https://issues.dlang.org/show_bug.cgi?id=24330

--- Comment #1 from Dennis <dkorpel@live.nl> ---
Related issue:

```D
void f(int[] b)() { }

void main()
{
    enum dstring s = (""d ~ cast(dchar) 0xFFFF_FFFF);
    f!(cast(int[]) s ~ []); // works
    f!(cast(int[]) s); // invalid UCS-32 char \Uffffffff
}
```

Fails because it tries to mangle the int[] as a string because it's a StringExp.

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https://issues.dlang.org/show_bug.cgi?id=24330

--- Comment #2 from dlangBugzillaToGithub <robert.schadek@posteo.de> ---
THIS ISSUE HAS BEEN MOVED TO GITHUB

https://github.com/dlang/dmd/issues/20379

DO NOT COMMENT HERE ANYMORE, NOBODY WILL SEE IT, THIS ISSUE HAS BEEN MOVED TO GITHUB

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