Refactor #4187

Job	Run time
build-distros (alpine)	16m 22s
build-msys	11m 9s
build-distros (archlinux)	16m 57s
build-macos	8m 25s
build-freebsd	16m 38s
build-distros (fedora)	12m 6s
build-distros (gentoo/stage3)	18m 33s
build-multi-archs	15m 2s
build-distros (opensuse/tumbleweed)	12m 9s
build-sanitizers	9m 35s
build-windows	29m 41s
build-distros (ubuntu:22.04)	10m 41s
build-sanitizers (-DMOLD_USE_ASAN=On)	12m 37s
build-sanitizers (-DMOLD_USE_TSAN=On)	23m 19s
	3h 33m 14s

Provide feedback