sem_aggr.adb, [...] (Valid_Ancestor): Resolve confusion between partial and full...

sem_aggr.adb, [...] (Valid_Ancestor): Resolve confusion between partial and full views of an ancestor of the context...

2008-08-20  Ed Schonberg  <schonberg@adacore.com>

	* sem_aggr.adb, sem_type.adb, exp_ch9.ads, einfo.ads,
	exp_ch6.adb, exp_aggr.adb (Valid_Ancestor): Resolve
	confusion between partial and full views of an ancestor of the context
	type when the parent is a private extension declared in a parent unit,
	and full views are available for the context type.

From-SVN: r139269