2017-04-25  Bob Duff  <duff@adacore.com>

	* uname.ads, uname.adb (Is_Predefined_Unit_Name,
	Is_Internal_Unit_Name): New functions for operating on unit
	names, as opposed to file names. There's some duplicated code
	with fname.adb, which is unfortunate, but it seems like we don't
	want to add dependencies here.
	* fname-uf.adb (Get_File_Name): Change Is_Predefined_File_Name
	to Is_Predefined_Unit_Name; the former was wrong, because Uname
	is not a file name at all.
	* fname.ads, fname.adb: Document the fact that
	Is_Predefined_File_Name and Is_Internal_File_Name can be called
	for ALI files, and fix the code so it works properly for ALI
	files. E.g. these should return True for "system.ali".

2017-04-25  Justin Squirek  <squirek@adacore.com>

	* exp_util.adb (Add_Invariant): Removed,
	code moved to Add_Invariant_Check, Add_Inherited_Invariant,
	and Add_Own_Invariant.	(Add_Invariant_Check): Used
	for adding runtime checks from any kind of invariant.
	(Add_Inherited_Invariant): Generates invariant checks for
	class-wide invariants (Add_Interface_Invariants): Removed, code
	moved to Build_Invariant_Procedure_Body (Add_Own_Invariant):
	Create a types own invariant procedure (Add_Parent_Invariants):
	Removed, code moved to Build_Invariant_Procedure_Body
	(Build_Invariant_Procedure_Body): Add refactored calls
	and integrated code from Add_Parent_Invariants and
	Add_Interface_Invariants.
	(Process_Type): Removed, the
	relavant code was inlined into both Add_Own_Invariant and
	Add_Inherited_Invariant.

From-SVN: r247154