Release lld18-v7
How to reproduce build
git clone --recursive https://github.com/yandex/toolchain-registry.git /ix
cd /ix
git checkout 707d422c95662f1a2f53ee2de8c4d05db9eaeb33
export PATH=${PWD}:${PATH}
export IX_ROOT=/ix
export IX_EXEC_KIND=local
ix mut output --materialize bin/lld/18 --target={{TARGET}}