Fix #14785/14786 FN unusedStructMember (scoped standard type, smart p… #621

Job	Run time
build (ubsan, -DANALYZE_UNDEFINED=On, true, process, true)	46m 46s
build (asan, -DANALYZE_ADDRESS=On, true, process, false)	13m 37s
build (tsan, -DANALYZE_THREAD=On, false, thread, false, --executor=thread --error-exitcode=0)	11m 34s
	1h 11m 57s

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