Symbol#== should be able to be redefined

* vm.c (vm_init_redefined_flag): set redefinition flag for Symbol#==.
  The bug was introduced in r58895.

* test/ruby/test_symbol.rb: test for above.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59250 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 12 insertions, 0 deletions

diff --git a/test/ruby/test_symbol.rb b/test/ruby/test_symbol.rb
index e7f3d5a527..ba3256b820 100644
--- a/test/ruby/test_symbol.rb
+++ b/test/ruby/test_symbol.rb
@@ -514,4 +514,16 @@ class TestSymbol < Test::Unit::TestCase
     assert_not_equal sym.to_sym.hash,
                      `#{ruby} -e 'puts #{sym.inspect}.to_sym.hash'`.to_i
   end
+
+  def test_eq_can_be_redefined
+    assert_in_out_err([], <<-RUBY, ["foo"], [])
+      class Symbol
+        def ==(obj)
+          "foo"
+        end
+      end
+
+      puts :a == :a
+    RUBY
+  end
 end