[gcc r12-3795] [Ada] Fix imprecise wording for error on scalar storage order

[Pierre-Marie de Rodat]

https://gcc.gnu.org/g:c5ff859dc01958f39ba77de6421d774171e3ea09

commit r12-3795-gc5ff859dc01958f39ba77de6421d774171e3ea09
Author: Eric Botcazou <ebotcazou@adacore.com>
Date:   Tue Jul 13 11:23:38 2021 +0200

    [Ada] Fix imprecise wording for error on scalar storage order
    
    gcc/ada/
    
            * freeze.adb (Check_Component_Storage_Order): Give a specific error
            message for non-byte-aligned component in the packed case.  Replace
            "composite" with "record" in both cases.

Diff:
---
 gcc/ada/freeze.adb | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/gcc/ada/freeze.adb b/gcc/ada/freeze.adb
index 15ce832b1d2..3f57bc50fea 100644
--- a/gcc/ada/freeze.adb
+++ b/gcc/ada/freeze.adb
@@ -1352,9 +1352,15 @@ package body Freeze is
             elsif Is_Record_Type (Encl_Base)
               and then not Comp_Byte_Aligned
             then
-               Error_Msg_N
-                 ("type of non-byte-aligned component must have same scalar "
-                  & "storage order as enclosing composite", Err_Node);
+               if Present (Component_Clause (Comp)) then
+                  Error_Msg_N
+                    ("type of non-byte-aligned component must have same scalar"
+                     & " storage order as enclosing record", Err_Node);
+               else
+                  Error_Msg_N
+                    ("type of packed component must have same scalar"
+                     & " storage order as enclosing record", Err_Node);
+               end if;
 
             --  Warn if specified only for the outer composite