exp_dist.adb: Declare subprogram index in Build_RPC_Receiver_Body...

exp_dist.adb: Declare subprogram index in Build_RPC_Receiver_Body...

	* exp_dist.adb:
	Declare subprogram index in Build_RPC_Receiver_Body, to reduce the
	amount of PCS-specific code in RACW stubs generation.
	(Copy_Specification): Set Etype on copied formal parameter entities, as
	this information is needed for PolyORB stubs generation.
	(PolyORB_Support.Build_Subprogram_Receiving_Stubs): Remove unused
	variable Dynamic_Async.
	(Build_Subprogram_Receiving_Stubs): Make PCS-specific
	(Build_RPC_Receiver_Specification): Make generic again, as recent
	changes have allowed RPC receivers to have the same profile for both
	variants of the PCS.
	Reorganise RPC receiver generation to reduce differences between the
	structure of GARLIC and PolyORB RPC receivers.
	(Add_Receiving_Stubs_To_Declarations): Make this subprogram
	PCS-specific.
	Simplify elaboration code for RCI packages.

	* s-parint.ads, s-parint.adb, rtsfind.ads: Reorganise RPC receiver
	generation to reduce differences between the structure of GARLIC and
	PolyORB RPC receivers.

	* s-stratt.adb: Fix typo in comment.

From-SVN: r92837