Confirm: D escapes auto ref similar to Go language

[Nick Treleaven]

On Sunday, 24 August 2025 at 15:29:01 UTC, Steven Schveighoffer 
wrote:
>> ```
>> import std.stdio;
>>
>> void main() {
>>     string * ptrSum = &parenthesized("2 + 3");
>> 	string sum = parenthesized("4 * 5");
>>
>>     writefln("ptrSum : %s %s", ptrSum, *ptrSum);
>>     writefln("sum    : %s", sum);
>> }
>>
>> auto ref string parenthesized(string phrase) {
>>     string result = '(' ~ phrase ~ ')';
>> 	writeln("&result: ", &result);
>>     return result;      // ← compilation ERROR
>> }
>> ```
>
> I don't know what's happening here, but it seems like a bug. 
> This should not compile (it does for me, despite the comment 
> above).

Yes, I think it's https://github.com/dlang/dmd/issues/19893. If 
`parenthesized` is moved above `main`, I get:

```
Error: cannot take address of expression `parenthesized("2 + 3")` 
because it is not an lvalue
     string * ptrSum = &parenthesized("2 + 3");
                                     ^
```