[Bug preprocessor/22042] stringification BUG

[s__nakayama at infoseek dot jp]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to fail|                            |3.0.4 3.2.3 3.3.3 3.3.6
                   |                            |3.4.4 4.0.0
      Known to work|                            |2.95.3


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22042