use borrow_check::borrow_set::BorrowSet;
use borrow_check::location::LocationTable;
-use borrow_check::nll::constraint_set::{ConstraintSet, OutlivesConstraint};
+use borrow_check::nll::constraints::{ConstraintSet, OutlivesConstraint};
use borrow_check::nll::facts::AllFacts;
use borrow_check::nll::region_infer::{ClosureRegionRequirementsExt, TypeTest};
use borrow_check::nll::universal_regions::UniversalRegions;