[LLVMdev] JIT: Inlining introduces intrinsics.

[Óscar Fuentes]

If I activate the Inliner pass:

    Builder.Inliner = createFunctionInliningPass(Threshold);

this is the result:

LLVM ERROR: Program used external function 'llvm.lifetime.start' which could not be resolved!

It happens on almost all my test cases, even at -O0.

This JIT compiler does the same as `opt' wrt optimization passes. I'm
using a LLVM snapshot from approx 4 months ago.