Function rustc_mir::transform::promote_consts::collect_temps_and_candidates

pub fn collect_temps_and_candidates<'mir, 'tcx>(
    ccx: &ConstCx<'mir, 'tcx>, 
    rpo: &mut ReversePostorder<'_, 'tcx>
) -> (IndexVec<Local, TempState>, Vec<Candidate>)