[Issue 15624] opApply with @safe and @system variants can't be used with foreach syntax

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=15624

--- Comment #2 from Walter Bright <bugzilla at digitalmars.com> ---
https://github.com/dlang/dmd/pull/8047

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