Clicking on a rule, either the name or the expression, opens the rule
result (or the corresponding expression, repsectively) in the
expression browser. This should by default happen in the console tab,
as, more often than not, displaying it in the graph tab runs into a
timeout.
These tests have been added after the /graph changes and therefore
already test the new syntax.
This commit has to be reverted together with the previous one to get
back to the old new state. *sigh*
