2016-10-12  Ed Schonberg  <schonberg@adacore.com>

	* lib-writ.adb (Write_ALI): Removal of unused file entries from
	dependency list must be performed before the list is sorted,
	so that the dependency number of other files is properly set-up
	for use in tools that relate entity information to the unit in
	which they are declared.

2016-10-12  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_aggr.adb (Initialize_Ctrl_Array_Component):
	Create a copy of the initialization expression to avoid sharing
	it between multiple components.

2016-10-12  Yannick Moy  <moy@adacore.com>

	* einfo.adb, einfo.ads (Has_Partial_Visible_Refinement): New flag
	in abtract states.
	(Has_Non_Null_Visible_Refinement): Return true for patial refinement.
	(Partial_Refinement_Constituents): New function returns the full or
	partial refinement constituents depending on scope.
	* sem_ch3.adb (Analyze_Declarations): Remove partial visible
	refinements when exiting the scope of a package spec or body
	and those partial refinements are not in scope afterwards.
	* sem_ch7.adb, sem_ch7.ads (Install_Partial_Declarations): Mark
	abstract states of parent units with partial refinement so that
	it is visible.
	* sem_prag.adb (Analyze_Part_Of_In_Decl_Part): Mark enclosing
	abstract state if any as having partial refinement in that scope.
	(Analyze_Refined_Global_In_Decl_Part): Check constituent usage
	based on full or partial refinement depending on scope.

2016-10-12  Ed Schonberg  <schonberg@adacore.com>

	* exp_ch4.adb (Expand_N_Type_Conversion): If the target type
	has an invariant aspect, insert invariant call at the proper
	place in the code rather than rewriting the expression as an
	expression with actions, to prevent spurious semantic errors on
	the rewritten conversion when it is the object in a renaming.

From-SVN: r241048