pub fn super_lattice_tys<'a, 'tcx, L>(
    this: &mut L,
    a: Ty<'tcx>,
    b: Ty<'tcx>
) -> Result<Ty<'tcx>, TypeError<'tcx>>where
    'tcx: 'a,
    L: LatticeDir<'a, 'tcx>,
Expand description

Relates two types using a given lattice.