message: Print debug info when only --debug supplied
  Summary: Before dex.py --debug a.dex wouldn't output anything. Now it outputs methods and their debug info
diff: @@ -1820,7 +1820,7 @@ class File:
  dc = options.dump_code or options.dump_all
  ddi = options.debug or options.dump_all
  for method in methods:
  - if options.dump_code or options.dump_all:
  + if dc or ddi:
  method.dump(f=f, dump_code=dc, dump_debug_info=ddi)
  f.write('\n')
  