[Bug fortran/82721] Error message with corrupted text, sometimes ICE

[gscfq@t-online.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82721

--- Comment #1 from G. Steinmetz <gscfq@t-online.de> ---

With a test version (configured with --enable-checking=yes)
sometimes a backtrace is produced, like :

f951: internal compiler error: Segmentation fault
0xca7e1f crash_signal
        ../../gcc/toplev.c:326
0x72264e resolve_actual_arglist
        ../../gcc/fortran/resolve.c:1998
0x71f324 resolve_function
        ../../gcc/fortran/resolve.c:3118
0x71ff8a gfc_resolve_expr(gfc_expr*)
        ../../gcc/fortran/resolve.c:6702
0x723448 resolve_index_expr
        ../../gcc/fortran/resolve.c:11618
0x7234b4 resolve_charlen
        ../../gcc/fortran/resolve.c:11663
0x72d9af resolve_charlen
        ../../gcc/fortran/resolve.c:11639
0x72d9af resolve_types
        ../../gcc/fortran/resolve.c:16293
0x7292fc gfc_resolve(gfc_namespace*)
        ../../gcc/fortran/resolve.c:16409
0x712c6a resolve_all_program_units
        ../../gcc/fortran/parse.c:6027
0x712c6a gfc_parse_file()
        ../../gcc/fortran/parse.c:6277
0x75819f gfc_be_parse_file
        ../../gcc/fortran/f95-lang.c:204