object.c: no TypeError at special const dup

* object.c (rb_obj_dup): no longer raise a TypeError for special
  constants, and return itself instead.  [Feature#12979]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56906 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 3 insertions, 3 deletions

diff --git a/test/ruby/test_object.rb b/test/ruby/test_object.rb
index 7b3defa011..2f80bc6ffb 100644
--- a/test/ruby/test_object.rb
+++ b/test/ruby/test_object.rb
@@ -19,9 +19,9 @@ class TestObject < Test::Unit::TestCase
   end
 
   def test_dup
-    assert_raise(TypeError) { 1.dup }
-    assert_raise(TypeError) { true.dup }
-    assert_raise(TypeError) { nil.dup }
+    assert_equal 1, 1.dup
+    assert_equal true, true.dup
+    assert_equal nil, nil.dup
 
     assert_raise(TypeError) do
       Object.new.instance_eval { initialize_copy(1) }