Wrong type resolution of items imported via alias and shadowed with local items

[ironcev]

This example compiles, and shows that aliases LibE and LibS get resolved to the local items instead to the items imported from the library.

// lib.sw
library;

pub enum E { X: u8, }         // No `Y` variant.
pub struct S { pub x: u8, }   // No `y` field.

...

// main.sw
script;

mod lib;

use ::lib::E as LibE;
use ::lib::S as LibS;

enum E {
  X: u8,
  Y: u8,   // <--- Additional variant.
}

struct S {
  x: u8,
  y: u8,   // <--- Additional field.
}

fn main() {
  let _: LibE = E::Y(123);
  let _: LibS = S { x: 123, y: 123 };

  let _: LibE = LibE::Y(123);
  let _: LibS = LibS { x: 123, y: 123 };
}

Related to #5500.