[Ada] Minor reformattings

[Ada] Minor reformattings

gcc/ada/

	* par_sco.adb: Align with/use clauses.
	(Traverse_Declarations_Or_Statements): Minor comment fix.
	* aspects.adb, atree.adb, atree.ads, checks.adb, comperr.adb,
	contracts.adb, cstand.adb, debug_a.adb, einfo-utils.adb,
	errout.adb, eval_fat.adb, exp_aggr.adb, expander.adb,
	exp_atag.adb, exp_attr.adb, exp_cg.adb, exp_ch11.adb,
	exp_ch12.adb, exp_ch13.adb, exp_ch2.adb, exp_ch3.adb,
	exp_ch4.adb, exp_ch5.adb, exp_ch6.adb, exp_ch7.adb, exp_ch8.adb,
	exp_ch9.adb, exp_code.adb, exp_dbug.adb, exp_disp.adb,
	exp_dist.adb, exp_fixd.adb, exp_imgv.adb, exp_intr.adb,
	exp_pakd.adb, exp_prag.adb, exp_put_image.adb, exp_sel.adb,
	exp_smem.adb, exp_spark.adb, exp_strm.adb, exp_tss.adb,
	exp_unst.adb, exp_util.adb, exp_util.ads, freeze.adb,
	frontend.adb, ghost.adb, gnat1drv.adb, gnat_cuda.adb,
	impunit.adb, inline.adb, itypes.adb, itypes.ads, layout.adb,
	lib.adb, lib-load.adb, lib-writ.adb, lib-xref.adb,
	lib-xref-spark_specific.adb, live.adb, nlists.adb, par.adb,
	par-ch11.adb, par-ch3.adb, par-ch5.adb, par-ch6.adb, pprint.adb,
	repinfo.adb, restrict.adb, rtsfind.adb, scil_ll.adb, scn.adb,
	sem.adb, sem_aggr.adb, sem_attr.adb, sem_aux.adb, sem_case.adb,
	sem_cat.adb, sem_ch10.adb, sem_ch11.adb, sem_ch12.adb,
	sem_ch13.adb, sem_ch2.adb, sem_ch3.adb, sem_ch4.adb,
	sem_ch5.adb, sem_ch6.adb, sem_ch7.adb, sem_ch8.adb, sem_ch9.adb,
	sem_dim.adb, sem_disp.adb, sem_dist.adb, sem_elab.adb,
	sem_elim.adb, sem_eval.adb, sem_intr.adb, sem_mech.adb,
	sem_prag.adb, sem_res.adb, sem_scil.adb, sem_smem.adb,
	sem_type.adb, sem_util.adb, sem_util.ads, sem_warn.adb,
	sinfo-cn.adb, sinfo-utils.ads, sinput.adb, sinput-l.adb,
	sprint.adb, style.adb, styleg.adb, tbuild.adb, tbuild.ads,
	treepr.adb, uname.adb: Align with/use clauses.