[Issue 6842] Can't use alias of instance member

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=6842

Nick Treleaven <nick at geany.org> changed:

           What    |Removed                     |Added
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                 CC|                            |nick at geany.org

--- Comment #11 from Nick Treleaven <nick at geany.org> ---
> Foo foo;
> alias foo.a b;

For the next edition, this is an error:
https://dlang.org/spec/legacy#alias-instance-member

Added in https://github.com/dlang/dmd/pull/15863.
Refinement: https://github.com/dlang/dmd/pull/16813.

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