+2013-01-21 Tom Tromey <tromey@redhat.com>
+
+ * buildsym.c (patch_subfile_names): Use set_last_source_file.
+ (start_symtab): Make 'name' and 'dirname' const. Use
+ set_last_source_file.
+ (restart_symtab, reset_symtab_globals): Use set_last_source_file.
+ (last_source_file): Define. Now static.
+ (set_last_source_file, get_last_source_file): New functions.
+ * buildsym.h (last_source_file): Don't declare.
+ (start_symtab): Update.
+ (set_last_source_file, get_last_source_file): Declare.
+ * coffread.c (complete_symtab): Use set_last_source_file.
+ (coff_end_symtab): Likewise.
+ (coff_symtab_read): Use set_last_source_file, get_last_source_file.
+ * dbxread.c (read_dbx_symtab, read_ofile_symtab): Use
+ set_last_source_file.
+ (process_one_symbol): Use get_last_source_file.
+ * mdebugread.c (parse_partial_symbols): Use set_last_source_file.
+ (psymtab_to_symtab_1): Use get_last_source_file.
+ * xcoffread.c (process_linenos): Use get_last_source_file.
+ (complete_symtab): Use set_last_source_file.
+ (read_xcoff_symtab): Use set_last_source_file, get_last_source_file.
+ (scan_xcoff_symtab): Use set_last_source_file.
+