Mark some more tests as failing on Py2 only

Author: edschofield

future/tests/test_builtins.py

@@ -1325,7 +1325,7 @@ def test_input(self):
             fp.close()
             unlink(TESTFN)
 
-    @unittest.expectedFailure
+    @expectedFailurePY2
     @unittest.skipUnless(pty, "the pty and signal modules must be available")
     def check_input_tty(self, prompt, terminal_input, stdio_encoding=None):
         if not sys.stdin.isatty() or not sys.stdout.isatty():