Added simple script for building llc
Added simple script for building llc

This is meant to quickly get people up to speed when helping
out with the "BUG",
it will be more interesting when functionality for memory profiling/tracing is added.
This script can be deleted when the "BUG" is closed.

BUG= http://code.google.com/p/nativeclient/issues/detail?id=2545
TEST= manual
Review URL: https://chromiumcodereview.appspot.com/10562018

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@8953 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

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