[binutils-gdb] Style some error messages in source.c

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=b7feb63aa7d1bf44beba5fec756069133a09c46f

commit b7feb63aa7d1bf44beba5fec756069133a09c46f
Author: Tom Tromey <[email protected]>
Date:   Thu Jan 15 13:24:14 2026 -0700

    Style some error messages in source.c
    
    This applies some CLI styling to error messages in source.c.

Diff:
---
 gdb/source.c                     | 9 ++++++---
 gdb/testsuite/gdb.base/style.exp | 4 ++++
 2 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/gdb/source.c b/gdb/source.c
index a4bced1296f..6f8afb560d2 100644
--- a/gdb/source.c
+++ b/gdb/source.c
@@ -256,7 +256,8 @@ set_default_source_symtab_and_line (void)
 {
   if (!current_program_space->has_full_symbols ()
       && !current_program_space->has_partial_symbols ())
-    error (_("No symbol table is loaded.  Use the \"file\" command."));
+    error (_("No symbol table is loaded.  Use the \"%ps\" command."),
+	   styled_string (command_style.style (), "file"));
 
   /* Pull in a current source symtab if necessary.  */
   current_source_location *loc = get_source_location (current_program_space);
@@ -1343,8 +1344,10 @@ print_source_lines_base (struct symtab *s, int line, int stopline,
   if (!g_source_cache.get_source_lines (s, line, stopline - 1, &lines))
     {
       std::optional<int> last_lineno = last_symtab_line (s);
-      error (_("Line number %d out of range; %s has %d lines."),
-	     line, symtab_to_filename_for_display (s),
+      error (_("Line number %ps out of range; %ps has %d lines."),
+	     styled_string (line_number_style.style (), plongest (line)),
+	     styled_string (file_name_style.style (),
+			    symtab_to_filename_for_display (s)),
 	     !last_lineno.has_value () ? 0 : last_lineno.value ());
     }
 
diff --git a/gdb/testsuite/gdb.base/style.exp b/gdb/testsuite/gdb.base/style.exp
index 040e399e72d..a12f6188479 100644
--- a/gdb/testsuite/gdb.base/style.exp
+++ b/gdb/testsuite/gdb.base/style.exp
@@ -1080,6 +1080,10 @@ proc test_logging_styling {} {
     gdb_test "set logging enabled off" \
 	"Done logging to [style $filename file]\\." \
 	"filename styled when logging disabled"
+
+    # Test that error messages are styled.
+    gdb_test "list" \
+	"No symbol table is loaded\\.  Use the \"[style file command]\" command\\."
 }
 
 # Check to see if the Python styling of disassembler output is