sem_warn.ads, [...] (Publicly_Referenceable): Generic formals of a generic subprogram are not visible outside the body.

2005-11-14  Ed Schonberg  <schonberg@adacore.com>
	    Robert Dewar  <dewar@adacore.com>

	* sem_warn.ads, sem_warn.adb (Publicly_Referenceable): Generic formals
	of a generic subprogram are not visible outside the body.
	(Set_Warning_Switch): New procedure (code to set warning mode moved
	here from Switch.C so that it can be shared by pragma processing.
	(Check_References): Special case warning for non-modified non-imported
	volatile objects.
	* par-prag.adb: Modify processing of pragma Warnings to accomodate new
	form with a string literal argument

From-SVN: r107008