sem_ch12.adb (Instantiate_Subprogram_Body): When creating the defining entity for...

sem_ch12.adb (Instantiate_Subprogram_Body): When creating the defining entity for the instance body...

2005-09-01  Ed Schonberg  <schonberg@adacore.com>
	    Javier Miranda  <miranda@adacore.com>
	    Gary Dismukes  <dismukes@adacore.com>

	* sem_ch12.adb (Instantiate_Subprogram_Body): When creating the
	defining entity for the instance body, make a new defining identifier
	rather than copying the entity of the spec, to prevent accidental
	sharing of the entity list.
	(Check_Private_View): When exchanging views of private types, build the
	list of exchanged views as a stack, to ensure that on exit the exchanges
	are undone in the proper order.
	(Analyze_Package_Instantiation, Analyze_Subprogram_Instantiation):
	Restore the compilation environment in case of instantiation_error.
	(Analyze_Generic_Subprogram_Declaration): Handle creation of type entity
	for an anonymous access result.
	(Instantiate_Generic_Subprogram): Subtype_Mark => Result_Definition
	(Formal_Entity): Handle properly the case of a formal package that
	denotes a generic package renaming.

From-SVN: r103879