Fix #14931: dump file: Add classDef to scope (#8747) #20453

Job	Run time
build_cmake (ubuntu:24.04, true, true)	2m 55s
build_cmake (ubuntu:25.10, true, true)	2m 56s
build_cmake (alpine:3.23, false, false)	4m 31s
build_make (ubuntu:25.10)	5m 16s
build_make (alpine:3.23)	6m 3s
build_make (ubuntu:24.04)	3m 12s
	24m 53s

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