Define Set#to_set so that aSet.to_set returns self.

* lib/set.rb (Set#to_set): Define Set#to_set so that aSet.to_set
  returns self. [Fixes GH-359]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42051 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 4 insertions, 0 deletions

diff --git a/NEWS b/NEWS
index 4594fc76af..f5fe38838d 100644
--- a/NEWS
+++ b/NEWS
@@ -137,6 +137,10 @@ with all sufficient information, see the ChangeLog file.
 
 === Stdlib compatibility issues (excluding feature bug fixes)
 
+* Set
+  * incompatible changes:
+    * Set#to_set now returns self instead of generating a copy.
+
 * URI
   * incompatible changes:
     * URI.decode_www_form follows current WHATWG URL Standard.