Re: [PATCH v3 0/4] MR54: vkd3d-shader/hlsl: Initialize static variables to 0 by default.

[Giovanni Mascellani (＠giomasce)]

This is accepted by native, but fails to compile with ours:
```hlsl
static struct
{
    float4 x;
    float4 y;
} x;

float4 main() : sv_target
{
    return 0;
}
```

The error is:
```
shader_runner:684:Section [pixel shader], line 115: Test failed: Got unexpected hr 0x80004005.
shader_runner:697:Section [pixel shader], line 115: <anonymous>:5:3: E5002: Can't implicitly convert from uint to <anonymous struct>.
```

It's ok if you consider this out of scope for this MR, but please add a test showing the todo.