fix: Array casts

Problem analogous to #2450.
For example, here we generate invalid wgsl:

  it('...', () => {
    const A = d.arrayOf(d.struct({ p: d.u32 }), 4);
    const B = d.arrayOf(d.struct({ p: d.f32 }), 4);

    const helper = tgpu.fn([B])((b) => {
      'use gpu';
    });

    const main = tgpu.fn([])(() => {
      'use gpu';
      const a = A();
      helper(a);
    });

    expect(tgpu.resolve([main])).toMatchInlineSnapshot(`
      "struct item {
        p: u32,
      }

      struct item_1 {
        p: f32,
      }

      fn helper(b: array<item_1, 4>) {

      }

      fn main() {
        let a = array<item, 4>();
        helper(a);
      }"
    `);
  });

Start by comparing the inline reproduction with issue #2450, then trace d.arrayOf, tgpu.fn, and tgpu.resolve to find where array argument types are handled. The work is done when the reproduction no longer generates an invalid WGSL call and the corresponding inline snapshot passes.