[Issue 23551] Error messages for use of array literals in @nogc code should be improved`

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=23551

Grim Maple <grimmaple95 at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |grimmaple95 at gmail.com

--- Comment #3 from Grim Maple <grimmaple95 at gmail.com> ---
(In reply to Dennis from comment #2)
> What is the expected message?

The error itself targets this line
```
auto b = x[0..1];
```

which isn't what causes the issue. It's this line
```
enum x = [1,4];
```
which prevents slicing from being @nogc compatible. If changed to static
immutable x = [1,4]; code compiles fine

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