Bump toolchain DEPs to pull in pnacl-ld fix, and turn on

tests/pnacl_client_translator/nacl.scons

 # -*- python -*-
 # Copyright (c) 2011 The Native Client Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import platform
 import re        # For StripArchFromLDCommand hack.
 import os.path   # For getting basenames.
 
 Import('env')
 
 # Browser tests for the pnacl translator.
 
 # TODO(jvoung): allow pnacl to reuse normal NaCl browser tests.
 if not env.Bit('bitcode'):
   Return()
 
-# With current scons native lib lookups, we can't build the pexe
-# unless platform=x86-32.
-# http://code.google.com/p/nativeclient/issues/detail?id=2028
-if not env.Bit('target_x86_32'):
-  Return()
-
 #----------------------------------------------------------------------
 # Get list of translator files
 
 # Seriously, we need to make up our minds about whether or not we
 # want a dash in the ISA string. My vote is for keeping the dash,
 # since that is what the plugin will respond with.
 def DashFreeArch(arch):
   return arch.replace('-', '')
 
 # Sigh, cases where we use the dash.
@@ skipping 167 matching lines @@
     args=['--enable_experimental_js'])
 
 # Make sure the files are actually staged when this test runs.
 env.Depends(node, replicates_toolchain + replicates_page)
 
 bitcode_env.AddNodeToTestSuite(node,
                                ['chrome_browser_tests'],
                                'run_pnacl_srpc_hw2_browser_test',
                                is_broken=(
                                    bitcode_env.PPAPIBrowserTesterIsBroken()))