[Issue 16193] opApply() doesn't heap allocate closure

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=16193

--- Comment #10 from Walter Bright <bugzilla at digitalmars.com> ---
It's possible that was true briefly, but it would have been a regression in
itself because of its negative affect on legacy code.

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