d3d9/tests: Add test for surface format conversion

[Henri Verbeet]

On 5 July 2010 21:37, Stefan Dösinger <stefandoesinger at gmx.at> wrote:
> Am Montag 05 Juli 2010 21:23:07 schrieb Henri Verbeet:
>> +        hr = IDirect3DDevice9_StretchRect(device, surf_offscreen64, NULL,
> surf_offscreen_dest64, NULL, 0);
>> +        todo_wine ok( hr == D3DERR_INVALIDCALL, "Conversion from %s to %s
> succeeded, shouldn't happen (todo)"
>> +            "(code: %08x)\n", "D3DFMT_R32F", "D3DFMT_R16F", hr);

I didn't actually write that.