LLM's think we should have language tuples!

[Nick Treleaven]

On Friday, 4 April 2025 at 12:25:03 UTC, Nick Treleaven wrote:
> I built the branch and tried that sample and some variations, 
> but they each get:
> ```
> /home/nick/git/dmd/generated/linux/release/64/../../../../../phobos/std/json.d(144): Error: no property `Entry` for type `object.TypeInfo_AssociativeArray`
>                 JSONValue[string] unordered;
>                                   ^
> /home/nick/git/dmd/generated/linux/release/64/../../../../druntime/import/object.d(1289):        class `TypeInfo_AssociativeArray` defined here
> class TypeInfo_AssociativeArray : TypeInfo
> ^
> ```
> And:
> ```
> core.exception.AssertError at src/dmd/typinf.d(112): Assertion 
> failure
> ```
> I'm not sure if it's something to do with my setup or not. My 
> Phobos is  recent git, probably that's why.

I was using `import std;`. Using single module imports (or 
avoiding std) works!

```d
auto (x, y, z) = (1, 2, 3);

void main()
{
     import core.stdc.stdio;
     printf("%d %d %d\n", x,y,z);
     //import std.stdio;
     //writeln(x,y,z);
}
```

Uncommenting writeln causes a link error for me though:
```
Error: undefined reference to `pure nothrow bool 
core.internal.gc.blockmeta.__setArrayAllocLengthImpl(ref 
core.memory.BlkInfo_, ulong, bool, ulong, ulong)`
        referenced from `pure nothrow bool 
core.internal.array.utils.__setArrayAllocLength!(char).__setArrayAllocLength(ref core.memory.BlkInfo_, ulong, bool, ulong)`
```