[Bug c/53404] New: warning column reported on comment in warning during bootstrap

[andi-gcc at firstfloor dot org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53404

             Bug #: 53404
           Summary: warning column reported on comment in warning during
                    bootstrap
    Classification: Unclassified
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassig...@gcc.gnu.org
        ReportedBy: andi-...@firstfloor.org


Looking through the warnings on a bootstrap I see the following columns
incorrectly reported by the "^" feature.

gengtype-lex.c:1888:27: warning: comparison between signed and unsigned integer
expressions [-Wsign-compare]
   YY_INPUT( (&YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move]),
                           ^
gengtype-lex.c:1096:20: note: in expansion of macro 'YY_INPUT'
   int n; \
                    ^
gengtype-lex.c:1887:3: note: expanded from here
   /* Read in more data. */
   ^

Obviously the comment is not to blame