* c-parse.in (cast_expr): Constify.

    * c-parse.in (cast_expr): Constify.

        * cccp.c (special_symbol): Likewise.

        * cse.c (hash_cse_reg_info, cse_reg_info_equal_p): Likewise.

        * dwarf2out.c (base_type_die): Likewise.

        * global.c (allocno_compare): Likewise.

        * local-alloc.c (qty_compare_1, qty_sugg_compare_1): Likewise.

        * regclass.c (fix_register): Likewise.

        * rtl.h (fix_register): Likewise.

        * stupid.c (stupid_reg_compare): Likewise.

        * toplev.c (decode_f_option): Likewise.

        * tree.c (build_complex_type): Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@30196 138bc75d-0d04-0410-961f-82ee72b054a4