[committed] bootstrap: fix failing diagnostic selftest on Windows [PR98696]

[David Malcolm via Gcc-patches]

In one of the selftests in g:f10960558540636800cf5d3d6355969621fbc17e
I didn't consider that paths can contain backslashes, which happens
for the tempfiles on Windows hosts.

Successfully bootstrapped & regrtested on x86_64-pc-linux-gnu.
Confirmed by the reporter as fixing the issue on Windows.

Pushed as r11-6730-ga3128bf01289a243a9e0ebb4e34c23bcb04cb938.

gcc/ChangeLog:
        PR bootstrap/98696
        * diagnostic.c
        (selftest::test_print_parseable_fixits_bytes_vs_display_columns):
        Escape the tempfile name when constructing the expected output.
---
 gcc/diagnostic.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/gcc/diagnostic.c b/gcc/diagnostic.c
index 7d65ac7379f..11ac9064d42 100644
--- a/gcc/diagnostic.c
+++ b/gcc/diagnostic.c
@@ -2155,7 +2155,12 @@ test_print_parseable_fixits_bytes_vs_display_columns ()
   where.m_finish = linemap_position_for_column (line_table, 17);
   richloc.add_fixit_replace (where, "color");
 
-  const int buf_len = strlen (fname) + 100;
+  /* Escape fname.  */
+  pretty_printer tmp_pp;
+  print_escaped_string (&tmp_pp, fname);
+  char *escaped_fname = xstrdup (pp_formatted_text (&tmp_pp));
+
+  const int buf_len = strlen (escaped_fname) + 100;
   char *const expected = XNEWVEC (char, buf_len);
 
   {
@@ -2163,7 +2168,7 @@ test_print_parseable_fixits_bytes_vs_display_columns ()
     print_parseable_fixits (&pp, &richloc, DIAGNOSTICS_COLUMN_UNIT_BYTE,
                            tabstop);
     snprintf (expected, buf_len,
-             "fix-it:\"%s\":{1:12-1:18}:\"color\"\n", fname);
+             "fix-it:%s:{1:12-1:18}:\"color\"\n", escaped_fname);
     ASSERT_STREQ (expected, pp_formatted_text (&pp));
   }
   {
@@ -2171,11 +2176,12 @@ test_print_parseable_fixits_bytes_vs_display_columns ()
     print_parseable_fixits (&pp, &richloc, DIAGNOSTICS_COLUMN_UNIT_DISPLAY,
                            tabstop);
     snprintf (expected, buf_len,
-             "fix-it:\"%s\":{1:10-1:16}:\"color\"\n", fname);
+             "fix-it:%s:{1:10-1:16}:\"color\"\n", escaped_fname);
     ASSERT_STREQ (expected, pp_formatted_text (&pp));
   }
 
   XDELETEVEC (expected);
+  free (escaped_fname);
 }
 
 /* Verify that
-- 
2.26.2