[Issue 12666] @nogc std.array.front, popFront, and more

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=12666

--- Comment #4 from github-bugzilla at puremagic.com ---
Commit pushed to master at https://github.com/D-Programming-Language/phobos

https://github.com/D-Programming-Language/phobos/commit/0842fc7841b9c3db558681717c2d8b4da1479ce6
@nogc for std.range.primitives.{empty,save,popFront,popBack,front,back}

Excluding the UTF-decoding variants, because those throw GC allocated
exceptions.

Makes sure that issue 12666 - "@nogc std.array.front, popFront, and more"
stays fixed.

--