Defines starting with `t' in src/od-win32

• TESTING_LANGUAGES src/od-win32/win32.c:807
• TEST_LANGID src/od-win32/win32.c:808
• TIOCM_CAR src/od-win32/parser.c:434
• TIOCM_DSR src/od-win32/parser.c:435
• TRIGGER_THREAD src/od-win32/bsdsock.c:69