[Issue 23638] [betterC] Better Error Message For Runtime Usage

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=23638

--- Comment #2 from Jack Stouffer <jack at jackstouffer.com> ---
(In reply to RazvanN from comment #1)
> Unfortunately, the problem comes from the fact that the hook uses typeid
> internally. `dup` is just a normal template so the compiler does not give it
> any special treatment. The source of this is that dup uses internally typeid
> to pass a Typeinfo to the newarray hook (which currently is not
> templatized). Once newarray is templatized and Typeinfo is not needed
> anymore, the problem will disappear.
> 
> So, I guess, the real solution in this case is to templatize the
> _d_new_array hook.

Sounds like the actual root cause is that use of typeid in betterC mode doesn't
result in a trace. People have been trying to template-ize druntime for like
seven years so fixing the typeid problem is more likely to bear fruit.

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