[gcc r16-1362] ada: Add assertion on expanded code in particular case

[Marc Poulhies via Gcc-cvs]

https://gcc.gnu.org/g:0bb1e0c53cc25646c0a5feb1ba0ae797f9b5f424

commit r16-1362-g0bb1e0c53cc25646c0a5feb1ba0ae797f9b5f424
Author: Ronan Desplanques <desplanq...@adacore.com>
Date:   Mon Mar 17 17:18:26 2025 +0100

    ada: Add assertion on expanded code in particular case
    
    This patch adds an assertion that checks that expanded code does not
    contain erroneous access subtype definitions.
    
    gcc/ada/ChangeLog:
    
            * sem_ch3.adb (Process_Subtype): Add assertion.

Diff:
---
 gcc/ada/sem_ch3.adb | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/gcc/ada/sem_ch3.adb b/gcc/ada/sem_ch3.adb
index 0c262aa40f36..ca500bc1e152 100644
--- a/gcc/ada/sem_ch3.adb
+++ b/gcc/ada/sem_ch3.adb
@@ -22725,6 +22725,8 @@ package body Sem_Ch3 is
                      Error_Msg_N
                        ("constraint on class-wide type ignored??",
                         Constraint (S));
+                  else
+                     pragma Assert (False);
                   end if;
 
                   if Nkind (P) = N_Subtype_Declaration then