[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 #5 from Dlang Bot <dlang-bot at dlang.rocks> ---
dlang/phobos pull request #7657 "Revert "Fix issue 13930, 19345 - Fix
`receiveOnly` for non-assignable types "" was merged into master:

- 756242350896019ffc7a7cbe05e838538a559f5a by Mathias LANG:
  Revert "Fix issue 13930, 19345 - Fix receiveOnly for non-assignable types"

  This reverts commit 4f4fef19400ff85eb4699d569b02b21299b254cc.

https://github.com/dlang/phobos/pull/7657

--