Update pnacl/DEPS to bring in merge to r172453

pnacl/DEPS

 vars = {
   "pnacl_binutils_rev": "453c266914e738071344256621e19cca3b39e17a",
-  "pnacl_llvm_rev": "8bdbdf71c987b7604a178c1ebabfab3d22c0e85b",
+  "pnacl_llvm_rev": "50bcd382991b721082fc0bfa6efa62488f23601a",
   "pnacl_gcc_rev": "e09efac3663fa23abf48941d4844e1876659b7c4",
 
   "glibc_rev": "ef989bae60d93e2906847b367becbd0e7f27679f",
   "newlib_rev": "6a104f495cf91387ecec5f5f87c6e12d345b204c",
   "pnacl_llvm_testsuite_rev": "20a163d6fa5a1d0a398792110c7ea5c48e44e600",
   "compiler_rt_rev": "cad11a9ea0008d18125e81beafc27271ee71926e",
   # clang_rev should be the first clang commit after the llvm commit from
   # which the local llvm is branched. Unfortunately because the llvm and
   # clang git repos are separate (even upstream), the same revision cannot
   # be used for both of them, the way it can with SVN.
-  "clang_rev": "c2cca2361aeafdf9170de2695b17d8bcd1c6f7db",
+  "clang_rev": "ed6355d56cbeb1cd1a77cc46e0a519af25523ccb",
   "nacl_base_readonly": "http://git.chromium.org/native_client",
   "nacl_base_readwrite": "ssh://gerrit.chromium.org:29418/native_client",
   "llvm_upstream_base": "http://llvm.org/git/",
 }
 
 deps = {
   "binutils":
     Var("nacl_base_readonly") + "/nacl-binutils.git@" + Var("pnacl_binutils_rev"),
   "llvm":
     Var("nacl_base_readonly") + "/pnacl-llvm.git@" + Var("pnacl_llvm_rev"),
   "gcc":
     Var("nacl_base_readonly") + "/pnacl-gcc.git@" + Var("pnacl_gcc_rev"),
   "glibc":
     Var("nacl_base_readonly") + "/nacl-glibc.git@" + Var("glibc_rev"),
   "llvm-test-suite":
     Var("nacl_base_readonly") + "/pnacl-llvm-testsuite.git@" + Var("pnacl_llvm_testsuite_rev"),
   "nacl-newlib":
     Var("nacl_base_readonly") + "/nacl-newlib.git@" + Var("newlib_rev"),
   "compiler-rt":
     Var("nacl_base_readonly") + "/pnacl-compiler-rt.git@" + Var("compiler_rt_rev"),
   "clang":
     Var("llvm_upstream_base") + "/clang.git@" + Var("clang_rev"),
 }
 
 skip_child_includes = [
   'git',
   'src',
 ]