* mi-cmd-var.c: Change all remaining occurrences of ui_out_tuple_begin
to make_cleanup_ui_out_tuple_begin_end. Change all remaining
occurrences of ui_out_list_begin to make_cleanup_ui_out_list_begin_end. Use do_cleanups instead of ui_out_list_end or ui_out_tuple_end. This
is a fix for PR gdb/680.
* mi-cmd-stack.c: Ditto.
* mi-main.c: Ditto.