[Issue 17635] [REG 2.066.0] cannot convert unique immutable(int)** to immutable

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=17635

--- Comment #4 from Walter Bright <bugzilla at digitalmars.com> ---
Bug introduced by:

https://github.com/dlang/dmd/commit/f3b5817a3542f4fa4eb4a6e70658854e0d8e4aa3#diff-43282ebf5a2de5fdbcb3b5083ddf949dR3127

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