[Issue 17759] struct that attempts to implicitly cast away const causes segfault

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=17759

--- Comment #3 from Steven Schveighoffer <schveiguy at yahoo.com> ---
Hm... so alias this resolution needs some kind of memoization to prevent
infinite expansion. Interesting.

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