* final.c (bb_str): Qualify a char* with the keyword `const'.
        (add_bb_string, final_scan_insn, output_asm_insn): Likewise.
        * fix-header.c (read_scan_file): Likewise.
        * genoutput.c (output_epilogue, process_template): Likewise.
        * local-alloc.c (requires_inout, block_alloc): Likewise.
        * output.h (output_asm_insn, assemble_string): Likewise.
        * recog.c (recog_constraints, check_asm_operands,
        decode_asm_operands, extract_insn, preprocess_constraints,
        constrain_operands): Likewise.
        * recog.h (operand_alternative, recog_constraints, insn_template,
        insn_outfun, insn_operand_constraint, insn_name): Likewise.
        * regclass.c (record_reg_classes, scan_one_insn): Likewise.
        * regmove.c (find_matches): Likewise.
        * reload.c (alternative_allows_memconst): Likewise.
        * reload1.c (constraint_accepts_reg_p,
        reload_cse_simplify_operands): Likewise.
        * rtl.h (decode_asm_operands): Likewise.
        * scan.h (fn_decl): Likewise.
        * varasm.c (assemble_string): Likewise.

From-SVN: r24834