test/tint/expressions/type_ctor/mat2x3/explicit/identity/f32.wgsl

let m = mat2x3(mat2x3<f32>(0.0f, 1.0f, 2.0f,
                           3.0f, 4.0f, 5.0f));

fn f() -> mat2x3<f32> {
    let m_1 = mat2x3(m);
    return m_1;
}