Roll llvm stable rev to pull in calling convention rewrites
Roll llvm stable rev to pull in calling convention rewrites

BUG= http://code.google.com/p/nativeclient/issues/detail?id=2986
Review URL: https://codereview.chromium.org/10917305

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@9771 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

sbc100/native_client,nacl-webkit/native_client,nacl-webkit/native_client,sbc100/native_client,sbc100/native_client,nacl-webkit/native_client,sbc100/native_client,sbc100/native_client,nacl-webkit/native_client,nacl-webkit/native_client,sbc100/native_client