PR# 19621 Call on SCOOP variable not clickable in editor

In the following code, `to_lower` is not clickable. And auto-completion when the target is `s2` does not work either.

~~~~~~~~~~~~~~~~~~~~~~
	f
		do
			create s1.make_empty
			separate s1 as s2 do
				s2.to_lower
			end
		end

	s1: separate STRING
~~~~~~~~~~~~~~~~~~~~~~

Note that there is no such problem when `s2` is a formal argument of the routine:

~~~~~~~~~~~~~~~~
	f (s2: separate STRING)
		do
			s2.to_lower
		end
~~~~~~~~~~~~~~~~

--
Eric Bezault