[COMMITTED 19/30] ada: Fix list of attributes defined by Ada 2012

[Marc Poulhiès]

From: Piotr Trojanek <troja...@adacore.com>

Recognize references to attributes Old, Overlaps_Storage and Result as
language-defined in Ada 2012 and implementation-defined in earlier
versions of Ada. Other attributes introduced by Ada 2012 RM are
correctly categorized.

This change only affects code with restriction
No_Implementation_Attributes.

gcc/ada/

        * sem_attr.adb (Attribute_12): Add attributes Old,
        Overlaps_Storage and Result.

Tested on x86_64-pc-linux-gnu, committed on master.

---
 gcc/ada/sem_attr.adb | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/gcc/ada/sem_attr.adb b/gcc/ada/sem_attr.adb
index 414224e86b6..df52229b6aa 100644
--- a/gcc/ada/sem_attr.adb
+++ b/gcc/ada/sem_attr.adb
@@ -170,7 +170,10 @@ package body Sem_Attr is
      (Attribute_First_Valid                  |
       Attribute_Has_Same_Storage             |
       Attribute_Last_Valid                   |
-      Attribute_Max_Alignment_For_Allocation => True,
+      Attribute_Max_Alignment_For_Allocation |
+      Attribute_Old                          |
+      Attribute_Overlaps_Storage             |
+      Attribute_Result                       => True,
       others                                 => False);
 
    --  The following array is the list of attributes defined in the Ada 2022
-- 
2.43.2