[clang] [CUDA][HIP] make trivial ctor/dtor host device (PR #72394)

[Yaxun Liu via cfe-commits]

yxsamliu wrote:

> We've found a problem with the patch. https://godbolt.org/z/jcKo34vzG
> 
> ```
> template <typename T>
> class C {
>     explicit C() {};
> };
> 
> template <> C<int>::C() {};
> ```
> 
> ```
> <source>:6:21: error: __host__ function 'C' cannot overload __host__ __device__ function 'C'
>     6 | template <> C<int>::C() {};
>       |                     ^
> <source>:3:14: note: previous declaration is here
>     3 |     explicit C() {};
> ```

I will take a look. Thanks.

https://github.com/llvm/llvm-project/pull/72394