freeze.adb (Check_Component_Storage_Order): Get full view of component type.

2016-05-02  Thomas Quinot  <quinot@adacore.com>

	* freeze.adb (Check_Component_Storage_Order): Get full view of
	component type.

From-SVN: r235716

gcc/ada/ChangeLog

+2016-05-02  Thomas Quinot  <quinot@adacore.com>
+
+	* freeze.adb (Check_Component_Storage_Order): Get full view of
+	component type.
+
 2016-05-02  Hristian Kirtchev  <kirtchev@adacore.com>
 
 	* checks.adb, freeze.adb, sem_res.adb, s-stposu.adb, repinfo.adb:

gcc/ada/freeze.adb

@@ -1242,6 +1242,13 @@ package body Freeze is
       --  the attribute definition clause is attached to the first subtype.
 
       Comp_Type := Base_Type (Comp_Type);
+
+      --  If the base type is incomplete or private, go to full view if known
+
+      if Present (Underlying_Type (Comp_Type)) then
+         Comp_Type := Underlying_Type (Comp_Type);
+      end if;
+
       Comp_ADC := Get_Attribute_Definition_Clause
                     (First_Subtype (Comp_Type),
                      Attribute_Scalar_Storage_Order);