
This reverts commit 2e414799d0ad511cd7999895014a2cae2ea5e3e3. Reason: buildbot breakage (https://lab.llvm.org/buildbot/#/builders/51/builds/4105) (This was the only new CL.) /home/b/sanitizer-aarch64-linux/build/llvm-project/llvm/lib/Transforms/Coroutines/ABI.h:71:31: error: 'llvm::coro::AsyncABI' has virtual functions but non-virtual destructor [-Werror,-Wnon-virtual-dtor] 71 | class LLVM_LIBRARY_VISIBILITY AsyncABI : public BaseABI { etc.