2015-10-16  Bob Duff  <duff@adacore.com>

	* adadecode.h, adadecode.c (ada_demangle): Remove
	ada_demangle, no longer used.
	* a-except-2005.adb: Bring System.Traceback.Symbolic into the
	closure.

2015-10-16  Ed Schonberg  <schonberg@adacore.com>

	* sem_util.adb, sem_util.ads (Get_Reference_Discriminant): Utility to
	locate the access discriminant that supports implicit dereference on a
	record type.
	(Is_OK_Variable_For_Out_Parameter): Reject other illegal uses
	of Implicit_Dereference on an access_to_constant when actual
	parameter is a rewritten variable or function call.

From-SVN: r228886