Merge GDB 7.5.1

gdb/testsuite/gdb.base/call-sc.c

 /* This testcase is part of GDB, the GNU debugger.
 
    Copyright 2004, 2007-2012 Free Software Foundation, Inc.
 
    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.
 
    This program is distributed in the hope that it will be useful,
@@ skipping 40 matching lines @@
   L = foo;
 }
 
 zed ()
 {
   L = 'Z';
 }
 
 int main()
 {
-#ifdef usestubs
-  set_debug_traps();
-  breakpoint();
-#endif
   int i;
 
   Fun(foo);     
 
   /* An infinite loop that first clears all the variables and then
      calls the function.  This "hack" is to make re-testing easier -
      "advance fun" is guaranteed to have always been preceded by a
      global variable clearing zed call.  */
 
   zed ();
   while (1)
     {
       L = fun ();       
       zed ();
     }
 
   return 0;
 }