[multiple changes]

2014-11-20  Ed Schonberg  <schonberg@adacore.com>

	* exp_ch3.adb (Expand_N_Object_Declaration): Handle properly
	a type invariant check on an object with default initialization
	and an address clause.

2014-11-20  Robert Dewar  <dewar@adacore.com>

	* sem_elab.adb (Check_A_Call): Handle variable ref case in
	SPARK (Check_Elab_Call): ditto (Find_Elab_Reference): ditto
	(Get_Referenced_Ent): ditto.
	* sem_elab.ads: Comment fixes to account for the fact that we
	now deal with variable references in SPARK mode.
	* sem_res.adb (Resolve_Entity_Name): In SPARK_Mode Call
	Check_Elab_Call for variable.

2014-11-20  Yannick Moy  <moy@adacore.com>

	* a-cofove.ads (Copy): Fix precondition, which should allow
	Capacity = 0.
	(First_To_Previous, Current_To_Last): Add necessary preconditions.

From-SVN: r217878