Function monomorphized_mir_body_for_closure_query 

pub fn monomorphized_mir_body_for_closure_query<'db>(
    db: &'db (dyn HirDatabase + 'static),
    closure: InternedClosureId,
    subst: GenericArgs<'db>,
    trait_env: ParamEnvAndCrate<'db>,
) -> Result<Arc<MirBody<'db>>, MirLowerError<'db>>