[Issue 15862] Functions that return types with mutable indirections should be weakly pure, not strongly pure

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=15862

--- Comment #18 from Dlang Bot <dlang-bot at dlang.rocks> ---
dlang/phobos pull request #8509 "Remove uses of 'in' on extern(C) functions"
was merged into master:

- 501a3ab35a7b6f826fbf08f3f5eb2bcc96b71202 by Geod24:
  std.typecons: Remove workaround for fixed issue 15862

https://github.com/dlang/phobos/pull/8509

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