[Ada] Sem_Ch12: add a comment to indicate future work

2019-09-19  Eric Botcazou  <ebotcazou@adacore.com>

gcc/ada/

	* sem_ch12.adb (Check_Private_View): Add a comment to indicate
	future work.

From-SVN: r275955

gcc/ada/ChangeLog

 2019-09-19  Eric Botcazou  <ebotcazou@adacore.com>
 
+	* sem_ch12.adb (Check_Private_View): Add a comment to indicate
+	future work.
+
+2019-09-19  Eric Botcazou  <ebotcazou@adacore.com>
+
 	* exp_aggr.adb (Has_Mutable_Components): Look at the underlying
 	type of components to find out whether they are mutable.
 

gcc/ada/sem_ch12.adb

@@ -7478,6 +7478,11 @@ package body Sem_Ch12 is
                end loop;
             end;
 
+         --  The following case does not test Has_Private_View (N) so it may
+         --  end up switching views when they are not supposed to be switched.
+         --  This might be in keeping with Set_Global_Type setting the flag
+         --  for an array type even if it is not private ???
+
          elsif Is_Private_Type (T)
            and then Present (Full_View (T))
            and then Is_Array_Type (Full_View (T))