[binutils] Bump binutils to 2.20.1

binutils/ld/testsuite/ld-powerpc/aix52.exp

 # Expect script for AIX 5.2+ tests
 #   Copyright 2009 Free Software Foundation
 #
 # This file is part of the GNU Binutils.
 #
 # 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 178 matching lines @@
 
     {"Line number test 1 (discard locals)" "-e.main -x"
      "" {aix-lineno-1.s}
      {{objdump -dS aix-lineno-1b.dd} {nm {} aix-lineno-1b.nd}}
      "aix-lineno-1b.exe"}
 
     {"Relocatable test 1" "-r"
      "" {aix-rel-1.s}
      {{objdump -hr aix-rel-1.od}} "aix-rel-1.ro"}
 
+    {".ref test 1" "-efoo1"
+     "" {aix-ref-1.s}
+     {{objdump -dr aix-ref-1-SIZE.od}}
+     "aix-ref-1"}
+
     {"Weak test 1 (rel)" "-r"
      "" {aix-weak-1a.s aix-weak-1b.s}
      {{nm {} aix-weak-1-rel.nd} {objdump -h aix-weak-1-rel.hd}}
      "aix-weak-1.o"}
 
     {"Weak test 1 (shared, nogc)" "-shared -bE:aix-weak-1.ex -bnogc"
      "" {aix-weak-1a.s aix-weak-1b.s}
      {{nm {} aix-weak-1-dso.nd} {objdump -h aix-weak-1-dso.hd}
       {nm -D aix-weak-1-dso.dnd}}
      "aix-weak-1-nogc.so"}
@@ skipping 42 matching lines @@
         run_aix_test 64 $name $ldopts $asopts $sources $tools $output
     }
 }
 
 run_dump_test "aix-glink-1-32"
 run_dump_test "aix-glink-1-64"
 run_dump_test "aix-glink-3-32"
 run_dump_test "aix-glink-3-64"
 run_dump_test "aix-weak-3-32"
 run_dump_test "aix-weak-3-64"