2008-07-12 Pedro Alves <pedro@codesourcery.com>

2008-07-12  Pedro Alves  <pedro@codesourcery.com>

	* infrun.c (struct thread_stepping_state): Delete sal member.
	(init_thread_stepping_state): Add local sal.  Use it instead of
	tss->sal.
	(handle_inferior_event): New local stop_pc_sal.  Use it instead of
	tss->sal.
	(step_into_function): Add local stop_func_sal.  Use it instead of
	tss->sal.