use the narrower of Class and Module #12828

Job	Run time
make (check, --enable-shared --enable-load-relative)	7m 34s
make (check, cppflags=-DVM_CHECK_MODE)	9m 20s
make (check, i686)	11m 27s
make (test-bundler-parallel, 50)	21m 1s
make (check, ubuntu-24.04, capi)	10m 18s
ruby-bench (--warmup=1 --bench=1 --excludes=shipit)	13m 25s
make (test-bundled-gems)	13m 2s
make (check, --disable-yjit)	7m 27s
make-ibm	0s
Ubuntu result	3s
	1h 33m 37s

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