* final.c (peephole): Delete prototype.

        * gcse.c (process_insert_insn, pre_edge_insert): Add prototypes.
        (pre_insert_copies): Remove unused variable `bb'.

        * genrecog.c (debug_decision_0, debug_decision_list, main): Add
        prototypes.

        * output.h (peephole): Add prototype.

From-SVN: r30144