fix #14802: false positive: shadowFunction (shadowing non-static in static) #19906

Job	Run time
build_make (ubuntu:25.10)	5m 2s
build_cmake (ubuntu:24.04, true, true)	5m 22s
build_make (ubuntu:24.04)	4m 6s
build_cmake (ubuntu:25.10, true, true)	5m 16s
build_make (alpine:3.23)	5m 2s
build_cmake (alpine:3.23, false, false)	4m 30s
	29m 18s

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