Re: [PATCH v2 0/1] MR336: vkd3d-shader/hlsl: Fix float modulus for vector arguments.

[Giovanni Mascellani (＠giomasce)]

Given that `hlsl_add_conditional()` is also used in `lower_int_division()` and `lower_int_modulus()`, which likely have the same problem, shouldn't we rather fix `hlsl_add_conditional()` instead?

Also, please add the corresponding test in `arithmetic-float-uniform.shader_test` too:
```c
[pixel shader]
float4 x = {5.0, -42.1, 4.0, 45.0};
float4 y = {15.0, -5.0, 4.1, 5.0};

float4 main() : sv_target
{
    return x % y;
}

[test]
draw quad
probe all rgba (5.0, -2.1, 4.0, 0.0) 4
```