error: Vector lane count must be a positive compile-time integer constant
  --> examples/1502-vectors-runtime-lane-not-const.sx:14:16
   |
14 |     v : Vector(lanes(), f32) = ---;
   |                ^^^^^^^

error: field 'x' not found on type 'unresolved'
  --> examples/1502-vectors-runtime-lane-not-const.sx:15:32
   |
15 |     print("unreachable: {}\n", v.x);
   |                                ^^^