[llvm] [Coroutines] ABI Objects to improve code separation between different ABIs, users and utilities. (PR #109338)

[Chuanqi Xu via llvm-commits]

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+//===- ABI.h - Coroutine ABI Transformers ---------------------*- C++ -*---===//
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ChuanqiXu9 wrote:

I thought the name `ABI Transformers` will transform ABIs to ABIs. But it is not the case right? I feel the name may not necessary here.

https://github.com/llvm/llvm-project/pull/109338