[Ada] Don't check No_Wide_Characters restriction for illegal types

gcc/ada/

	* sem_ch3.adb (Analyze_Private_Extension_Declaration): Check
	No_Wide_Characters restriction after rejecting illegal parent
	types.
	(Derived_Type_Declaration): Likewise.
	(Find_Type_Of_Subtype_Indic): Remove check for
	No_Wide_Characters restriction, which was done too early.
1 file changed