sem_ch8,adb (Analyze_Object_Renaming): Reject ambiguous expressions in an object...

sem_ch8,adb (Analyze_Object_Renaming): Reject ambiguous expressions in an object renaming declaration when...

2009-04-20  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch8,adb (Analyze_Object_Renaming): Reject ambiguous expressions
	in an object renaming declaration when the expected type is an
	anonymous access type.

	* sem_type.adb (Disambiguate): Use anonymousness to resolve a potential
	ambiguity when one interpretation is an anonymous access type and the
	other is a named access type, and the context itself is anonymous

From-SVN: r146404