[gcc r15-1683] ada: Bug using user defined string literals with interpolated strings

[Marc Poulhi?s]

https://gcc.gnu.org/g:089bb078e8663f72292f2edc63f48c304dcb1ccc

commit r15-1683-g089bb078e8663f72292f2edc63f48c304dcb1ccc
Author: Javier Miranda <miranda@adacore.com>
Date:   Thu Jun 6 11:48:02 2024 +0000

    ada: Bug using user defined string literals with interpolated strings
    
    The frontend rejects the use of user defined string literals
    using interpolated strings.
    
    gcc/ada/
    
            * sem_res.adb (Has_Applicable_User_Defined_Literal): Add missing
            support for interpolated strings.

Diff:
---
 gcc/ada/sem_res.adb | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/gcc/ada/sem_res.adb b/gcc/ada/sem_res.adb
index a0dd1f7962b..72bba1f97af 100644
--- a/gcc/ada/sem_res.adb
+++ b/gcc/ada/sem_res.adb
@@ -467,7 +467,7 @@ package body Sem_Res is
       Literal_Aspect_Map :
         constant array (N_Numeric_Or_String_Literal) of Aspect_Id :=
           (N_Integer_Literal             => Aspect_Integer_Literal,
-           N_Interpolated_String_Literal => No_Aspect,
+           N_Interpolated_String_Literal => Aspect_String_Literal,
            N_Real_Literal                => Aspect_Real_Literal,
            N_String_Literal              => Aspect_String_Literal);
 
@@ -487,6 +487,7 @@ package body Sem_Res is
 
    begin
       if (Nkind (N) in N_Numeric_Or_String_Literal
+                     | N_Interpolated_String_Literal
            and then Present
             (Find_Aspect (Typ, Literal_Aspect_Map (Nkind (N)))))
         or else
@@ -563,6 +564,10 @@ package body Sem_Res is
             Param1 := Make_String_Literal (Loc, Strval (N));
             Params := New_List (Param1);
 
+         elsif Nkind (N) = N_Interpolated_String_Literal then
+            Param1 := New_Copy_Tree (N);
+            Params := New_List (Param1);
+
          else
             Param1 :=
               Make_String_Literal