gdb/

gdb/
	* breakpoint.c (bpstat_do_actions): New variable cleanup_if_error, call
	make_bpstat_clear_actions_cleanup and discard_cleanups for it.
	* defs.h (make_bpstat_clear_actions_cleanup): New declaration.
	* exceptions.c (throw_exception): Remove the bpstat_clear_actions call.
	* inf-loop.c (inferior_event_handler): New variable cleanup_if_error,
	call make_bpstat_clear_actions_cleanup and discard_cleanups for it.
	Call bpstat_clear_actions for failed fetch_inferior_event_wrapper.
	* infrun.c (fetch_inferior_event): Call
	make_bpstat_clear_actions_cleanup.
	* top.c (execute_command): New variable cleanup_if_error, call
	make_bpstat_clear_actions_cleanup and discard_cleanups for it.
	* utils.c (do_bpstat_clear_actions_cleanup)
	(make_bpstat_clear_actions_cleanup): New functions.

gdb/testsuite/
	* gdb.base/commands.exp (error_clears_commands_left): New function.
	(): Call it.