usesuper::{NormalizedMutation, NormalizedSelect};/// Apply a deterministic, semantics-preserving cleanup pass.
////// This is the first rewrite pass used by optimizer tests and as a base
/// for future transformation passes.
pubfncleanup_select(select:&NormalizedSelect)-> NormalizedSelect{
select.cleaned()}/// Apply deterministic cleanup for supported mutation rewrites.
pubfncleanup_mutation(mutation:&NormalizedMutation)-> NormalizedMutation{
mutation.cleaned()}