Recalculate stack frames after nacl-irt command.

gdb/nacl-manifest.c

 /* Handle Native Client manifest files.
 
    Copyright (C) 2011 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.
@@ skipping 328 matching lines @@
 static void
 nacl_irt_command (char *args, int from_tty)
 {
   if (args)
     {
       char *nacl_irt_filename;
       nacl_irt_filename = tilde_expand (args);
       symbol_file_add (nacl_irt_filename, from_tty ? SYMFILE_VERBOSE : 0,
                        NULL, OBJF_USERLOADED);
       xfree (nacl_irt_filename);
+      /* Recalculate frames.  */
+      reinit_frame_cache ();
     }
 }
 
 static struct observer *about_to_proceed_observer = NULL;
 
 static void
 about_to_proceed_hook ()
 {
   if (exec_bfd == NULL)
     {
@@ skipping 46 matching lines @@
 
   c = add_com ("nacl-irt", class_files, nacl_irt_command,
                _("Use FILE as Native Client IRT to be debugged."));
   set_cmd_completer (c, filename_completer);
 
   c = add_com ("nacl-manifest", class_files, nacl_manifest_command,
                _("Use FILE as Native Client manifest for the program"
                  " to be debugged."));
   set_cmd_completer (c, filename_completer);
 }