Fix #14633 FN funcArgNamesDifferent for function pointer (regression)… #19260

Job	Run time
build_cmake (alpine:3.23, false, false)	4m 4s
build_make (ubuntu:24.04)	3m 14s
build_make (alpine:3.23)	5m 24s
build_cmake (ubuntu:25.10, true, true)	2m 54s
build_make (ubuntu:25.10)	3m 40s
build_cmake (ubuntu:24.04, true, true)	2m 43s
	21m 59s

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