[Issue 22868] __traits(parameters) returns parameters of delegate instead of function

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=22868

--- Comment #2 from Dlang Bot <dlang-bot at dlang.rocks> ---
@MoonlightSentinel created dlang/dmd pull request #13804 "alias parameters"
fixing this issue:

- Fix 22868 - Let __traits(parameters) see past opApply delegates

  Ensure that `__traits(parameters)` consistently returns the parameters
  of the enclosing function and instead of the parameters of the
  `opApply` delegate (leaking an implementation detail).

  Also added a bunch of tests - the parts hidden by `version (Fixed)`
  fail due to another bug.

https://github.com/dlang/dmd/pull/13804

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