exp_ch6.adb (Expand_Actuals): If the actual for an in-out parameter is aliased and is a by_reference type...

2004-10-26  Ed Schonberg  <schonberg@gnat.com>
	    Eric Botcazou  <ebotcazou@act-europe.fr>

	* exp_ch6.adb (Expand_Actuals): If the actual for an in-out parameter
	is aliased and is a by_reference type, do not pass by copy.
	(Expand_N_Function_Call) <Rhs_Of_Assign_Or_Decl>: New function to
	detect whether the call is in the right side of an assignment or
	the expression of an object declaration.  Recurse on component
	association within aggregates.
	Call it in the condition that determines whether the temporary is
	necessary for correct stack-checking.

From-SVN: r89651