[llvm] [libc] [openmp] [NVPTX][NFC] Change naming for global objects for ctor / dtor handling (PR #72137)

[Artem Belevich via llvm-commits]

Artem-B wrote:

> not targetable from user code

But it is. https://godbolt.org/z/eE3d6raYd

What's worse, I think unlike double-underscore symbols that are explicitly reserved for compiler's own use, we do not have such conventions for `$`-prefixed ones. Yes, they may be uncommon, but that's not a very convincing argument that the change will be an improvement over double-underscore prefix.



https://github.com/llvm/llvm-project/pull/72137