Re: [PATCH v6 0/2] MR76: vkd3d-shader/hlsl: Support rsqrt() and distance() intrinsics.

[Francisco Casas (＠fcasas)]

Currently, `distance()` fails when passing `int` parameters:
```
int a, b;

float4 main() : sv_target
{
    return distance(a, b);
}
```
```
vkd3d/libs/vkd3d-shader/hlsl_sm4.c:1800: write_sm4_expr: Assertion `type_is_float(dst_type)' failed.
Aborted (core dumped)
```

it is worth noting that `add_binary_arithmetic_expr()` results in a value of the common type (which is `int` if both arguments are `int`).