[gcc r13-4265] diagnostics: Fix selftest ICE in certain locales [PR107722]

[Jakub Jelinek <jakub@gcc.gnu.org>]

https://gcc.gnu.org/g:d601708870ad8dc3ef935e440bf03394891d42e2

commit r13-4265-gd601708870ad8dc3ef935e440bf03394891d42e2
Author: Jakub Jelinek <jakub@redhat.com>
Date:   Wed Nov 23 14:43:48 2022 +0100

    diagnostics: Fix selftest ICE in certain locales [PR107722]
    
    As reported in the PR, since special_fname_builtin () call has been
    introduced, the diagnostics code compares filename against _("<built-in>")
    rather than "<built-in>", which means that if self tests are performed
    with the string being translated, one self-test fails.
    The following patch fixes that.
    
    2022-11-23  Jakub Jelinek  <jakub@redhat.com>
    
            PR bootstrap/107722
            * diagnostic.cc (test_diagnostic_get_location_text): Test
            special_fname_builtin () rather than "<built-in>" and expect
            special_fname_builtin () concatenated with ":" for it.

Diff:
---
 gcc/diagnostic.cc | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/gcc/diagnostic.cc b/gcc/diagnostic.cc
index 7c7ee6da746..a9562a815b1 100644
--- a/gcc/diagnostic.cc
+++ b/gcc/diagnostic.cc
@@ -2593,7 +2593,10 @@ test_diagnostic_get_location_text ()
   const char *old_progname = progname;
   progname = "PROGNAME";
   assert_location_text ("PROGNAME:", NULL, 0, 0, true);
-  assert_location_text ("<built-in>:", "<built-in>", 42, 10, true);
+  char *built_in_colon = concat (special_fname_builtin (), ":", (char *) 0);
+  assert_location_text (built_in_colon, special_fname_builtin (),
+			42, 10, true);
+  free (built_in_colon);
   assert_location_text ("foo.c:42:10:", "foo.c", 42, 10, true);
   assert_location_text ("foo.c:42:9:", "foo.c", 42, 10, true, 0);
   assert_location_text ("foo.c:42:1010:", "foo.c", 42, 10, true, 1001);