PR# 19991 Once classes: calling a regular once procedure

When calling a regular once creation procedure (one that has not been declared as creation procedure) on an instance of a once class, we end up either with a runtime segmentation violation in workbench mode, or with a C compilation error in finalized mode.

--
Eric Bezault

class AA

create

	make

feature

	make
		local
			b: BB
		do
			create b.f
			b.g
		end
		
end
~~~~~~
once class BB

create

	f

feature

	f
		once
		end

	g
		once
		end

end