[Issue 9495] Win64 vararg issue when first argument is > 8 byte

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=9495

--- Comment #8 from yebblies <yebblies at gmail.com> ---
See https://github.com/D-Programming-Language/dmd/pull/4336

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