Today's compiler error message

[Dennis]

On Wednesday, 12 July 2023 at 15:53:39 UTC, IchorDev wrote:
> DMD and LDC2, however, decided that the real problem was an 
> unmarked lambda placed within a mixin statement at module-scope:


Do you have a test case that reproduces it? I tried:

```D
alias y = mixin("``");
```

But that gives the "alias `y` cannot alias an expression `""`" 
error.