einfo.adb (First_Private_Entity, [...]): Addition of one barrier to avoid wrong usage...

einfo.adb (First_Private_Entity, [...]): Addition of one barrier to avoid wrong usage of this attribute.

2005-03-17  Javier Miranda  <miranda@adacore.com>

	* einfo.adb (First_Private_Entity, Set_First_Private_Entity): Addition
	of one barrier to avoid wrong usage of this attribute.

	* sem_ch12.adb (Formal_Entity): Fix erroneous usage of the attribute
	First_Private_Entity.

	* sem_ch7.adb (Install_Visible_Declarations): Add a barrier to protect
	the subprogram against wrong usage.
	Adapt the code to traverse the entities in the
	scope of a record_type because in addition to its usage regarding
	packages, this subprogram is also called by Expand_N_Freeze_Entity
	to install the visible declarations of the enclosing scope of a
	record_type_with_private to establish the proper visibility before
	freezing the entity and related subprograms.

From-SVN: r96664