Consolidate implementation details #8193

Job	Run time
mingw (ucrt64)	4m 51s
mingw (mingw64)	3m 32s
build (windows-2019, x64, v142, 17, -DBUILD_SHARED_LIBS=ON, Release)	2m 20s
build (windows-2019, x64, v141, 17, Debug)	1m 32s
build (windows-2019, x64, v141, 17, Release)	2m 31s
build (windows-2019, x64, v141, 14, Debug)	1m 25s
build (windows-2019, Win32, v142, 17, Debug)	1m 26s
build (windows-2019, x64, v142, 17, -DBUILD_SHARED_LIBS=ON, Debug)	1m 21s
build (windows-2022, x64, v143, Debug, 20)	1m 57s
build (windows-2019, x64, v142, 20, Debug)	2m 9s
build (windows-2019, x64, v142, 17, Release)	2m 25s
build (windows-2019, Win32, v142, 17, -DBUILD_SHARED_LIBS=ON, Release)	2m 9s
build (windows-2019, Win32, v142, 17, Release)	2m 18s
build (windows-2019, Win32, v142, 17, -DBUILD_SHARED_LIBS=ON, Debug)	2m 3s
build (windows-2019, x64, v142, 20, Release)	3m 28s
build (windows-2019, x64, v141, 14, Release)	2m 26s
build (windows-2019, x64, v142, 17, Debug)	1m 30s
	39m 23s

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