sem_ch13.adb (Check_Iterator_Functions): Emit error on Iterator aspect as well when...

sem_ch13.adb (Check_Iterator_Functions): Emit error on Iterator aspect as well when indexing function is illegal.

2015-05-21  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch13.adb (Check_Iterator_Functions): Emit error on Iterator
	aspect as well when indexing function is illegal.
	(Valid_Default_Iterator): Handle properly somme illegal cases
	to prevent compilation abandoned messages.
	(Check_Primitive_Function): Verify that type and indexing function
	are in the same scope.
	* freeze.adb (Freeze_Record): Extend patch on the presence of
	indexing aspects to aspect Default_Iterator.

From-SVN: r223475