[gcc r15-9804] ada: Fix glitch in handling of Atomic_Components on generic formal type

[Eric Botcazou]

https://gcc.gnu.org/g:2fd267be72dfb0dbaa422c21888a40e69173defa

commit r15-9804-g2fd267be72dfb0dbaa422c21888a40e69173defa
Author: Piotr Trojanek <trojanek@adacore.com>
Date:   Mon Mar 17 12:57:26 2025 +0100

    ada: Fix glitch in handling of Atomic_Components on generic formal type
    
    In Ada 2022 aspects Atomic_Components and Volatile_Components can be specified
    for a formal array type, but then they need to be set on the base type entity.
    Otherwise we get an assertion failure in debug build and wrong legality errors
    in production builds.
    
    gcc/ada/ChangeLog:
    
            * sem_prag.adb (Analyze_Pragma): If pragmas apply to a formal array
            type, then set the flags on the base type.

Diff:
---
 gcc/ada/sem_prag.adb | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/gcc/ada/sem_prag.adb b/gcc/ada/sem_prag.adb
index 621edc7725d8..17805c96fed3 100644
--- a/gcc/ada/sem_prag.adb
+++ b/gcc/ada/sem_prag.adb
@@ -14708,7 +14708,9 @@ package body Sem_Prag is
             then
                --  The flag is set on the base type, or on the object
 
-               if Nkind (D) = N_Full_Type_Declaration then
+               if Nkind (D) in N_Full_Type_Declaration
+                             | N_Formal_Type_Declaration
+               then
                   E := Base_Type (E);
                end if;