[Issue 13796] A simple "array head const" struct for Phobos

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=13796

--- Comment #1 from github-bugzilla at puremagic.com ---
Commit pushed to master at https://github.com/dlang/phobos

https://github.com/dlang/phobos/commit/415d573a3c8688396f0f46643bd1fedc923620dc
Add std.experimental.typecons.HeadConst - fix issue 13796

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