[multiple changes]

[multiple changes]

2014-01-23  Robert Dewar  <dewar@adacore.com>

	* opt.adb (Register_Opt_Config_Switches): Save SPARK_Mode_Pragma
	setting.

2014-01-23  Ed Schonberg  <schonberg@adacore.com>

	* sem_util.adb (Is_Potentially_Unevaluated): Predicate only
	applies to expressions that come from source.
	* sem_attr.adb (Analyze_Attribute, case 'Old): Improve error
	message.
	(Analyze_Attribute, case 'Loop_Entry): Apply SPARK 2014 legality
	rule regarding potentially unevaluated expressions, to prefix
	of attribute.

From-SVN: r206993