test/tint/expressions/type_ctor/mat4x3/explicit/identity/f32.wgsl

var<private> m = mat4x3(mat4x3<f32>(0.0f, 1.0f, 2.0f,
                                    3.0f, 4.0f, 5.0f,
                                    6.0f, 7.0f, 8.0f,
                                    9.0f, 10.0f, 11.0f));

fn f() -> mat4x3<f32> {
    let m_1 = mat4x3(m);
    return m_1;
}