[gcc r13-1680] [Ada] Revert recent change in debug info for vector array types

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

https://gcc.gnu.org/g:351659f8dc80f1faaefae9fec2eab30c24ff282d

commit r13-1680-g351659f8dc80f1faaefae9fec2eab30c24ff282d
Author: Eric Botcazou <ebotcazou@adacore.com>
Date:   Wed Jun 29 21:44:35 2022 +0200

    [Ada] Revert recent change in debug info for vector array types
    
    It lost too much useful information.
    
    gcc/ada/
    
            * gcc-interface/decl.cc (gnat_to_gnu_entity): Do not set the debug
            type for vector types.

Diff:
---
 gcc/ada/gcc-interface/decl.cc | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/gcc/ada/gcc-interface/decl.cc b/gcc/ada/gcc-interface/decl.cc
index 217414312c7..96ea13e43d1 100644
--- a/gcc/ada/gcc-interface/decl.cc
+++ b/gcc/ada/gcc-interface/decl.cc
@@ -4785,14 +4785,6 @@ gnat_to_gnu_entity (Entity_Id gnat_entity, tree gnu_expr, bool definition)
       else
 	gnu_decl = create_type_decl (gnu_entity_name, gnu_type, artificial_p,
 				     debug_info_p, gnat_entity);
-
-      /* For vector types, make the representative array the debug type.  */
-      if (VECTOR_TYPE_P (gnu_type))
-	{
-	  tree rep = TYPE_REPRESENTATIVE_ARRAY (gnu_type);
-	  TYPE_NAME (rep) = DECL_NAME (gnu_decl);
-	  SET_TYPE_DEBUG_TYPE (gnu_type, rep);
-	}
     }
 
   /* If we haven't already, associate the ..._DECL node that we just made with