Stepping without using class vtables #805

Job	Run time
build (ubuntu-latest, noradio)	1m 58s
tests (ubuntu-latest, tests)	36s
build (ubuntu-latest, wifi)	2m 12s
tests (macos-latest, tests)	27s
build (ubuntu-latest, bt)	2m 7s
tests (windows-latest, tests_nosan)	1m 16s
build (macos-latest, noradio)	1m 31s
build (macos-latest, wifi)	1m 39s
build (macos-latest, bt)	1m 38s
build (windows-latest, noradio)	4m 26s
build (windows-latest, wifi)	4m 34s
build (windows-latest, bt)	4m 55s
	27m 19s

Provide feedback