[Bug fortran/51056] [4.7 Regression][OOP] Bogus "Unused module variable '__vtab_domain_Domain_container'"

[dominiq at lps dot ens.fr]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51056

--- Comment #2 from Dominique d'Humieres <dominiq at lps dot ens.fr> 2011-11-09 
15:33:05 UTC ---
Revision 177649 is OK.
Revision 178509 gives the warning.