Simplify constant propagation code #4

Job	Run time
build (windows-latest, x86, static, debug, MDd)	6m 28s
build (windows-latest, x86, static, debug, MTd)	6m 27s
build (windows-latest, x86, static, release, MD)	3m 53s
build (windows-latest, x86, static, release, MT)	4m 43s
build (windows-latest, x86, shared, debug, MDd)	6m 21s
build (windows-latest, x86, shared, release, MD)	4m 12s
build (windows-latest, x64, static, debug, MDd)	6m 27s
build (windows-latest, x64, static, debug, MTd)	6m 27s
build (windows-latest, x64, static, release, MD)	4m 35s
build (windows-latest, x64, static, release, MT)	4m 4s
build (windows-latest, x64, shared, debug, MDd)	6m 28s
build (windows-latest, x64, shared, release, MD)	3m 52s
	1h 3m 57s

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