Revert "Add {Method,UnboundMethod}#{public?,private?,protected?}"

This reverts commit 27278150685e738f84105d09843d3ba371146c7a and
58dc8bf8f15df9a33d191074e8a5d4946a3d59d5.

Visibility is an attribute of the method entry in a class, not an
attribute of the Method object.

Fixes [#18729]
Fixes [#18751]
Fixes [#18435]

1 files changed, 2 insertions, 51 deletions

diff --git a/test/ruby/test_method.rb b/test/ruby/test_method.rb
index 83e499913a..56e94493d9 100644
--- a/test/ruby/test_method.rb
+++ b/test/ruby/test_method.rb
@@ -199,11 +199,6 @@ class TestMethod < Test::Unit::TestCase
     assert_equal(o.method(:foo), o.method(:foo))
     assert_equal(o.method(:foo), o.method(:bar))
     assert_not_equal(o.method(:foo), o.method(:baz))
-
-    class << o
-      private :bar
-    end
-    assert_not_equal(o.method(:foo), o.method(:bar))
   end
 
   def test_hash
@@ -330,8 +325,8 @@ class TestMethod < Test::Unit::TestCase
     def PUBLIC_SINGLETON_TEST.def; end
   end
   def test_define_singleton_method_public
-    assert_equal(true, PUBLIC_SINGLETON_TEST.method(:dsm).public?)
-    assert_equal(true, PUBLIC_SINGLETON_TEST.method(:def).public?)
+    assert_nil(PUBLIC_SINGLETON_TEST.dsm)
+    assert_nil(PUBLIC_SINGLETON_TEST.def)
   end
 
   def test_define_singleton_method_no_proc
@@ -1197,50 +1192,6 @@ class TestMethod < Test::Unit::TestCase
     assert_nil(super_method)
   end
 
-  def test_method_visibility_predicates
-    v = Visibility.new
-    assert_equal(true, v.method(:mv1).public?)
-    assert_equal(true, v.method(:mv2).private?)
-    assert_equal(true, v.method(:mv3).protected?)
-    assert_equal(false, v.method(:mv2).public?)
-    assert_equal(false, v.method(:mv3).private?)
-    assert_equal(false, v.method(:mv1).protected?)
-  end
-
-  def test_unbound_method_visibility_predicates
-    assert_equal(true, Visibility.instance_method(:mv1).public?)
-    assert_equal(true, Visibility.instance_method(:mv2).private?)
-    assert_equal(true, Visibility.instance_method(:mv3).protected?)
-    assert_equal(false, Visibility.instance_method(:mv2).public?)
-    assert_equal(false, Visibility.instance_method(:mv3).private?)
-    assert_equal(false, Visibility.instance_method(:mv1).protected?)
-  end
-
-  class VisibilitySub < Visibility
-    protected :mv1
-    public :mv2
-    private :mv3
-  end
-
-  def test_method_visibility_predicates_with_subclass_visbility_change
-    v = VisibilitySub.new
-    assert_equal(false, v.method(:mv1).public?)
-    assert_equal(false, v.method(:mv2).private?)
-    assert_equal(false, v.method(:mv3).protected?)
-    assert_equal(true, v.method(:mv2).public?)
-    assert_equal(true, v.method(:mv3).private?)
-    assert_equal(true, v.method(:mv1).protected?)
-  end
-
-  def test_unbound_method_visibility_predicates_with_subclass_visbility_change
-    assert_equal(false, VisibilitySub.instance_method(:mv1).public?)
-    assert_equal(false, VisibilitySub.instance_method(:mv2).private?)
-    assert_equal(false, VisibilitySub.instance_method(:mv3).protected?)
-    assert_equal(true, VisibilitySub.instance_method(:mv2).public?)
-    assert_equal(true, VisibilitySub.instance_method(:mv3).private?)
-    assert_equal(true, VisibilitySub.instance_method(:mv1).protected?)
-  end
-
   def rest_parameter(*rest)
     rest
   end