genoutput.c: Don't include errors.h.

genoutput.c: Don't include errors.h.

        * genoutput.c: Don't include errors.h.
        (struct data): Add lineno member.
        (have_error): New.
        (scan_operands): Use message_with_line instead of error.
        (validate_insn_alternatives): Likewise.
        (gen_insn): Accept and store the pattern's line number.
        (gen_peephole, gen_expand, gen_split): Likewise.
        (main): Don't set progname.  Pass line_no to gen_foo.

From-SVN: r34205