Johan Engelen

@ljmf00 Did you already check whether weka compiles with this error in? (e.g. that current code nor runtime depends on using defined overflow in ctfe calculation)

I'm not an expert here, but it feels like a brittle fix. (do we still have a bug with `shared`? `pure`? or some other attribute instead of `@system`?)

This bit me again today. It would already help if better / more diagnostic can be given about why opAssign is disabled (possibly even harder to implement than the fix...

Possibly fixed by https://github.com/ldc-developers/ldc/pull/4648

or https://github.com/ldc-developers/ldc/pull/3332

@kubo30 why did you close this PR?

LGTM Can we pull this? (no longer draft status?)

> When it comes to tests, most of the existing tests in the DMD test suite are end to end tests. Some are implicit and some are explicit. I would...

I'll start working on this. Another testcase: ```d void opaque(int* i); void foo() { { int[100] arr = void; opaque(&arr[0]); } { int[100] arr = void; opaque(&arr[0]); } } ```...

#4395