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

[via Digitalmars-d-bugs]

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

--- Comment #12 from Walter Bright <bugzilla at digitalmars.com> ---
(In reply to Walter Bright from comment #11)
> https://github.com/dlang/dmd/pull/6197

I did this before the other comments were posted. Have to think about this some
more based on those comments.

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