sem_util.ads (Indexed_Component_Bit_Offset): Declare.

sem_util.ads (Indexed_Component_Bit_Offset): Declare.

2016-06-16  Eric Botcazou  <ebotcazou@adacore.com>

	* sem_util.ads (Indexed_Component_Bit_Offset): Declare.
	* sem_util.adb (Indexed_Component_Bit_Offset): New
	function returning the offset of an indexed component.
	(Has_Compatible_Alignment_Internal): Call it.
	* sem_ch13.adb (Offset_Value): New function returning the offset of an
	Address attribute reference from the underlying entity.
	(Validate_Address_Clauses): Call it and take the offset into
	account for the size warning.

From-SVN: r237511