* cli/cli-cmds.h (is_complete_command): Change parameter to a
``struct cmd_list_element *''.
* cli/cli-cmds.c (is_complete_command): Update. Use
cmd_cfunc_eq.
* top.c (execute_command): Pass the command to
is_complete_command.
* tracepoint.c: Replace function.cfunc with cmd_cfunc_eq.