[Issue 6405] @safe doesn't work with multidimensional typesafe variadic parameters

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=6405

--- Comment #3 from hsteoh at quickfur.ath.cx ---
Test case PR: https://github.com/D-Programming-Language/dmd/pull/3974

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