[Issue 12223] __traits(getMember,...) needed for aliases

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=12223

--- Comment #4 from Dlang Bot <dlang-bot at dlang.rocks> ---
@rmanthorpe created dlang/dmd pull request #11442 "Issue 12223 -
__traits(getMember,...) needed for aliases" mentioning this issue:

- Issue 12223 - __traits(getMember,...) needed for aliases

  Add `__traits(child, p, c)` to interpret `c` with the `this` context set to
`p`.
  This is the opposite of `__traits(parent, c)`. `c` should be a symbol mising
it's
  `this` context, such an an alias to a member of `p`.

https://github.com/dlang/dmd/pull/11442

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