test/tint/expressions/type_conv/mat2x3/var/f16-f32.wgsl

enable f16;
var<private> u = mat2x3<f16>(1.0h, 2.0h, 3.0h,
                             4.0h, 5.0h, 6.0h);
fn f() {
    var v : mat2x3<f32> = mat2x3<f32>(u);
}