[PATCH] msvcp140: Implement _To_wide (v2).

[Stefan Dösinger]

Am 2017-05-26 um 13:17 schrieb Stefan Dösinger:
> +    return MultiByteToWideChar(CP_ACP, 0, src, -1, dst, strlen(src) + 1);
Do not commit this yet, there is another version coming. The maximum
length is limited to MAX_PATH, and Nikolai says the test randomly
crashes on his Windows.

It seems Microsoft lets interns write APIs nowadays.