[Issue 21764] checkaction=context doesn't work for empty tuples

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=21764

Dlang Bot <dlang-bot at dlang.rocks> changed:

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--- Comment #1 from Dlang Bot <dlang-bot at dlang.rocks> ---
@MoonlightSentinel created dlang/druntime pull request #3411 "Fix 21764 -
checkaction=context doesn't work for empty tuples" fixing this issue:

- Fix 21764 - checkaction=context doesn't work for empty tuples

  The template constraint was intended to avoid collisions with the
  unary hook but also prevented instances for zero elements.

  `combine` was adapted to print empty arrays as `()`.

https://github.com/dlang/druntime/pull/3411

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