In from_parforstart, move the reduction code before the nested openmp check so that we can still form the statements that initialize any reduction variables and that they can be included in the output code.
In from_parforstart, move the reduction code before the nested openmp check so that
we can still form the statements that initialize any reduction variables and that they can be included in the output code.

JuliaPackageMirrors/ParallelAccelerator.jl,IntelLabs/ParallelAccelerator.jl,malekbr/julia-to-tiramisu