2014-08-04 Hristian Kirtchev <kirtchev@adacore.com>

2014-08-04  Hristian Kirtchev  <kirtchev@adacore.com>

	* opt.ads Alphabetize various global flags. New flag
	Ignore_Pragma_SPARK_Mode along with a comment on usage.
	* sem_ch6.adb (Analyze_Generic_Subprogram_Body):
	Pragma SPARK_Mode is now allowed in generic units.
	(Analyze_Subprogram_Body_Helper): Do not verify the compatibility
	between the SPARK_Mode of a spec and that of a body when inside
	a generic.
	* sem_ch7.adb (Analyze_Package_Body_Helper): Do not verify the
	compatibility between the SPARK_Mode of a spec and that of a
	body when inside a generic.
	* sem_ch12.adb (Analyze_Generic_Subprogram_Declaration):
	Pragma SPARK_Mode is now allowed in generic units.
	(Analyze_Package_Instantiation): Save and restore the value of
	flag Ignore_ Pragma_SPARK_Mode in a stack-like fasion. Set
	the governing SPARK_Mode before analyzing the instance.
	(Analyze_Subprogram_Instantiation): Save and restore the value
	of flag Ignore_ Pragma_SPARK_Mode in a stack-like fasion. Set
	the governing SPARK_Mode before analyzing the instance.
	* sem_ch13.adb (Analyze_Aspect_Specifications): Emulate the
	placement of a source pragma when inserting the generated pragma
	for aspect SPARK_Mode.
	* sem_prag.adb (Analyze_Pragma): Reimplement the handling of
	pragma SPARK_Mode to allow for generics and their respective
	instantiations.
	* sem_util.ads, sem_util.adb (Check_SPARK_Mode_In_Generic): Removed.
	(Set_Ignore_Pragma_SPARK_Mode): New routine.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@213570 138bc75d-0d04-0410-961f-82ee72b054a4