[llvm] [flang-rt] Avoid duplicate definition of `std::__libcpp_verbose_abort` (PR #175551)

[Martin Storsjö via llvm-commits]

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mstorsjo wrote:

This isn't very pretty, but I guess it is a kinda reasonable way around this problem.

I have a faint memory that you mentioned that there was some precedent from elsewhere about doing the same; is that the case and can you provide that reference?

https://github.com/llvm/llvm-project/pull/175551