merge revision(s) 66436: [Backport #15427]

	should use defined_class.

	* vm_insnhelper.c (vm_call_method_each_type): we should use me->defined_class
	  instead of me->owner because me->owner doesn't has correct ancestors list.
	  [Bug #15427]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_5@67238 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 18 insertions, 0 deletions

diff --git a/test/ruby/test_module.rb b/test/ruby/test_module.rb
index cc5894433a..076ea0901f 100644
--- a/test/ruby/test_module.rb
+++ b/test/ruby/test_module.rb
@@ -2290,6 +2290,24 @@ class TestModule < Test::Unit::TestCase
     end;
   end
 
+  def test_private_extended_module
+    assert_separately [], %q{
+      class Object
+        def bar; "Object#bar"; end
+      end
+      module M1
+        def bar; super; end
+      end
+      module M2
+        include M1
+        private(:bar)
+        def foo; bar; end
+      end
+      extend M2
+      assert_equal 'Object#bar', foo
+    }
+  end
+
   private
 
   def assert_top_method_is_private(method)