[multiple changes]

[multiple changes]

2017-09-08  Yannick Moy  <moy@adacore.com>

	* sem_prag.adb (Analyze_Pragma): Issue more precise error messages on
	Loop_Variant.

2017-09-08  Ed Schonberg  <schonberg@adacore.com>

	* exp_attr.adb (Build_Record_VS_Func): If the record is an
	unchecked union, do not emit checks for its (non-existent)
	discriminants, or for variant parts that depend on them.

2017-09-08  Justin Squirek  <squirek@adacore.com>

	* sem_ch4.adb (Find_Equality_Types.Try_One_Interp,
	Find_Comparison_Type.Try_One_Interp): Add check for generic
	instances.

From-SVN: r251878