add @since scaladoc tag to scala.* types

only for classes created after Scala 1.4

1 files changed, 5 insertions, 1 deletions

diff --git a/src/library/scala/Mutable.scala b/src/library/scala/Mutable.scala
index 2c596e2b81..992d295da3 100644
--- a/src/library/scala/Mutable.scala
+++ b/src/library/scala/Mutable.scala
@@ -7,5 +7,9 @@
 \*                                                                      */
 package scala
 
-/** A marker trait for mutable datatructures such as mutable collections */
+/**
+ * A marker trait for mutable datatructures such as mutable collections
+ *
+ * @since 2.8
+ */
 trait Mutable