests/pos-special/stdlib/concurrent/duration/Duration.scala

@@ -15,6 +15,8 @@ package scala.concurrent.duration
 import java.lang.{ Double => JDouble }
 import scala.collection.StringParsers
 
+import language.experimental.captureChecking
+
 object Duration {
 
   /**

tests/pos-special/stdlib/concurrent/duration/DurationConversions.scala

@@ -12,6 +12,8 @@
 
 package scala.concurrent.duration
 
+import language.experimental.captureChecking
+
 import DurationConversions._
 
 // Would be nice to limit the visibility of this trait a little bit,

tests/pos-special/stdlib/concurrent/duration/package.scala

@@ -14,6 +14,8 @@ package scala.concurrent
 
 import scala.language.implicitConversions
 
+import language.experimental.captureChecking
+
 package object duration {
   /**
    * This object can be used as closing token if you prefer dot-less style but do not want