einfo.ads, einfo.adb: New attribute PPC_Wrapper for entries and entry families.

einfo.ads, einfo.adb: New attribute PPC_Wrapper for entries and entry families.

2010-10-18  Ed Schonberg  <schonberg@adacore.com>

	* einfo.ads, einfo.adb: New attribute PPC_Wrapper for entries and entry
	families. Denotes a procedure that performs pre/postcondition checks
	and then performs the entry call.
	* sem_res.adb (Resolve_Entry_Call): If the entry has
	pre/postconditions, replace call with a call to the PPC_Wrapper of the
	entry.
	* exp_ch9.adb (Build_PPC_Wrapper): new procedure.
	(Expand_N_Entry_Declaration, Expand_N_Protected_Type_Declaration): call
	Build_PPC_Wrapper for all entries in task and protected definitions.

From-SVN: r165622