* rtsfind.ads, rtsfind.adb:
	(RE_Get_RACW): New runtime library entity provided by PolyORB s-parint.
	(Check_RPC): Support per-PCS-kind API versioning.
	
	exp_dist.ads, exp_dist.adb:
	(Build_Stub_Tag, Get_Stub_Elements): New utility subprograms.
	(PolyORB_Support.Add_RACW_From_Any): Offload common code to new runtime
	 library function Get_RACW.
	(PolyORB_Support.Add_RACW_To_Any): Offload common code to new runtime
	library function Get_Reference.
	(PolyORB_Support.Add_RACW_Read_Attribute): Use Get_RACW instead of going
	through an intermediate Any.
	(PolyORB_Support.Add_RACW_Write_Attribute): Use Get_Reference instead of
	going through an intermediate Any.
	
	* sem_dist.adb: Minor reformatting.

From-SVN: r135932