Dmitry Timoshkov : dwrite/tests: Add some fallback tests for Segoe UI Symbol.

[Eric Pouech]

Hi Dmitry
+ hr = IDWriteFontFallback_MapCharacters(fallback, &analysissource, 0, 
1, NULL, NULL, DWRITE_FONT_WEIGHT_NORMAL,
> +                DWRITE_FONT_STYLE_NORMAL, DWRITE_FONT_STRETCH_NORMAL, &length, &font, &scale);
> +    todo_wine
> +        ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);
> +        if (hr != S_OK) continue;
would you mind not outdenting the todo_wine... it generates tons of 
FIXME with mingw's GCC11
TIA