C++:
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class C {};
template <typename T>
void create(T** x);
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D:
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extern(C++) class C {}
void create(T)(T* x);
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Trouble is; in CPP, the template mangles as a C, but in D, the class
mangles as C*... so the mangling doesn't match.
`template<typename Class>` is an unbelievably common occurrence in
C++... but how do we express a signature that mangles correctly in D?
D always mangles `Class` as `Class*`... which changes the signature.
>_<
