2014-06-11  Robert Dewar  <dewar@adacore.com>

	* debug.adb: Add debug flag -gnatd.q.
	* erroutc.adb (Prescan_Message): Bomb if untagged warning with
	-gnatd.q set.
	* styleg.adb (Check_Xtra_Parens): Message should be a style
	message.
	* sem_aggr.adb, sem_ch3.adb, exp_ch9.adb, checks.adb, sem_prag.adb,
	par-endh.adb, eval_fat.adb, freeze.adb, sem_util.adb, sem_attr.adb,
	sem_elab.adb, sem_ch6.adb, sem_warn.adb, sem_cat.adb,
	sem_ch13.adb, lib-xref.adb: Add remaining warning tags.

2014-06-11  Ben Brosgol  <brosgol@adacore.com>

	* gnat_rm.texi: Revised chapter on Implementation Defined
	Characteristics.

From-SVN: r211448