* a-cfhama.adb, a-cfhase.adb, a-cforma.adb, a-cforse.adb Add
	SPARK_Mode in the body.
	* sem_ch7.adb (Analyze_Package_Body_Helper): Restore the original
	way to verify the consistency of SPARK_Mode between a spec and
	a body.
	* sem_ch12.adb (Analyze_Package_Instantiation): Remove the call
	to Set_Ignore_Pragma_SPARK_Mode. Set flag Ignore_Pragma_SPARK_Mode
	manually.
	(Analyze_Subprogram_Instantiation): Remove the call to
	Set_Ignore_Pragma_SPARK_Mode. Set flag Ignore_Pragma_SPARK_Mode
	manually.
	* sem_prag.adb (Analyze_Pragma): Remove local variable
	Inst_Id. SPARK_Mode can no longer be applied to a package or
	subprogram instantiation.
	* sem_util.adb, sem_util.ads (Set_Ignore_Pragma_SPARK_Mode):
	Removed.

From-SVN: r213578