NEO will be querying FCL for preferrerd IR
(intermediate representation) instead of
using llvm bc.
Change-Id: I98316b5623557a9651da2a4c5e610ab26421c491
use this variable in tests as it is set once in main.cpp
create function to get binary kernel filename
Change-Id: Ibf7b4c2d390caefda4a5d7fc4667006e7f2edde8