* basic-block.h: Remove all #defines and prototypes related to
        integer lists.
        (free_bb_mem, compute_preds_succs): Remove prototype.
        * rtl.h (free_bb_mem): Remove prototype.
        * flow.c (alloc_int_list_node); Remove function.
        (add_inst_list_node, free_int_list, add_pred_succ): Likewise.
        (compute_preds_succs, free_bb_mem): Likewise.
        * gcse.c (gcse_main): Do not call free_bb_mem anymore.
        * toplev.c (rest_of_compilation): Likewise.
        * haifa-sched.c (build_control_flow): Use flow generated edge
        list to build the haifa specific edge list.
        (find_rgns): Use new CFG data structures instead of pred/succ lists.
        (schedule_insns): Do not build pred/succ lists anymore.  Instead
        build the edge table.

From-SVN: r30531