[gcc r13-474] [Ada] Clarify code for detecting volatile refinement properties

[Pierre-Marie de Rodat <pmderodat@gcc.gnu.org>]

https://gcc.gnu.org/g:457fb3369aec1e9d681853bcd33d77bb8da2f8ea

commit r13-474-g457fb3369aec1e9d681853bcd33d77bb8da2f8ea
Author: Piotr Trojanek <trojanek@adacore.com>
Date:   Mon Mar 7 14:07:15 2022 +0100

    [Ada] Clarify code for detecting volatile refinement properties
    
    Routine Type_Or_Variable_Has_Enabled_Property handles either types or
    objects; replace negation with an explicit positive condition.
    
    Cleanup related to handling of volatile refinement aspects in SPARK;
    behaviour is unaffected.
    
    gcc/ada/
    
            * sem_util.adb (Type_Or_Variable_Has_Enabled_Property): Clarify.

Diff:
---
 gcc/ada/sem_util.adb | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/gcc/ada/sem_util.adb b/gcc/ada/sem_util.adb
index d53c4356976..6cf3c70c8d9 100644
--- a/gcc/ada/sem_util.adb
+++ b/gcc/ada/sem_util.adb
@@ -12696,10 +12696,10 @@ package body Sem_Util is
             return Type_Or_Variable_Has_Enabled_Property
               (First_Subtype (Etype (Base_Type (Item_Id))));
 
-         --  If not specified explicitly for an object and the type
+         --  If not specified explicitly for an object and its type
          --  is effectively volatile, then take result from the type.
 
-         elsif not Is_Type (Item_Id)
+         elsif Is_Object (Item_Id)
            and then Is_Effectively_Volatile (Etype (Item_Id))
          then
             return Has_Enabled_Property (Etype (Item_Id), Property);