[libcxx-commits] [libcxx] [libc++] Fix missing 'get_new_handler()' for Windows builds (PR #150182)

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mccakit wrote:

@frederick-vs-ja you have merged the [design document](https://github.com/llvm/llvm-project/pull/202668), are you going to merge this?

https://github.com/llvm/llvm-project/pull/150182