[RFAv4 0/5] info [args|functions|locals|variables] [-q] [-t TYPEREGEXP] [NAMEREGEXP]

[Philippe Waroquiers <philippe dot waroquiers at skynet dot be>]

This is the 4th iteration of the patch series.

Compared to the previous version, it handles all the comments given by Pedro.
The main changes are:
  * extract_print_info_args can be used as part of a main arg parsing loop.
  * info_qt.exp uses with_test_prefix to provide a better gdb.sum.

Thanks