2017-01-23  Gary Dismukes  <dismukes@adacore.com>

	* a-calend.adb, prep.adb, debug.adb, prj.ads, prepcomp.adb,
	exp_disp.adb, s-imgrea.adb, g-socket.adb, g-socket.ads, sem_ch13.adb,
	prj-tree.ads: Minor spelling change for consistency (behaviour ->
	behavior).

2017-01-23  Ed Schonberg  <schonberg@adacore.com>

	* scng.adb (Scan): Use Ada version Ada_2020 to flag use of
	Target_Name.
	* par-ch4.adb (P_Primary): Ditto.
	* opt.ads: Add Ada_2020 (optimistically) to enumeration list of
	Ada_Version_Type.
	* switch-c.adb (Scan_Front_End_Switches): Recognize -gnat2020 for
	new Ada version Ada_2020.

2017-01-23  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_attr.adb (Expand_Loop_Entry_Attribute): Force the generation
	of a nominal type for the constant which captures the value of
	the attribute prefix. Various clean ups.
	* sem_attr.adb (Analyze_Attribute): Clean up the processing of
	'Loop_Entry.

2017-01-23  Yannick Moy  <moy@adacore.com>

	* sem_util.adb (Has_Enabled_Property): Treat
	protected objects and variables differently from other variables.

From-SVN: r244787