Revert "Method reference operator"

This reverts commit 67c574736912003c377218153f9d3b9c0c96a17b.
[Feature #16275]

1 files changed, 2 insertions, 11 deletions

diff --git a/test/ruby/test_syntax.rb b/test/ruby/test_syntax.rb
index 622017be83..286beb7074 100644
--- a/test/ruby/test_syntax.rb
+++ b/test/ruby/test_syntax.rb
@@ -93,13 +93,6 @@ class TestSyntax < Test::Unit::TestCase
     assert_valid_syntax("tap (proc do end)", __FILE__, bug9726)
   end
 
-  def test_methodref_literal
-    assert_separately [], <<-EOS
-      eval 'nil.:|;1'
-      1000.times{eval 'nil.:|;1'}
-    EOS
-  end
-
   def test_array_kwsplat_hash
     kw = {}
     h = {a: 1}
@@ -1014,10 +1007,8 @@ eom
   def test_fluent_dot
     assert_valid_syntax("a\n.foo")
     assert_valid_syntax("a\n&.foo")
-    assert_valid_syntax("a\n.:foo")
     assert_valid_syntax("a #\n#\n.foo\n")
     assert_valid_syntax("a #\n#\n&.foo\n")
-    assert_valid_syntax("a #\n#\n.:foo\n")
   end
 
   def test_safe_call_in_massign_lhs
@@ -1534,8 +1525,8 @@ eom
       assert_warning(/\A\z|:(?!#{__LINE__+1})\d+: #{warning}/o) {
         assert_equal([[], {}], obj.foo({}))
       }
-      assert_equal(-1, obj.:foo.arity)
-      parameters = obj.:foo.parameters
+      assert_equal(-1, obj.method(:foo).arity)
+      parameters = obj.method(:foo).parameters
       assert_equal(:rest, parameters.dig(0, 0))
       assert_equal(:block, parameters.dig(1, 0))
     end