[Issue 19345] std.concurrency does not work with structs of const value type

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=19345

--- Comment #6 from Dlang Bot <dlang-bot at dlang.rocks> ---
@tom-tan created dlang/phobos pull request #7661 "Fix issue 13930, 19345 - Fix
`receiveOnly` for non-assignable types" fixing this issue:

- Fix issue 13930, 19345 - Fix receiveOnly for non-assignable types

https://github.com/dlang/phobos/pull/7661

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