[gcc r13-248] [Ada] Simplify call to overloaded Earlier_In_Extended_Unit

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

https://gcc.gnu.org/g:d5e6a22b54b0bfc78288c7ffb94ac6afad39ee7e

commit r13-248-gd5e6a22b54b0bfc78288c7ffb94ac6afad39ee7e
Author: Piotr Trojanek <trojanek@adacore.com>
Date:   Mon Jan 24 12:19:19 2022 +0100

    [Ada] Simplify call to overloaded Earlier_In_Extended_Unit
    
    We have two variants of Earlier_In_Extended_Unit that take either
    Node_Id or Source_Ptr values. The caller can simply use another variant
    and not explicitly convert parameters.
    
    Code cleanup; semantics is unaffected.
    
    gcc/ada/
    
            * sem_warn.adb (Check_Unset_Reference): Use variant of
            Earlier_In_Extended_Unit that calls Sloc internally.

Diff:
---
 gcc/ada/sem_warn.adb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/ada/sem_warn.adb b/gcc/ada/sem_warn.adb
index d1f2036e100..f86c2c71736 100644
--- a/gcc/ada/sem_warn.adb
+++ b/gcc/ada/sem_warn.adb
@@ -1915,7 +1915,7 @@ package body Sem_Warn is
                  and then (No (Unset_Reference (E))
                             or else
                               Earlier_In_Extended_Unit
-                                (Sloc (N), Sloc (Unset_Reference (E))))
+                                (N, Unset_Reference (E)))
                  and then not Has_Pragma_Unmodified_Check_Spec (E)
                  and then not Warnings_Off_Check_Spec (E)
                  and then not Has_Junk_Name (E)