2015-05-26  Javier Miranda  <miranda@adacore.com>

	* sem_aggr.adb (Resolve_Aggregate, Resolve_Extension_Aggregate):
	Code cleanup.
	* sem_ch3.adb (Build_Derived_Record_Type,
	Record_Type_Declaration): Code cleanup.
	* sem_ch4.adb (Has_Arbitrary_Evaluation_Order,
	Stop_Subtree_Climbind): Tables which speed up the identification
	of dangerous calls to Ada 2012 functions with writable actuals
	(AI05-0144).
	(Analyze_Arithmetic_Op, Analyze_Call, Analyze_Comparison_Op,
	Analyze_Equality_Op, Analyze_Logical_Op, Analyze_Membership_Op,
	Analyze_Range): Code cleanup.
	(Is_Arbitrary_Evaluation_Order_Construct): Removed.
	(Check_Writable_Actuals): Code cleanup using the added tables.
	* sem_util.adb (Check_Function_Writable_Actuals): Return
	immediately if the node does not have the flag Check_Actuals
	set to True.

2015-05-26  Eric Botcazou  <ebotcazou@adacore.com>

	* exp_ch6.adb (Add_Call_By_Copy_Code): Remove restrictive
	condition in the detection of the effects of Remove_Side_Effects.
	* exp_util.ads (Remove_Side_Effects): Add general and historical note.
	* exp_util.adb (Is_Name_Reference): New predicate.
	(Remove_Side_Effects): Use it in lieu of Is_Object_Reference
	in order to decide whether to use the renaming to capture the
	side effects of the subexpression.
	(Side_Effect_Free): Remove obsolete test.

From-SVN: r223668