2015-10-16  Arnaud Charlet  <charlet@adacore.com>

	* usage.adb, debug.adb, a-except.adb, a-except.ads, a-except-2005.adb,
	a-except-2005.ads, s-imgrea.adb: Minor code clean ups related to
	jgnat/dotnet removal.

2015-10-16  Arnaud Charlet  <charlet@adacore.com>

	* s-osprim-vxworks.adb, s-osprim-darwin.adb, s-tadeca.adb,
	s-osprim-unix.adb, s-osprim-solaris.adb, s-osprim-posix.adb,
	s-osprim.ads (Monotonic_Clock): Removed, unused.

2015-10-16  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch4.adb (Try_Object_Operation, Try_One_Interpretation):
	Do not reset the Obj_Type of the prefix if an interpretation
	involves an untagged type, to prevent a crash when analyzing an
	illegal program in All_Errors mode.

2015-10-16  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_ch4.adb (Expand_N_Expression_With_Actions):
	Force the evaluation of the expression when its type is Boolean.
	(Force_Boolean_Evaluation): New routine.

2015-10-16  Bob Duff  <duff@adacore.com>

	* sem_util.adb (Has_Discrim_Dep_Array): Remove
	this function, and the call. No longer needed now that the back
	end can handle such things. Should result in further speedups
	in some cases.

2015-10-16  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch13.adb (Build_Predicate_Functions): If expression for
	predicate is side-effect free, indicate that the predicate
	function is pure, to allow for optimization of redundant
	predicate checks.

From-SVN: r228881