[Issue 20992] Missing symbols in winapi bindings, related to locals

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=20992

--- Comment #1 from Basile-z <b2.temp at gmx.com> ---
user has fixed this by declaring

---
extern (Windows) {
int LCIDToLocaleName(LCID, LPWSTR, int, DWORD);
enum uint LOCALE_NAME_MAX_LENGTH = 0x55;
enum uint LOCALE_ALLOW_NEUTRAL_NAMES = 0x08000000;
}
---

 so this could be put in core bindings.

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