* test/ruby/test_in.rb: Skip test_open_fifo_does_not_block_other_threads

on cygwin. Fifos seem to work okay in cygwin, but this test repeatedly
  hangs.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55468 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,9 @@
+Mon Jun 20 18:39:16 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
+
+	* test/ruby/test_in.rb: Skip test_open_fifo_does_not_block_other_threads
+          on cygwin. Fifos seem to work okay in cygwin, but this test repeatedly
+	  hangs.
+
 Mon Jun 20 13:35:06 2016  Shugo Maeda  <shugo@ruby-lang.org>
 
 	* vm.c (invoke_bmethod, invoke_block_from_c_0): revert r52104

test/ruby/test_io.rb

@@ -3253,7 +3253,7 @@ End
         assert_equal("foo", t1_value)
       EOS
     }
-  end if /mswin|mingw|bccwin/ !~ RUBY_PLATFORM
+  end if /mswin|mingw|bccwin|cygwin/ !~ RUBY_PLATFORM
 
   def test_open_flag
     make_tempfile do |t|